4l80e line pressure chart. 2003 GMC Sonoma LQ4 6.

4l80e line pressure chart 84 gear set offers benefits go far beyond a 1st Gear ratio change. In 2004, cooler line return port in the pump was eliminated and corresponding location on pump A Trans-Go shift kit is a complete waste of money on a 4L80E. This valve regulates line pressure into converter pressure and will keep a 200 psi fixed line pressure system down to approximately 60 to 75 psi. Mode d’installation Solénoïde de régulation de pression (moteur force) GM Pour transmissions 4L30E, 4L60E, 4L80E et ZF If you ever run across a 1997 -up design where the cooler line fittings are seperated more, one cooler line is in the front of the transmission and the other is towards the rear. I installed a TCI reverse manual valve body kit which modifies the boost valve and regulator to lock the pump at line pressure. This consisted of: - New clutches and generic rebuild kit - Billet input shaft and forward hub - New pump with Sonnax boost valve and PR valve - Transgo HD2 I suspect my line pressure is not where it should be and would like to datalog line pressure if I can. 4L80E main line pressure adjustment. Though I like the Sonnax 4L80E-LB1 better. teckpak-fitzall. Remove the transmission filter, exposing the clip and the bolt on the force motor solenoid and the U-shaped retaining clip for the PWM solenoid. Helps cure: Engine surge at idle; Broken parts due to excessive line pressure; Buzzing noise; Metal contamination; Output shaft the tune maxes out line pressure pretty early, previous logs show it at 96 psi signal pressure through shifts. Electric pressure and mechanical pressure both checked at the same time, got similar numbers. CONNECTING THE ESSENTIALS Step 1: Ground Electronic Fuel Injection Splice the for 4L30E, 4L60E It 4L80E 3460SU 3. I was struggling with my 4l80 shifti On most electronically controlled transmission (4L80E’s and 4L60E’s) line pressure is controlled by the pressure control solenoid using a PWM amperage signal that varies from 0 amps to 1 amp. Remove the Line Pressure 50-171 67-324 Line Pressures FOR 4L80E: Gear Range Drive, Park or Neutral Reverse I hese are idle pressures to wide open throttle pressures. I got it back in the truck and when starting for the first time I put a 0-300 psi gauge on it to verify line pressure. However, GM, in 2006, recommended the Dexron VI outfacing the Dexron III. I’m getting a solid 200psi in every forward gear, park, neutral, and with trans brake applied. Then I took off all the torque reduction management. 5" I believe its around a 3800 stall. You might experience erratic shifting or excessive wear in certain parts. You could probably use the chart against a hard pull, look at your Airmass and compare it to get an idea. These will often result Tips for building a 4l80e without the HD2 Kit (By Grady): If you're going to tear the trans down to a bare case and actually build the thingdon't spend your money on the transgo HD2 Kit. I also decreased shift times to around . 0 commanded amps equals minimal line pressure. 4. The Service Engine Soon (SES) or (TRANS) lamps illuminate under specific conditions. I also found others that indicated the opposite, hence my confusion. Lowering the voltage increases the line pressure and speeds up the shift. 4L80E; 6L80, 6L90; Dodge-Cummins Diesel; Powerglide; TH400; Where to Buy; SonnaFlow® Chart: 4L80-E (Normal & Poor) Accurately detect flow-related transmission problems during vehicle road tests or on a dynamometer with the SonnaFlow® Kit. there is no way to measure the pressure on the cooler because it flows freely with just enough restriction to slow and cool the fluid. A scan tool interface is incorporated for ease of diagnosis. We have the best part and the fastest shipping online! A750E/F A761E Line Pressure; AC60E AC60F Fluid Info; AC60E AC60F Torque Specs; 5R110W Transmission Diesel Pressure Test Chart; 5R110W Transmission Clutch Pack Clearances & Gear Ratios ; GM ended up going up to a 1/2" line for the 4l80e, but the radiator reduces it down to that of a 5/16" line. No codes from the ecu, tried another ecu as well but same pressure. If you have a large drop in pressure from cold to hot, you most likely have a damaged What kinda line pressure should i see on the cooler circuit of a built 4L80 with a 3600 stall? I am measuring on the pressure side, off the front fitting of the trans (late model 4L80E Range Reference Chart Notes. Right, going to make a statement about stock 6L80 / 6L90 Raising the max pressure, max pressure B, max clutch & max line pressure tables does nothing on a stock unit to increase line pressure. To decrease the pressure approximately 15 psi, turn counterclockwise one sixth turn. 4l80e is good for 200,000 miles almost no matter what you do. The CarDivision Code is represented by the 3rd digit of the VIN. Material: Aermet; Required. Carefully push Sonnax large ratio boost assembly 4L80E Application Chart Mitigate high line pressure risk by vacuum testing the pump as shown in the video above and replacing the boost valve/sleeve and, if necessary, pressure regulator valve with Sonnax or Symptoms like this are common with 4L80E. 9 amps after warm up, to force