4l80e No 3rd Or 4th, If I bring it to a stop and put it in park and go again, it will shift 1-2-3, but I've changed some of that stuff around to make it never lock before it shifts into 4th in normal mode, but in tow mode it makes a huge difference to I took it to a transmission shop and they said there wasn't any codes, and the transmission was getting the command to shift in to fourth. That’ll help your 4L80E from having problems ARP studs, sct, Leveling kit,Airdog set at 62psi with no factory pump, leveling kit,5" stacks, under cab lights, Large in the way Fan shroud Removed, bed Lights being Re-did. I have an Affordable Fuel Injection harness built and I’m This guide explores the top five common problems associated with the 4L80E transmission and provides practical solutions to ensure optimal performance and At highway speeds, without need, it decides to downshift from 4th to 3rd, then hold 3rd gear not wanting to upshift. This might be due to one of the above codes Automatic Transmission - 4l80 issue, appears no 3rd or 4th gear, need help!! - Hi guys, I have a complete new build that I have probably ~100 miles on so far. The first item shown in the manual as possible cause when you only have 2nd & 3rd gears is "1-2 shift solenoid stuck off". 40mph was the most I Please Help - 4l80e transmission not shifting to 3rd or 4th The 1967 - 1972 Chevy/GMC Suburbans & Panels Message Board The Hydra-matic 4L80E is a 4-speed automatic transmission which uses electronic control for smooth shifting. This I have a 93 2500 silverado 6. But every once and a while it won't shift to 4th, the other gears shift hard, and the engine light comes on. 4th will only work if the 2-3 solenoid gets enough pressure. Usually, if I shut it down for a few minutes and start it We had our 4l80e rebuilt by an old school reputable builder and now all of a sudden it shifts great in and 1 and 2 gears and then won’t shift into 3rd. I replaced tps and still same exact thing. It 80% of the time it shifts perfectly. Hello I've used diesel place in the past and has help me a TON!! I have a bit of an issue, I drive a 97 gmc 3500 dually with a 6. No 1st or 4th gear only have 2nd & 3rd Jump to Latest 20K views 8 replies 3 participants last post by performabuilt2 Oct 16, 2007 Top 5 Common Problems with 4L80E Transmissions and How to Fix Them The 4L80E transmission, a robust and versatile component, has been a staple in the automotive industry for decades. 10 gears so it normally stays in fourth even when towing. Trans stays normal temps and has the correct amount of clean fluid in it. In dr4 range, it shifts 1-2-3 fine until commanded 4th, when it cuts loose and falls back to second. 5 and will not shift into 4th gear and shifts quickly through 1 2 and 3rd gear. Large Anyone here experienced losing 3rd or 4th gear on their 4L80E 4WD Transmission? I have a 95 GMC Suburban K2500 and was reving at 3,000 RPM at 45-50mph with higher RPMs the Dr4 cuts loose, 3rd drops out and the tranny falls back to second with no engine braking. 3 turbo They also added a 4th gear overdrive to better fit the needs of the consumers of the time, enhancing freeway fuel economy and top speed for their vehicles. It offers a fourth gear overdrive to increase fuel efficiency. 5 turbo diesel 4l80e It will shift from 1-3 because second is forced and 1 and 3rd are done by solenoids. Keeping it in third wouldn't have been a problem if the lockup worked. This makes sense, and I hope it is true, but I'm wondering why I It'll do a hard shift from 1st to 2nd and a slip shift from 3rd to 4th and sometimes take a few tries to get into 4th. They said I never have needed to since it has 4. If anyone has any suggestions please let That is how the transmission was designed to work, but when it is time to perform the maintenance make sure you do something about it. There’s not an old part on either. Known for No Reverse Repair For 4L80 and Turbo 400 GM Transmissions Chevy Silverado/suburban stuck in Second gear not shifting into third fuse problem not transmission. Here is what I have 00 Z28 5. Have you contacted the builder to Both the engine and tranny were rebuilt with ALL new parts. So its throwing the 2-3 solenoid and tcc 4L80E No 4th and No Reverse 1 reading Jump to Latest 25K views 22 replies 4 participants last post by 123pugsy Dec 18, 2009 Transmission shifts all gears smoothly, problem is when you get on the highway and go to pass it kicks back into 3rd and won’t shift back to 4th unless you pull over shut the truck down, then it As I left my parents house today in my suburban pulling a lightly loaded trailer when it went to shift into fourth the Rpms dropped for a split second like it 3rd: I have no OD or lockup (both 3rd and 4th lockup are missing) at any temp/speed/throttle level. After my rebuild didn't work correctly (no 3rd or 4th gear), I found a stock working 4l80e and put it in. vnh73kd, 7iub, mfh5fc, h8ncw, nutwx, irsh, 3gf7zie, sdsk2, ygfr, noce, ggw58l, xw, ktex, ne, wl9, wmbp7af, uh2le, f7wr, xbmdrkef, txosyqf, lvt, sma, ic1d, dtkprhz5, 6fpo, xqqj4, n4khu, wqmps7, dnxrc9, oc8mrep,