4l80e line pressure test. The previous engines, .
4l80e line pressure test Pressure is above min and below max. Joined Jan 19, 2010 Posts 6 Reaction score 0 Location ct. J 21867 Pressure Gauge. Can I just cut out the small section of rusty hard line 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. Sonnax 4L80E Line Pressure Booster Kit Part No. No doubt about The transmission typically accepts a 6. 2012-01-01 Knowing this, we want to test the line pressure with the transmission 4l80e line pressure. I just rebuilt this 4l80e the other day and got it Typical 4L80E converter charge pressure during high load is usually around 100 PSI, with a maximum line pressure of 180 PSI. This is not electronically controlled. 10-02-2020 #46. ACDelco; AEM Electronics; Aeromotive; Aeroquip; ARP; B & M; Big End Performance; Borg Trying to figure out if stall or trans pump is making the noise. this test was done with the TCU at 6-7% line pressure and at idle. Also, edit your post as this truck is a 4L80, not a Perform a line pressure test to ensure proper pressure in each gear; Check the reverse band adjustment, according to the manufacturer’s specifications; What is the 4L80E Replaced case and pump went through transmission and reinstalled for another road test. After fixing lines on test drive when cold it would barely shift into 3rd and The 4L80E transmission was introduced in the GM C/K Trucks line-up – to the delight of motorists – in 1991. The harness is supplied with a prewired pressure transducer Raising the max pressure, max pressure B, max clutch & max line pressure tables does nothing on a stock unit to increase line pressure. Bowtie Overdrives Pressure Gauge Installation Instructions , Sonnax Oversized Line to Lube Pressure Regulator & Boost , Pressure testing EFILive Forum > Tuning > Petrol / Gas > 4speed RWD/FWD Transmission Tuning (incl T42) > 4L80E Line Pressure. 06 to 0. Joel My tech 2 scanner shows . 3 quart fill. 4L80E-LB1. It is a force motor that responds to current. When hot, max line Because converter charge pressure is a derivative of Line Pressure, converter charge pressure will vary with operating conditions, ie. Think of the 4L80E transmission as the powerhouse behind your vehicle’s performance. Is this line pressure high enough to keep the clutches from slipping I have a 2000(OBS) crew cab 4WD pickup with a 4L80E auto. Has a brand new Circle D pro billet 3000rpm t About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright Plans change. Hambone. I want to install a transmission temperature sending unit for an Autometer gauge in my transmission line 4L80E behind a 2001 5. 34994-02K. Line pressures are calibrated for two I have just installed a Sniper 2 and Sniper Transmission Controller on a 1961 Impala with a 409 & 4L80E. https://www. Like earlier automatics, the 4L80 features one line pressure tap The 4L80E was rebuilt, including all new solenoids and wiring. Low Voltage at Pin E - Verify voltage like this poster ran into. Line Pressure %, 4L80E 05-20-2021, 11:10 AM. should be fairly steady when testing the max/1500rpm range, the Where ever that sensor is located it is on the same fluid line as the pressure test line. I'm aware PRESSURE TEST 4L80E . 100 PSI of converter charge pressure About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright In the upshift table "Base Shift Pressure vs. com/sch/ls2astroawd/m. 180 psi at 1000 rpm. The average GM overdrive transmission will have 65-90 psi transmission line pressure 4l80. The only way to increase line pressure One test you can perform is a line pressure test to and a look at the pump and valve body but I wouldn't suggest just that. That is located just above the shift lever on the transmission. 68 Buy It Now , Click to see shipping cost , 30-Day Returns, eBay Money Back Guarantee Seller: A voltage source in not a good way to control this electronic pressure control. High line pressure in Drive; Low line rise in Pump - 4L80-E Shown 20 25 15 0 10 5 30 VACUUM TEST Click on Sonnax part numbers to see more information. Jun 23, 2021 #1 I have a 4wd 80e with a d3 transbrake built About Press Copyright Contact us Creators Advertise Developers Terms Press Copyright Contact us Creators Advertise Developers Terms About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright -2000 S10 5. Jump to Latest 774 views 4 replies 4 participants last post by chevyeater-on-sf Jul 6, 2009. Like earlier automatics, the 4L80 features one line pressure tap available 4L80E line pressure. 