motor. Featured content New posts New media New media comments Latest Your pretty much stuck with the flat . Pressure gauge is hooked to the line pressure port of the trans. One is closer to the bell housing and one is near the tail of the tranny. Instructions read as follows: Pressure Transducer (optional). About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright When dealing with 4L80E transmission problems, knowing the common issues and their fixes can save you time and money. My 6l80e in my 13 tahoe is my first venture. The fittings do not appear that they will inhibit flow, the groove is cut into both the bolt and banjo and deep enough Hey guys—I'm plumbing in an auxilary trans cooler in my '91 V3500 with a 4L80E, and need to know which of the two cooler lines going to the radiator is the feed, and which one the return? might be a good idea. Was wondering on a 4l80e, when the converter is locked and the line pressure is at max, what charge pressure is the converter seeing? Trying to understand the fluid schematic. If But slow offroading heate trans up more because no slow speed cooling so shorter life. About 50-60 lbs of line pressure. This early harness has a problem with leaking fluid at the If possible, perform a line pressure check to ensure that line pressure is correct at idle (typically 60 - 80PSI), and that it smoothly increases toward maximum (typically 190-240PSI) as Pre-1993 4L80E transmissions use a different internal wiring harness and pass-through connector. Ford Aod Transmission Rebuild Manual Pdf Line Pressure Booster Kit 4L80E-LB1. The pressure chart shown is used for all Astro and Safari vans that use the The folowing chart can be used to determine pressure using scanner to command pressure at all settings to determine epc function/pump and internal leaks. 2 posts · Joined 2009 Add to quote; Only show this user #1 · May 13, 2009 (Edited ^^^^ the cooler system is designed on a stock transmission to flow a volume of fluid. Keep them coming I?d like Email tuning!!!, Mail order, Dyno tuning, Performance Parts, Electric Fan Kits, 4l80e swap harnesses, 6l80 -> 4l80e conversion harnesses, Installs. Jakes D3 VB CK Purple spring rated for 185-190 maximum line pressure in a stock setup Sonnax LB1 boost valve Line Pressure - Transmission Line Pressure - Click Herefor the internal operating conditions. The newer trucks don't have that table, and I just did a SD tune on a 2007 6L truck with the Gen III pcm and no shift pressure issues. September 9th, 2016, 06:56 AM -1993 K3500- 4x4, single cab/long bed, single rear wheels, 4. For a year and a half, the pressure would be around 35-40 psi at idle and driving around. gov oil pressure will lower line pressure. This is not electronically controlled. Main Line Pressure- Needing help getting a transmission line psi readout. Also change the Max Pressure to 96, as it usually is 90 stock. Jump to Latest Recently had a 4L80E with reducer in pump, 3/16" clearance, pilot barely entering the crank adapter, in a supercharged street car with transbrake at 800 rwhp in a heavy convertible and have made dozens of mid 9 second passes and a whole lot of hits on the street and 5000 miles per year on the Line pressure is controlled like any other 4L80E, by the pressure regulator in the pump. You know, recently, I purchased a 2000 C3500 CCLB. A few of the new features added with the 4L80E in comparison to its predecessor were electronic controls, overdrive Im super wet behind the ears with tuning and tweaking. It should recover quickly and stabilize. Large Since then I’ve prepared many 4L80E transmissions for competition using these methods. It also looks like the converter limit valve isn't doing anything at this point. 4l60e line pressure chart. RDF1. Ensuring that 4l80e line pressure and pcm amperage My tech 2 scanner shows . Check that oil is full and warm transmission up to operating temperatures. So far I tuned the VE tables, MAF table, & removed all the torque management I can find. 10 rear end, F vin, Nv4500, factory red interior, 283,000+ miles A few mods: 3" straight pipe, Genuine HX35, Flowmaster 3" downpipe and 2. Email tuning!!!, Mail order, Dyno tuning, Performance Parts, Electric Fan Kits, 4l80e swap 4L80E; 6L80, 6L90; Dodge-Cummins Diesel; and a sure sign of this problem is gauge needle-bounce when testing line pressure. the temp was getting hotter then average around town and it was over heating while driving on the freeway at 75. who built my 4L80E recorded the following line pressures when testing the transmission in shop. What’s The Difference Between 4L60e and 4L80e. COOLER RETURN LINE CHART CHRYSLER. There is only one port to check though. Cut the OEM solenoid connector ends from the wiring harness as close as possible to the plug. Original Orifice Dia. The pumps are marginal to begin with and if asked to make higher pressure this symptom is more likely. tfmprs) that maxxes out at 90 psi. Last edited by 72tutone ; 11-11-2020, 11:22 AM . Kit fits all 6L45–6L90 applications; For the base shift pressure table, I first change the 0 ft lb column of the 1-2, 2-3 & 3-4 shift table to 0. 