I just had a slight increase in rpm. Still get 68 for code. Almost scary hard, depending on what rpm you hit it at. Now here is the kicker. Has anyone encountered this type of trans. My wife and I could have been seriously injured by the failure of the vehicle to stay in the parking gear position automatic transmission.
After driving a while,the smallest incline will cause transmission to downshift,losing speed,and the engine overrevs. The only way to know for certain is to follow the diagnostic procedure as outlined by General Motors. Once the repair was made under warranty. Insall new tps please help chuck 10-5-09 4L80E automatic trans. In overdrive It drives great, as if theres no problem what-so-ever. The computer will then start the entire sequence again beginning with code 12.
I need help with this r armstrong 4-15-10 2001 bently red badge wont select reverse when hot have to rev motor to get it to engage Leonard 9-14-09 Trans was shifting hard in all gears, removed and rebuilt, now it is stack shifting. To get maximum force on the turbine vanes when the moving fluid strikes them, the vanes are curved to reverse the direction of flow. If it does not flash a code 12, refer to the car's service manual for further tests. As I turn the key on then to start then to run I had no voltage in the cranking mode. Usually will not pop out if backing up on a level surface. When the lock-up valve moves, the rubber hose should jump slightly.
Chock the drive wheels and apply the parking brake. The contact stated that while driving approximately 45 mph uphill, the transmission independently shifted down. The current and failure mileages were 67,674. This is obviously a defect, as I have 3 other chevy trucks, none of which have ever leaked from the trans lines, and some are over 10yrs old. When it goes out the steering and brakes fail and make it very hazardous to continue requiring me to stop and have some one pick up my truck and haul it home. Now it happens whenever it wants.
This has been a very common occurrence reported by other owners which can be easily verified through numerous online forums. Welcome to The Truck Stop! I searched online and found hundreds of similar complaints. Code 34 will show as three flashes followed by a pause and then 4 quick flashes. We got as far as finding out it's not electrical. Its a 93 Suburban 4x4 8 lug 2500. This lead to the washer breaking up into little pieces, which would jam the direct piston, thereby damaging it and the direct clutch.
When the duty cycle is 40%, line pressure is at minimum, and force motor draws 1. What usually goes out on these is it a drum problem or should I be looking more at the valve body? Transmission is having issues that dealer cannot seem to fix. Most of the problems are electronic in nature and are relatively easy, but expensive, to fix. Ty Paul Carter 12-19-08 I have a 1994 G30 van with a 4L80E transmission. Help Jeremy 3-21-13 I have a 1996 Chevrolet 3 quarter ton truck with a 5 speed manual when I put it in third gear, the third gear keeps popping out, I can slow it down to 45 miles an hour in third gear it will slow down just fine until I get about 15 miles an hour or less then It will start grinding charles peters 10-12-12 I have A 1997 K3500. I also put a pressure gauge and found the trans pressure too high. Sometimes after its down shifted, it falls out of gear and does it again.
Jim Loveless 10-17-08 1993 C3500,105,000 miles. So every time it did it we'd take it apart, try cleaning though it always looked good, treak the terminals a little, think we would have it and it would work for a while. This is the response I got from three dealerships. Any idea as to what the problem could be or what the cause of this issue is? Note: If your foot is on the brake the light will be out. If I switch over to a standard- will a 1993 Getrag 5 speed 4x4 work? I did greatly enjoy knowing there is a actual fix and at least one guy knows how to really fix the problem. Rev, 1,2 and 3rd shift fine but no 4th or od. I've already been through several eliminating procedures.
I do agree automatics do have a few advantages but they cost way to much to pay to be repaired and I'd need a lift to change one while a manual only needs to be up on Blocks to fit under it. It wont go into reverse but forward gears are fine. At 45 mph i heard a whining loud sound coming from engine compartment. Thanks Dan 4-10-09 Trans stuck in forward all times. And it's no secret why.