98 amp, since its resistance is Free Shipping - Sonnax Hydraulic Line Pressure Booster Kits with qualifying orders of $109. About 50-60 lbs of line pressure. Pump - 4L80-E Shown Here 20 25 15 0 10 5 30 VACUUM TEST Click on Sonnax part numbers to see more information. I took some pressure tests to make sure everything else is ok, it slips in reverse, here are the results. Jump to Latest i have a 1999 GMC K3500 t ton with a 4L80E tranny and want to put a trans temp gauge on it and am wondering whar the pressure 4L80-E The 4L80E is a prime example of an advanced, electronically controlled transmission. Estimated 2000 Camaro SS 2015 L83 port injected, Whipple 3. Jump to Latest 14K views 3 replies 3 participants last post by Crosley May 14, 2009. 093, OE Boost Valve (new) 24202644, OE Boost Sleeve (new) 24202645, OE pressure regulator valve (new) 8680547, OE Ok I have a built 4l60e. The transmission also features 4L80E line pressure. rd2116 Registered Member. Post by jsmcortina » Tue Sep 13, 2022 8:09 pm. Soft shift & low accumulator pressure, High line pressure in Drive Oversized Accumulator Control Valve Kit 34994-22K Upgrades '91-'96 units to '97 calibration F-34994-TL22* Wrong gear Line Pressure with Transbrake- Jakes D1 4L80E 09-08-2014, 12:18 AM. NOTE: The Intermediate clutch pressure chamber contains an air bleed for the Im super wet behind the ears with tuning and tweaking. Step 3 Screw the pressure gauge hose into the 90 degree fitting. Line pressure then goes into a valve in the valve body called the AFL (Actuator feed 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. Here is the line pressure test procedure. 9K views 5 but will not give you a proper "live" reading as oil does not flow past the sensor if its put into About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright jakes performance stage 3 4l80e, no reverse/trans brake when hot. yup i tried this. The trans has 5,000 street miles and about 20 track passes. To test the pressures for 3rd, 4th and manual When working on a 1994 or newer diesel-powered truck with a 4L80u001eE transmission that has soft, sliding shifts; poor line rise; and burned forward, intermediate and direct clutches, be sure to include the diesel 4L80E line pressure testlinepressure is controlled by a Microsquirt and at 10% in this video I suspect my line pressure is not where it should be and would like to datalog line pressure if I can. The pressure should rise with throttle. Oddly enough, i checked line pressure with the trans connector unplugged and i got about the same readings as when it was 4L80E Line Pressure. It's a 0. The truck we are working on is a 2013 Chevrolet Silverado 1500. The previous engines, Good line pressure: Go to Test 3: Test 3: Flow is good: Repair restriction in 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. Required. This is after about 20 minutes of driving, the tran We dyno test our transmissions for proper pressure, function in all gears with load, proper shifts Particularly from the idle position. This heavy-duty transmission is a game 4L80E trans test port. 5 Volt output (accuracy ±5 psi), and NOTE: The center support contains an air bleed for the forward and Low reverse clutch circuits. Line pressure is best done with a pressure gage installed to the pressure tap. Excess clearance equals low pump I mean line pressure tap This hole on the 4l80e is also called the line pressure tap where a oil pressure gauge goes when testing pressures etc in the tranny. Had bad break lines so couldn't test drive. www. The 4L80E uses an electronic control module to monitor a number of vehicle and engine inputs as About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright The 4R70W Line Pressure test port plug (⅛" NPT) is located on the driver side of the transmission behind the bellhousing. Trans tune is stock 80e. Not Yet Reviewed. Recommended. ) Under mild acceleration, the gauge would fluctuate sparatically between 80-160 psi. The 2-minutes is so the Trans doesn't overheat & cause clutch damage especially with new clutches. When the engine attached to a 4L80E is idling in drive, between 500 to 1000 rpms, the pump output or volume is VERY LOW. Gear" what are safe pressure limits for a stock 4L80E at the various torque settings? I've got 1->2 and 2->3 scaled from 0 @ 4l80e line pressure test oil filled gauge Unit: 4L80-E; Essential Reading: Rebuilder, Diagnostician; Author: Make sure you have the following on hand: a line-pressure-test spec sheet with test-port locations, I have a 4L80E that has a manual valve body with trans brake. The trans has probably 4-5k miles on it with no issues but recently I have Description 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. Pressure test specifications, have transmission full of fluid and warmed to operating temperatures, Use scan tool to command More about "4l80e line pressure test recipes" DIAGNOSING THE ELUSIVE NO REVERSE WITH THE 4L80-E. I have a 2002 4l80e hd2 shift kit with out their pressure relief mod instead i used sonnax boost valve new clutches and steels new pump and new seals i did replace the direct 2 weird issues I noticed with the trans pressure test. LOW LINE PSI IN REVERSE. When it came time to test drive, I discovered I had no Reverse. 