11-12-2024 #3. On the older vehicles with the max pressure DTC enabled, in SD mode with stock shift pressures, the trans shifts are very hard. However, many performance enthusiasts prefer to reprogram the 4L80E to run as a simple on-off solenoid. now when you have a leak it does pump a lot of fluid out but not because of pressure but the volume it flows. 7 Vortec and 4L80E. But it's simple to get to and We need to remember, line pressure feeds the converter regulator valve. I have seen where Clinebanger has said buy sonnax kit line pressure kit # 4L80E-LB1. The 4l80e recommended transmission fluid if Dex / Merc aka Dexron 3 (Dex III), or is backwards compatible with the modern Dexron 6 (Dex VI), and has a fill capacity of about 14 quarts of transmission fluid. 34200-05K NOTE: Test indicated orifice with vacuum tip. View Profile View Forum Posts Private Message Advanced Tuner Join Date Max Line Pressure on P0101, P0102, and P0103 is only on the 99-02 P01 PCM truck calibrations and it is What's the line pressure supposed to be in a 4l80e manual valve body transmission? Better yet a transgo stage 3 kit at idle and load? My 4l80e died out on me after 600 miles. I've used the Raybestos GPZ line as well I'm tuning a 99 5. i had a jakes recal kit in it but the check balls beat the plate holes which i think caused the burned up clutches. This can be used to monitor transmission line pressure if desired. When the engine attached to a 4L80E is idling in drive, between 500 to 1000 rpms, the pump output or volume is VERY LOW. Mode Switch Logic . Recommended. I believe Clinebanger also suggested another o-ring plug kit, with a different number. It is a force motor that responds to current. SC-4L80E Transmission Reconditioning Kit FULL COMPAT I B I L I T Y • Full compatibility with 1991 and up. What's new. motor is running great and I have been tweaking the trans tune every few days. Post I tried to circle the 4l80e stuff, big arrows When the engine torque increases due to (usually) throttle position increase, the EPC acts like a TV cable (throttle valve cable) "pulling" the TV cable results with increased transmission line pressure, likewise when the TPS increases it should "PULL" the EPC's imaginary cable and raise line pressure. 1. ) 4L80E Transmission Interchange Chart. I found this chart. You can set the shift pressures different for each gear if desired. New posts Search forums. ly/1TeXSiUGive us a call at 800-708-0087Curt shows how to check the pressure in your transmission. The transgo kit does 2 main thingsincreases line pressure and "dual feeds" the direct clutch. The actual pressure is determined by the pressure regulator system Line pressure is regulated at a set PSI based on the spring in the pump regulator valve. If you are not using an output to control the line pressure solenoid, your 4L80E/4L85E will apply full line pressure at all times. 2. Forums. 4 inches long and features 17 bolts. https://www. Temps never got above 175, mostly stayed around 140 even when cruising. 34200-14K TCC Valve & TCC Enable Valve • No converter apply Line pressure chart for Ford's 5R110W automatic transmission for diesel engine applications manufactured between 2003 and 2005 for For Excursions and F-Super Duty models. The port on the side of the transmission is actually a pressure test port. 368" 4L80E/TH400 Plate doesn't fit '99 & up Cases. Zero amps or a commanded 0. Thanks for posting video of the 4l80e pressure gauge. 9 volts to it and get the maximum current; however this is not a good solution, the variation of the force motor 4L80E; 6L80, 6L90; Dodge-Cummins Diesel; Powerglide; TH400; Soft shift & low accumulator pressure; High line pressure in Drive; Low line rise in Reverse; Required. Jump to Latest 14K views 3 replies 3 participants last post by Crosley May 14, 2009. The current specification is 0. C. This innovative flow meter diagnostic tool kit measures ATF cooler flow rates in gallons per minute and can be connected to a lab scope with the addition of an optional output signal 4 L 8 0 - E Part No. If the apply pressure is modified and line pressure is elevated as well (by I have a 4L80E that has a manual valve body with trans brake. The forward gears should read roughly around 90 130 or so from the top of my head. I See this in many 4l80e files 4L80E main line pressure adjustment. My newly built 4L80e transmission is in! It doesn't work. I also left the mph that the converter would lock up, so it would drive like the old There are 2 lines on the passanger side of the transmission, 4L80e. The pressure does not change when I rev the engine. Moderators: jsmcortina, muythaibxr. 3 with a GT2-3 cam and 2000 LS1B w/ COS 5. Line pressure then goes into a valve in the valve body called the AFL (Actuator feed Sonnax LB-4L80E Boost Valve and spring kit + Sonnax Line-to-Lube Pressure Regulator Valve: High line pressure can occur when either the Boost or PR valves wear to the extent they begin to stick wide open Line pressure is controlled like any other 4L80E, by the pressure regulator in the pump. Its in a heavy 4x4 with a fresh SRTA 4L80E 2K stall and 3. This should spike with slight pressure applied on the cable As the title says, I have a fixed line pressure 4l80e that makes good pressure when cold, but slowly drops as it heats up. 4L80E; 6L80, 6L90; Dodge-Cummins Diesel; Verify that both the low side and the high side of line pressure at each of the shifts are within the pressure test chart specification. The only way to increase line pressure is raise the reported torque via the torque model or install a Sonnax line pressure boost valve kit. The regulating feature appears to be the line pressure during lockup as opposed to a So looking at the powerflow chart and shift solenoid pattern from my ATSG manual I have come to 3 conclusions. 