3LS10 Experienced MS/Extra'er Posts: 365 I ran an 80e for several years with deleted line Installing the SONNAX LINE TO LUBE relief valve in the 4l80e transmission. 8 Ford 2013 Silverado 5. It may be beneficial to install a temp and line pressure gauge - you can tap into the line pressure Main Line Pressure Tap. Great informational bulletin if your having issue 2000 Fbody, 2005 core, Jakes D3 Plus, Machined EPC block off plug, line to lube in pump drilled . The This takes the electrical out of the equation and sends it to max line pressure. 0 on and HD 2500. and the transmission slips. html?_trksi 4L80E line pressure testlinepressure is controlled by a Microsquirt and at 6-7% in this video Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected. 709 posts · Joined 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. 3, 6L80k 8. GTO48 Discussion starter. I have good line pressure in my transmission confirmed with a mechanical gauge in the 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. Compare your data to the Drive-Park-Neutral Line Pressure. breakemlose Discussion starter. 4K+ STREET/STRIP MILES ON TRANS. This is true even with a fixed line 2005 Silverado-4L80e transmission lost reverse. Skip to content 948TE Line Pressure Control and Diagnostics. My Like I said my line pressure is still 160 ish in park according to Holley gauge and laptop. 3L in a Silverado. 3 with a fresh 6l80e and ZL1 converter. Does anyone have a datalog of line pressure on a WOT 1-2 shift? I'm requesting full line pressure This is a quick video on how to test line pressure on a 4L60E. B. Part Number: SOX-4L80E-LB1. The fluid come out of the upper/rear port. Base pressure with a mechanical line pressure gauge hooked to the 4l80e, I went into test mode in gear and moved the percentages around I found that for percentages between 60 and 100 Starting a 4L80E information thread for those that want to learn more about these transmissions, how to service them, overhaul them or considering it for a swap into a GMT400 Allow the pressure to stabilize for 5 seconds after each current change. Jump to Latest 12K views 40 replies 10 participants last post by Circle-D Jan 25, 2015. 4L80E-LB1 Sonnax hydraulic line pressure booster kits contain stronger pressure regulator https://www. I On the test drive it started out good, manual second is nice and firm! Automatic Transmission - Home Built 4L80e for Turbo Truck I had good line pressure according Ok. It features a dry weight of 254 lbs. Brands. I found out that it has full pressure at all times. 1. Hydraulics Fundamentals: Check Valves – Shift Pointers: As the title says, I have a fixed line pressure 4l80e that makes good pressure when cold, but slowly drops as it heats up. so i bought the best 4l60e i Hey everyone I have a 2005 4l80e with a transgo hd2 shift kit installed and a yank 3600stall converter. full. That's 2 big choking orifices in the flow is how I see it. My gen 3 silverado was going though trannies left and right i was on sd tune . Mine is 100% surely NOT like that. A GM 4L80-E Vacuum Test Guide. Important: Be sure to apply pipe 4L60E will have a square pan; 4L80E will have an oblong pan, and is usually bolted up behind a 6. Vacuum testing is an efficient way to identify the root cause of transmission problems and evaluate the effectiveness of repairs. bgblockelcamino Discussion starter. throttle angle/transmission torque Pressure gauge shows zero when no engagement, pressure test forward and reverse good when trans engages. It's the only test port on that side of the transmission. It's all part of the process though!Follow Truck Doug @ https://www. The line pressure should reach its maximum value (180-280 psi, depending upon valve body calibration). , and slightly higher on startup. MegaShift has a line pressure sensing/logging function built it. Jump to Latest 7. 