0¥ERl¥DiW Diagnostics Hydra-matic 4L80-E and 4L80-E/HD diagnostics are summarized as follows: A. pdf - United States Army Check Details 4L80 vs 6L80 bellhousing size - The 1947 - Present Chevrolet & GMC. Symptoms of a faulty 4L80E boost valve include erratic MS 4L80E Master Solenoid Kit Teckpak Hotline: 1-800-527-2544 www. 3. The truck we are working on is a 2013 Chevrolet Silverado 1500. This netted me bumping 1-2, 2-3, 3-4 shift pressures by 5%, running the blue cat calculator at a 4 I have a 4wd 80e with a d3 transbrake built at a local shop rated to 1500hp for a truck I’m building. 497" dia. I read on 1 of the forums about it, The 4L80e featured a die-cast aluminium case which accounts for its sturdiness. 4L80E Electrical ? 2nd gear only - Page 3 - Diesel Place : Chevrolet and GMC Diesel Truck Forums Post #22. Warning: apply parking brake and foot brake Line pressures at start up were 150 psi in all forward gears and 275 ~ 300 in reverse. 06 to 0. To Remove: Unplug the solenoids. Part of the issue is that the cooler lines on a 4L80E are not angled but come straight out of the case. So this article provides a tried-and-true procedure for converting any 4L80E transmission to full manual control, eliminating the need for a PCM. Do you use the same procedure when tuning 4l60e's with shift kits and can it be used on 4l80e's as well? 1999 corvette FRC - LS2, Tick tq max stage 3 cam, AI 4l80e line pressure chart: 4l80e pump diagram chart: best 4l80e rebuild manual: 4l80e pump diagram model: 4l80e transmission exploded view diagram: 4l80e pump diagram generator: 12 3 4 5. To test the pressures for 3rd, 4th and manual 1st, we will have to go on a road test while Line pressure and shift feel are also controlled electronically with a Pressure Control Solenoid (PCS) located on the valve body. The editor should clamp the max pressure to 96 psi. http Excessive cooler pressure is usually not an issue with the 4L80E due to the presence of a secondary converter regulator valve upstream of the pressure regulator valve. The 4L80e is 26. vehicle with pressure gauge and scan tool attached! Transmission terminal pin out. PDA. Line pressure and shift feel are also controlled electronically with a Pressure Control Solenoid (PCS) located on the valve body. I recently rebuilt my 4l80e (2002 model, rwd) and did a LOT of searching The Ford 4R70W transmissions already have the "Line Pressure Signal" wired to J4-B21. if you think its under a lot of pressure As the title says, I have a fixed line pressure 4l80e that makes good pressure when cold, but slowly drops as it heats up. Choking off cooler flow can also cause pressure spikes in main line pressure which is already a concern with the 4l80e(probably why GM went to larger cooler lines). Any time you raise baseline pressure – whether by installing a stronger spring or turning in on the Often in the 4L60E and 4L80E, worn AFL bores result in low actuator feed and line pressures. 4L80 Trans Cooler Line Pressure. Find the line on the transmission from this slightly outdated chart and follow it to the radiator if in doubt. b. I don't exactly know about line pressure being measured at the pressure port on the left side of the transmission. Check Details. (electronic pressure control Can a 4l80e replace a 4l60e . The rear fitting is the return from the cooler and the front fitting is the output to the cooler. It seems fine to play with a 1995 4l80e Home. If it matters my transmission is supposed to be a 2013. This netted me bumping 1-2, 2-3, 3-4 shift pressures by 5%, running the blue cat calculator at a 4 To start, this is a turbo (S366) third gen 5. The transmission also received an improved I have a 2004 GMC Sierra with a 5. The input will need to be configured for the sensor used in the I/O and then mapped to J4-B21. This innovative flow meter diagnostic tool kit measures ATF cooler flow rates in gallons per minute This is a quick video on how to test line pressure on a 4L60E. mert4787 Discussion starter. 4L80E Line Pressure. Use this chart to determine drill diameter for any increase in orifice area that you think best suits the vehicle you are working on. You just need to Pin Map this Input. Fluid requirements: The only fluid that can be used in the 6L80/6l90 units is Dexron VI. com 1. My transbrake is a Jake's D1, which requires the car to be in low. Pre-1993 4L80E transmissions use a different internal wiring harness and pass-through connector. Everything is good other than the higher than desired line pressures. The set time is a bit slow on this video because we forgot to max out the line pressure with the pressure control solenoid. 5 to 4. PART NUMBER HP-4L80E-01 INSTRUCTION BOOLET ©2021 Sonnax Transmission Company, Inc. 66 ohms 1. I have tried to study the methods myself but I've never messed with an automatic vehichle before and increase the pressure approximately 15 psi, turn clockwise one-sixth turn. I think that there is a chart somewhere indicating amperage to the force motor vs line pressure. Airtight closure prevents 6l80 troubleshooting pt1How to setup a 4l80e/4l85e with ftmanager 6l80 chart range transmission reference slow manual death material forum700r4 line pressure settings/readings. My line pressure is: 120 idle 205 reverse 1-4 gears cruizing 90-120 typically when downshifting to 2nd and doing wide open throttle it's at 90psi and stays at 90psi and slips. He tells all the information The chart in Figure 7 lists the Model Year and the corresponding code which is represented by the 10th digit of the VIN. If you have a large drop in pressure from cold to hot, you most likely have a damaged or worn pump. 3 quarts for its 310 mm torque with its initial recommended fluid as the Dextron III. 497" Line pressure instability EPC Solenoid Harness Adapter 34435-01K For use with early-style (’92-'02) EPC solenoid in late-style (’03-later) units Find great 4L80E and tech information from Global Transmission Parts. This consisted of: - New clutches and generic rebuild kit - Billet input shaft and forward hub - New pump with Sonnax boost valve and PR valve - Transgo HD2 Video shows how to check the transmission line pressure on a 4L60E transmission. Nitrous Express Precision Turbo TRZ motorsports NGM Diesel EFI Live Current Performance Liljohn Injector Dynamics It may say line pressure but it's actually duty cycle which effects your actual line pressure. 4L80E-LB1. As a result (by design) it restricts oil into the converter. There is insufficient oil volume to work the balance side of the pressure regulator valve to open the converter charge circuit. The converter pressure during a 3rd gear pull unlocked would drop to about 35psi and the level off to 50 psi. 3 with a fresh 6l80e and ZL1 converter. Ask away! with jeff smith: upgrading 6l80/6l90 transmissions for boostSponsored video: gm 6l80 random shift issues Pressure fueltechPerformance 4l80e 6l80e 6l90e Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressive pressure increases as driving conditions become more demanding. , Line pressure instability EPC Solenoid Harness Adapter 34435-01K For use with early-style (’92-'02) EPC solenoid in late-style (’03-later) units Sonnax drop-in lube regulated pressure regulator valve allows regulated flow to the converter charge/lube circuit at vehicle idle, while preventing converter or pump drainback. A750E/F A761E Line Pressure; AC60E AC60F Fluid Info; 5R110W Transmission Diesel Pressure Test Chart; Troubleshooting the 4L80E Automatic Transmission Page 9 Transmission Range (TR) Pressure Switch Assembly. 73's The question I have in this thread, is do I have the line pressure correct for my application? The trans builder said to have all the line pressure in by 25% throttle or so. facebook. 4R70E, Runaway line pressure is caused by Boost Valve Sleeve wear, The Trans Go SK-4L80E boost valve assembly is OK. Our pressure regulator springs are approximately 10% stronger than OE and more conservative in impact than other aftermarket kit springs. Symptoms include poor line rise and burned clutches. Is it 5/16t or 3/8 line. This function is also controlled by the PCM and the numerous electronic signals from the sensors. 0/4l80E With stuff from. The 4L80E uses shift solenoids A and B to control upshifts and downshifts in all forward ranges. I have the shift points perfectly where I want them, here is the tune so you can see what I have going on, currently running this tune. Low Voltage at Pin E - Verify voltage like this poster ran into. the PCS table is modified with 'lower' numbers to increase pressure, its the same table i ran for years with great shifts. 4L80E line pressure test @ 6-7% - YouTube Check Details Humvee-4L80E-Transmission Troubleshooting. But my hummer is at 150,000 miles and I expect to need full rebuild before Verify that both the low side and the high side of line pressure at each of the shifts are within the pressure-test-chart specification. 6L80/6L90 Internal Componants . The five pressure switches are connected to three signal circuits referred to as range signals A, B and C Ive tried searching for the line size coming from the trans to the cooler on a 95 2500 4l80e. The bore should be addressed to eliminate wear, as leakage results in flooded or starved solenoid feed and ultimately a loss of line pressure. Exit pressure out the return line was maybe 5 - 10 psi. 4L80-E, 4L85-E, TH400 Extreme Duty Main Shaft 34672-05. , Line pressure instability EPC Solenoid Harness Adapter 34435-01K For use with early-style (’92-'02) EPC solenoid in late-style (’03-later) units 1. All I found was the EPC solenoid pressure (GM. Line pressure then goes into a valve in the valve body called the AFL (Actuator feed limit) which regulates how much line pressure goes to the clutches/bands servos. I was told the line near the rear is the line that goes from the tranny to the cooler. I keep it nice and soft off boost (around 40 to 50%) then ramp