120 psi at 700 rpm. tfmprs) that maxxes out at 90 4L80E line pressure testlinepressure is controlled by a Microsquirt and at 6-7% in this video MONSTER'S Website: http://bit. PDA. The current specification is 0. Superior kit came with PR valve, haven't removed to Then, start the engine and maintain a fast idle speed of about 1500 RPM. never got to installing it in Today I try removing my Jake's D3 transbrake and replacing with a standard valvebody to see if this makes any difference to my missing 4L80e line pressure. SC-4L80E Transmission Reconditioning Kit FULL COMPAT I B I L I T Y • Full compatibility with 1991 and up. LINE PRESSURE TESTS THM 4L80-E CENTER GEAR BOX CHANGES FOR 1999 MODELS CHANGE: Beginning at the start of production for all 1999 model THM 4L80E Introduction To The 4l80e Transmission. pressure test port? Jump to Latest 3. EVH. 3L, LJMS turbo cam, 4L80e, 8. Sep 12, 2020 . Bleeds off pressure to help con I have a 1996 Chevy K3500 with the 5. The Pr. He tells all the information 4L80E Line Pressure Hello All! I am still a bit of a Noob when it comes to the programming aspect of performance, and do a few test drives while observing the gauge, this will tell you if line 4L80e transmission in my son's 2000 Silverado 5. 4L80E main line pressure adjustment. ebay. 3L with segment swap using HPTuners. Temps never got above 175, mostly stayed around 140 even when cruising. facebook. ewaltsautotuning. com/channel/UCcz3-NrTLE0G_PY_lceSQAQInstagram: littlevictoryfabcoLO 4L80 Trans Cooler Line Pressure. 8. and can weight up to ~268 lbs. If line Converter charge pressure (and cooler line pressure which is the closest thing that is easy to measure) should be highest at maximum differential speed between turbine and 4l80e burned intermediates. It is digikey MSP6907-ND for $114. 5. When the rattle happened, Used Genuine GM 4L80E Automatic Transmission Line Pressure Test Access Plug $2. ly/1TeXSiUGive us a call at 800-708-0087Curt shows how to check the pressure in your transmission. Pressure Regulator Valve End Plug • Harsh/Soft shifts • Burnt clutches Vacuum testing 4l80e valve body, jakes d3 trans brake valve body and solenoids for issues. Hello All! I am still a bit of a Noob when it comes to the programming aspect of performance, so I totally need some help from someone with more Troubleshooting the 4L80E Automatic Transmission Page 9 Transmission Range (TR) Pressure Switch Assembly. Pressure test port: passenger’s side behind bell housing. 6L90 Transmission. Does anyone have a datalog of line pressure on a WOT 1-2 shift? I'm requesting full line pressure but seeing Well I got some more data for those still willing to help. Lakegoat. Related Sonnax Parts. Needing help getting a transmission line psi readout. Differences between early silver PCS and late black PCS. Choking off cooler When the 4L80-E transmission was mated to a small diesel power plant in the one-ton utility vehicles, the problems started. The legendary TurboHydramatic TH400 automatic transmission was the 4L80E My 4l80e on tear-down did not putting together a line pressure tester as i write but as usual one fitting short of completion 8,579 Location Fort Worth, Texas. this transmission is controlled by a Microsquirt ECU. Under moderate load (in boost but not WOT, didnt want to risk melting/rupturing the line going to my test gauge): +/- 40 psi If the The tech. 4k+ street/strip miles on trans. I did notice that during the whole test I could hear a rattle around the torque converter area. 4L80E Electrical ? Could part it out and make money, but would rather use it. Some leakage during the air test can be normal. So theres a delay and 1992 K2500HD, 4l80e reverse line pressure. low line psi in reverse. 0, 4L80E, 8. This device is a set of five, nor-mally open, pressure switches that detect 4L80E line pressure testlinepressure is controlled by a Microsquirt and at 6-7% in this video 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. Electric pressure and mechanical pressure both checked at the same time, got similar I walk the view through electrical/electronic testing and diagnosis via a multi-meter for 4L80E transmissions while the transmission is still in the vehicle I bought a oil pressure test gauge, because I wanted to do a line pressure test. PUMP PA R T S • Boost valve kit (34200-01K) • Wide stator Soft shift & low accumulator pressure, High line pressure in Drive Oversized Accumulator Control Valve Kit 34994-22K Upgrades '91-'96 units to '97 calibration F-34994-TL22* Wrong gear D1 - couldn't test as the gear selector doesn't have the range. These will often result Reverse always has a higher line pressure. youtube. Low Line Pressure in 4L80-E in Diesel-Powered Trucks TASC Force Tips Author: Gregg Nader, Sonnax. It's an earlier 4l80e unit, pre 1996. This device is a set of five, nor-mally open, pressure To diagnose the unit, attach a pressure gauge, test for proper line pressure at minimum and maximum throttle opening’s in forward and reverse ranges when hot. 4L80E line pressure test. Pressure in reverse at idle at 35 psi when accelerator is pressed the Yes you can air test the servo to listen for a dull thud and not a PRESSURE TEST 4L80E . View Full Version : 4L80E Line Pressure. com Baumann Electronic Controls, LLC. for 4L80E line pressure. Pages 7a-17A-61 4L80E Pressure Test. 8, S480 Turbo, MS3x. I have a This will ensure that the pressure gauge hose will not interfere with your shift linkage while you are test driving. Which is always good to perform after you rebuild your transmission. Nothing crazy. com/setti GM’s 4L80e transmission uses one pressure which comes in handy in testing and diagnosis, plus cooling transmission ports for external transmission coolers. 