the pressure up as map The tech. (Just to add some information to anyone that may ever need it. The trans has 5,000 street miles and about 20 track passes. A torque converter with a higher stall speed can greatly improve off-the-line acceleration. The chart below shows how changing to the 2. i gauge to pressure tap drivers side of unit. I also have a 91 v3500 with the 4l80e. The Line Pressure transducer harness connector is simply plug & play into the optional Holley EFI 554-136 500 PSI Pressure Transducer. meanwhile the inlet hose running to the cooler was at room temp at the cooler and got hotter 4L80E cooler line fittings. There is usually very little change in line pressure at the ends of the SonnaFlow® Chart: 4L80-E (Normal) Accurately detect flow-related transmission problems during vehicle road tests or on a dynamometer with the SonnaFlow® Kit. 4L80E line pressure. in most cases. Quick little video on how increasing duty cycle will lower trans line pressure on shifts which should be around 100 psi. This will add 0 psi at the 0 ft lb column of the shift pressure table & 40 psi at the 640 ft lb column. 3L silverado 2wd with a corvette servo and it will barely spin the tires over. 67898 I have searched and cannot seem to find these answers With the exception of the line pressure. B. s. I've developed a 4L80E Transbrake that will work in automatic or full manual mode and uses a stock pan. 1) Not used 2) Not used 3) Park-Neutral signal 4) Battery + 5) Ground- Ratios and solenoid chart . Shutoff engine, clean Lube Regulated Pressure Regulator Valve 34200-14K* Line Pressure Booster Kit 4L80E-LB1* Internal. It is a 4L80E transmission vehicle, and I was pretty sure that it was toast. The converter is a triple disc lock up 9. Loss of line pressure can overwork pumps, and, because of hydraulic circuitry, cause 1870 or TCC codes. isint it awesome 6l80 chart range transmission reference slow manual death material forum. Pressure Regulator Valve End Plug • Harsh/Soft shifts • Burnt clutches Replace with Sonnax Part No. There are some other contributing factors to runaway Sonnax 4L80E hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressive pressure increases as driving conditions become more demanding. The 4L80e transmission fluid capacity lurks at 6. Install 400 p. No problems with extreme pressure. _ M Manual Shift Only - All Gears Work: Click Here _ N _ O OBDI DTC Codes: Click I haven't seen a max line pressure DTC enabled since 2001. Like I said my line pressure is still 160 ish in park according to Holley gauge and laptop. 84. The Sure Cure® Kit SC-4L80E 77754-TL TCC/Lockup Symptoms No converter apply, Burnt converter O-Ringed End Plug Kit 34994-13 Fits TCC valve bore with . Always log Commanded transmission line pressure, current (mA of current applied 4L80E behind a 2001 5. M. The chart in Figure 8 lists car division code and the corresponding car division that built the vehicle. 4L80E Application Chart A 'Type One' case is considered any case manufactured between 1991-96 for a first gen 4L80E. The chart in Figure 9 lists the light truck division code 2016-10-21 Typical 4L80E converter charge pressure during high load is usually around 100 PSI, with a maximum line pressure of 180 PSI. High-pressure air is automatically injected into the fluid stream adding agitation to the ATF oil to enhance the removal of contaminated ATF oil and Current essential cooler line adapters are used to connect the J-45096 to the automatic transmission oil cooler lines that allows the J- 45096 to adapt to Refer to the flow rate chart in SI the pressure or counterclockwise to decrease the pressure. I was wondering if anyone has any idea what the standard line pressure for a stock 4L60E transmission with Vette servo installed would be; 1/2, 2/3, 3/4? I have the Superchips Flashpaq programmer and was going to increase the pressure, but I am not sure what would be safe and what is too much. Thank you for the table. Codes are available for most failures. Im starting a list of parts and am thinking about installing a trans temp sensor and do not want to tap into the pan. Its a bolt on 5. I was told by a transmission professional that I need to turn up the line pressure a bit. 5" crossover, Why use a 4L80E and not a 4L60E? The biggest fitment issue we see is in the cooler line area. 4L80E; 6L80, 6L90; Dodge-Cummins Diesel; For a more in-depth look at raising line pressure, read The Prescription for Optimum Pressure in the Sonnax online technical library. , and slightly higher on startup. This early harness has a problem with leaking fluid at the perform a line pressure check to ensure that line pressure is correct at idle (typically 60 - 80PSI), and that it smoothly increases toward maximum (typically This pressure moves the PR valve against the opposing spring pressure and opens the port for converter fill (charge oil). The computer controls the relationship between transmission line pressure and engine power, and it knows exactly what the amperage of the transmission pressure-control solenoid (PCS) should be at any given throttle In other words 100% PWM TCC for 80PSI vs 150PSI of line pressure is two completely different converter pressures despite both having 100% PWM TCC signal. 3L in a Silverado. GM 4L60E automatic transmission specifications, gear ratios, model year changes, application information, and additional details on the long-lived transmission platform. Tech Resources Sonnax hydraulic line pressure booster kits contain stronger pressure regulator springs and large ratio boost valves designed to work together to provide progressive pressure increases as driving conditions become more demanding. Part No. Comment. Basically what is happens is at idle rpm's the pump is not able make 100% of the pressure it is calibrated to. The 4L80E uses an electronic control module to monitor a number of vehicle and engine inputs as well as GM units work off amperage. 2 posts · Joined 2009 Add to quote; Only show this user #1 · May 13, 2009 (Edited 4L80E; TH400; TH350; Powerglide; Rebuild Kits; Converters; Transmission Tech Info; The average GM overdrive transmission will have 65-90 psi line pressure at idle on a gauge. Check GM Bull. It looks like the converter is fed from the TCC solenoid which is using line pressure. 100 PSI of converter charge pressure generates 89 pounds of rearward thrust on the overdrive planetary The Sure Cure® Kit SC-4L80E 77754-TL TCC/Lockup Symptoms No converter apply, Burnt converter O-Ringed End Plug Kit 34994-13 Fits TCC valve bore with . In the tune I changed the gear ratios for the transmissions, and also increased line pressures by 10%. The values shown below are an example. when i got home, tranny still overheated, i stuck my hand on the tranny pan and was hotter then chit, went up and felt the cooler, and it was at room temp. Guess I'm going to have to pull a line and do the bucket test. Pressure Regulator Valve • Engine surge at idle • Low TCC release pressure • Low cooler flow Replace with Sonnax Part No. By Hambone in forum 4speed RWD/FWD Transmission Tuning (incl T42) Replies: 7 Last Post: September 11th, 2016, 01:30 PM. I just rebuilt this 4l80e the other day and got it installed. Heavy Duty Forward Clutch Hub 34322-01; Heavy Duty Clutch Retaining Ring 28124* Line Pressure Booster Kit 4L80E-LB1. The 4L60E was introduced for the 1993 model year and was employed in a variety of Chevrolet and GMC - Line pressure solenoids reduce the line pressure when activated. 4L80E line pressure 'Microsquirt' Transmission Control development and support. Main line pressure will drop slightly during a shift. Nothing crazy. Includes information on 4L65E and 4L70E models, which are based on the basic 4L60E transmission design. 0 amps is default and it causes maximum pressure, 1 amp is minimum pressure. 275" Backing/Pressure Plate as the early Stepped . So theres a delay and slip in reverse but forward is little better. Can anyone share a picture of your 4l80e shift table? I have 4L80e, GMPP trans controller, 3. Engine TM has nothing to do with the trans, they are completely separate types of TM and most people including me have no use for engine torque management, you can turn those algorithms off. Holley has them ramp to 100% duty cycle very early on when using their turbo tunes. #00-07-03-026, Part # for update 12167310. jakesperformance. This system works with 4L80E and 4L85E automatic transmissions, as well as 4L60E, 4L65E, The GM part number for the Holley pressure control solenoid is 8684216. One full amp or 1. - To reduce line pressure, increase the percentage of duty cycle on the solenoid. 17 Jan 2024. 1 amp is maximum line pressure. Transmission 6l80 6l90 housing 4l80e line pressure rise rate. I followed a couple well put together beginner 6l80 tuning videos on youtube and searched around a little. The harness is supplied with a prewired pressure transducer connector. put it on the pressure side and it will extend the life of your trans. Label each pair of wires on the harness so as to not confuse them. Line Pressure Booster Kit 4L80E-LB1. Then right click on the table, go to Paste Special > Add. In some cars the early cores (91-96) fit better than the 97-up cores due to the cooler line placement. To test the pressures for 3rd gear, 4th gear Even with 4l80e I use a heavy dose of TM for pretty much all driving. There is an obvious change to the 1st Gear ratio: 3. All gears work fine, overdrive and lockup too. 4wd Silverado & Sierra 4L60E to 4L80E Conversion Crossmember 2000-06 [DIAGRAM] 2000 Blazer 4l60e Auto Transmission Shift Solenoid Diagram. 06 to 2. 4L80-E, 4L85-E Reverse Checkball Problem #3 - The High Pressure Oil Pump Following the pattern of race and vane style pumps of General Motors transmissions from years passed, the 4L80-E transmission is known for a variety of pump problems. Then change the 640 ft lb column of the 1-2, 2-3 & 3-4 shift table to 40. This is a troubleshooting video which hasn't (yet) fixed my problem, but some people might be ab The FSM's are fraught with unpardonable errors - certainly not the least of which concerns the 4L80E TCC solenoid dc resistance value: indicated value is 20-40ohms - real-life works-fine-lasts-a-long-time value = 10-15ohms - read and heed - also, now would be prime time to correct your books'n'charts, kiddies Its in a heavy 4x4 with a fresh SRTA 4L80E 2K stall and 3. Line is 3/8", hard lines all the way to the core support and then -6AN to the cooler. The direct clutch is used in 3rd gear and also for reverse. Lube Regulated Pressure Regulator Valve 34200-14K. This is true even with a fixed line pressure system. 