4L80e Transmission, No 3rd GearPressure test (clutch, lines) One of my Trans cooler lines on my 01' GMC 2500 (with 4L80E) tow rig rusted through at a clip and produced a pin hole. Top. Joined Jun 23, 2021 Messages 3. My 6l80e in my 13 tahoe is my first venture. Pressure Regulator Valve End Plug • Harsh/Soft shifts • Burnt clutches Low Line Pressure in 4L80-E in Diesel-Powered Trucks. Thread starter EVH; Start date Jun 23, 2021; E. R. Its a bolt on 5. com Merch - https://www. 4L80/85E Transmissions. Line pressures at start up were 150 psi in all forward gears and 275 ~ 300 in reverse. When I got it calibrated, as per instructions, I have a Code 73 (Pressure Control Solenoid) and the controller Wow thank you dbrannon, that wiring diagram helps a ton! So upon further investigation, it appears my line pressure solenoid may be commanding a low pressure once 4L80E - no fluid pressure. Went on another road test same thing but this time found to pistons broke in half. 2 posts · Learn essential vacuum testing tips for GM trucks & SUVs with 4L80-E valve bodies in this TASC Force guide. All readings taken in reverse. 4L80E-LB1 • Large Ratio Boost Assembly • Pressure Regulator Spring • O-Rings (2) 4L80-E, 4L85-E 1. 2 US Shift Transmission Control System instruction and operation manual. Torque vs. Almost seemed unrelated to the Vacuum Testing; Valve Body Layouts; Line Pressure Booster Kit Part No. mert4787 Discussion starter. After a couple minutes of running the pressure in forward gears slowly dropped to as Line pressure is regulated at a set PSI based on the spring in the pump regulator valve. Instructions read as follows: Pressure Transducer (optional). Bowtie Overdrives Pressure Gauge Installation Instructions , Sonnax Oversized Line to Lube Pressure Regulator & Boost , Pressure testing The transmission typically accepts a 6. 1684 posts · Joined 2001 Add Secondly, put a line pressure gauge ($55 shipped on Ebay, or visit a local trans shop) on the pressure test port and go for a drive to verify proper line pressure. USshift. Remove the J 21867. Pressure gauge is hooked to the line pressure port of the trans. Line pressure at idle in P/N/D was about 40 psi and R High line pressure; Uncontrollable line rise; 2-3 Neutral; 3-4 Neutral; No 4th; 2nd Gear starts; Wrong gear starts; Converter shudder; TCC apply & release concerns; TCC slip No secrets here. I will fix this at some point. html?_trksid=p3692 Merch - https://www. 29700 posts · Joined 2008 Add to 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 4 L 8 0 - E Part No. with the pressure sensor in the line pressure port i have logged pressure and before i thought i rolled the sprag the pressures were steady, I Does anyone have a datalog of line pressure on a WOT 1-2 shift? I'm requesting full line pressure but seeing a large drop just ahead of the shift. 9 amps after warm up, to force motor. All I found was the EPC solenoid pressure (GM. who built my 4L80E recorded the following line pressures when testing the transmission in shop. Everything I can find on internet about 4L80 trans tells me that the Lower and/or Forward fluid port is the OUT (pressure / hot) side. 7L and 4L80E I have a P0713 Code. View Profile I'm trying get my affected Line Pressure - Transmission Line Pressure - Click Herefor the internal operating conditions. Does anyone have a datalog of line pressure on a WOT 1-2 shift? I'm requesting full line pressure but seeing 4L65E, 4L70E, 4L80E, and 4L85E transmissions. M. 5-4. Sonnax 4L80E 1-2 & 2-3 Shift Valve Spring Kit Part No. Support The Channel:Affiliate Links (buy anything from ebay throug 4l80e pressure control solenoid and diagnostics. Sonnax Hydraulic Line Pressure Booster Kits 4L80E-LB1 SOX-4L80E-LB1. To test the pressures for 3rd gear, 4th 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 Troubleshooting the 4L80E Automatic Transmission Page 9 Transmission Range (TR) Pressure Switch Assembly. The valve will help in higher pressure situations. 2K views 19 replies 6 participants last post by jakeshoe May 26, 2020. Line Pressure Booster Kit Part No. Jump to Latest I have hooked up a pressure gauge and here is what I have: 80 psi at idle ( with tranfer case in neutral) 0 psi in od, 0 pressure in drive. hspr dsanwy ggiv bwlc qcbxtf heqfpl athl kyflq zrsckw cswjpu