6L80 vs 6L90: Devil's in the Details - Gearstar. jsmcortina Site Admin since this a line pressure thread relative to 4L80's, can you confirm whether or not DIY is putting the clamp diodes in the harness (or units) for the EPC and TCC outputs? I finally finished up the installation of a 4l80e and a 3600 revmax stage 5 converter. Is this line pressure high enough to keep the clutches from slipping with the high torque at low rpm of the 4BT or will I need to increase the line pressure when I set up my controller? In "drive" with no load on the trans 600 rpm 80 psi I have a strange problem with my rebuilt 4l60e 1995, I have a constant line pressure of about 180psi in all gears including park and neutral. 2003 GMC Sonoma LQ4 6. Joel Johnson 1969 Nova LS 408 Dominator EFI Jakes Performance Stage 3 4L80e Moser Wavetrac 12 bolt. 98 amp, since its resistance is about 5 ohms it is tempting to use ohms law to conclude you can apply 4. Transmission Location: 30‐40LE Rear: 404, 413, 470 Top: 41TE, 41AE, (604) Front Line Nearest Pump CFT30: Rear (note arrow on casting) E4OD: Rear Bottom 200‐4R: Bottom 300 (ST300) Top 325, 325‐4L: Top 350, 350C: Top 4L30E (Isuzu) Rear 4L60E: Top 4L80E: Lower Front 4T40/5: Bottom 4T40E: Lower 4T60E The 4L80E transmission was first introduced in 1991 and served as a replacement for the TH400 transmission. 4L80E Hardware Torque Specifications; 6L80 6L90 Torque Specifications; A750E/F A761E Line Pressure; AC60E AC60F Fluid Info; AC60E AC60F Torque Specs; MONSTER'S Website: http://bit. By design, most valves limit apply pressure to the TC piston around 130 psi. reverse is the highest pressure reading and that shoud be around 300 310 max. 300 seconds. A heavy-duty transmission cooler keeps temperatures down during extreme use. Is it that much different than the kit listed above #34200-01K? For $20 I can order it separate, if there is a worthwhile difference. With fixed line the pressure may not reach the A voltage source in not a good way to control this electronic pressure control. www. 73's The question I have in this thread, is do I have the line pressure correct for my EFILive Forum > Tuning > Petrol / Gas > 4speed RWD/FWD Transmission Tuning (incl T42) > 4L80E Line Pressure. I have a pressure gauge on the trans cooler line. • A Marmon/Berkshire Hathaway Company HP-4L80E-01-IN 08-03-21 Sonnax pressure regulator Line Pressure spring, OE small bumper spring (used '92-later) and OE spring seat into pump cover (Figure 3). Remove the Line Pressure with Transbrake- Jakes D1 4L80E 09-08-2014, 12:18 AM. Transmission oil pressure switch Sponsored video: gm 6l80 random shift issues Transmission engine swap ls torque Pressure line rise ratePressure 700r4 line settings readings chart body third atsg reply like. Next. This NOT a 4T65E or a 4L60E for that matter!! Shift/Correction kits are consumer grade products designed to correct issues in the easiest possible The Sure Cure® Kit SC-4L80E 77754-TL TCC/Lockup Symptoms No converter apply, Burnt converter O-Ringed End Plug Kit 34994-13 Fits TCC valve bore with . Hambone. 2-3 The line pressure is about 220psi. PUMP PA R T S ground update that affects line pressure. com/setti Application Chart An application chart is intended to inform what mechanical elements are working or not working inside a transmission while it’s in a given range and gear. . This valve has two inputs (Line pressure) and TV pressure (Controlled by the PC solenoid on 4l60e and by the throttle valve on the older 700r4s). I recently did a 411 PCM swap into my 97 GMC K2500 Suburban with 5. After a couple minutes of running the pressure in forward gears slowly dropped to as Below is from a 4L80E service manual: With engine running, shift transmission into Drive with foot on the brake, at idle in Drive, Park & Neutral, the main pressure should be The 4L80E is a prime example of an advanced, electronically controlled transmission. Line Pressure - psi (kPa) 169-195 (1165- 167-194(1151 161-190 (1110 155-186 (1069- 144_177 (993 133-167 (917 120-153 (827 1345) 1338) 1310) 1282) 1220) I have a 4wd 80e with a d3 transbrake built at a local shop rated to 1500hp for a truck I’m building. Required. This is after about 20 minutes of driving, the tran Fits 4L80/85-E. That's 2 big choking orifices in the flow is how I see it. While still holding the 3/8" adjuster, tighten the 5/8" lock nut. 73:1, 27 inch tires. In 2004, the H1 received a 4L80E with its own dedicated T42 transmission computer. com Racing GM Automatics 4L80Experts. This device is a set of five, nor-mally open, pressure switches that detect fluid pressure within the valve body passages (Fig-ure 11). View Full Version : 4L80E Line Pressure. Line Pressures FOR 4L80E: Gear Range Line Pressure Drive, Park or Neutral 70-171 Reverse 67-324 These are idle pressures to wide open throttle pressures. com Racing GM Automatics 4L80Experts Im super wet behind the ears with tuning and tweaking. 12 posts • Page 1 of 1. lgtp hzsg ovvw uamz siftvm ziqh fwbuwv fcpjg dlv annia