Why is my GMC Yukon not shifting into 3rd gear?
Driving at speed and the transmission suddenly started slipping while in OD – engine RPMs started racing, pulled to the side and dropped speed. 1st and 2nd gear are fine, but the tranny won’t shift into 3rd. Pulled off at the next exit, found a quick lube station, the tranny fluid (which had about 25 K miles on it) was scorched.
Are there transmission problems in GMC Yukon XL?
Took the truck to an independent mechanic who specializes in transmissions and performance shop work. Upon disassembly, he found the 3 / 4 drum was burnt up. According to him, everything else in the tranny looked “pristine” – no dirt, sludge, or signs of wear or abuse.
Why is my speedometer not working on my GMC Yukon?
It is probably your Vehicle speed sensor. It is mounted on the tailshaft of the transmission and is held it with one small 8 mm bolt. Your speedometer wont work right and it will probably shift wrong or wont shift at all because the transmission relies on the speed signal to know when to shift. The tahoe/yukon use the 4l60e transmission.
When did GMC Yukon SLT need to be replaced?
I got a 2002 yukon slt with a 4L60E tranny that had to be replaced around 85k miles. Im the 2nd owner and purchased when it had 67k miles. Previous owner stated they never used 4WD.
What to do when 2.1-2 shift does not happen?
2. 1-2 shift does not happen at WOT (Wide Open Throttle) until you let off the gas: Best case: try replacing the TPS. Middle case: leak in the 2nd gear apply circuit (servo assembly or 1-2 accumulator). Double check by using the pressure gauge and watch for a big drop when the PCM commands 2nd gear.
Why is my transmission not shifting to third gear?
If you ignore the signs for too long, it could lead to a possible failure of the transmission. Let’s see what could be the reasons for the auto gearbox not to shift from second gear to the third. Overheating could be a reason for the gear to stick and the low fluid level is the culprit for making the transmission overheated.
Why is my Trans bad on my 4L60E?
Trans seems noisy when moving in 1st and Reverse, noise goes away instantly if you shift to N or the transmission goes into 3rd gear: Reaction planetary is worn out due to high miles or insufficient lubrication. Not a critical failure, but not a good sign either.
What should I do if my transmission is slipping?
After adding the fluid, I suggest that while the car is running, you move the shift lever through the different gears on the shifter selector, and then check the fluid again. Running the shifter through the gears redirects the fluid to different parts of the transmission and removes the air pockets.
Where are the vent tubes on a GMC Yukon XL?
Installed a new GM trans and Engine into my 2002 XL Denali over the weekend and when hooking everything back up was confused about the vent line routing. There are 2 long vent tubes that go on the back of the transmission and it looks like one just ends to the open air.
Can a slipping transmission be a solenoid problem?
Do not confuse a slipping transmission with a solenoid problem. You will hear and feel the difference when you try to shift. A slipping transmission will actually shift, but then not produce any power once in gear, whereas a bad solenoid will prevent the shift from occurring in the first place.
Is there a transmission defect in a GMC?
An alleged GM transmission defect has gained more coverage as more owners complain of the issue in Chevy pickups, GMC vehicles, Cadillac sedans, and sports cars. Sign In
Why does my Silverado Sierra jerk at high speeds?
If you hammer it down, the truck smooths out. It appears to only happen durring light acceleration and at higher speeds. The best I can do to explain the jerking is that it feels as if is missing or being starved for fuel and about to run out. There are no check engine lights on in the truck.
Where does a transmission shift solenoid mount on a transmission?
Your transmission shift solenoids mount on the transmission valve body that controls fluid flow through the various circuits and passages in the transmission.
What’s the problem with Yukon Denali XL transmission?
The vehicle would only allow us to drive 30-40 MPH but would be stuck in 6th gear. Shifting gears extremely fast without accelerating fast. Once the transmission was replaced, within 13 months the same problem happened again.
Driving at speed and the transmission suddenly started slipping while in OD – engine RPMs started racing, pulled to the side and dropped speed. 1st and 2nd gear are fine, but the tranny won’t shift into 3rd. Pulled off at the next exit, found a quick lube station, the tranny fluid (which had about 25 K miles on it) was scorched.
What was the problem with my GM Yukon?
They first said it was bad fuel, so they cleaned the whole fuel system, checked the fuel and that wasn’t it. Then, they said the torque converter was locking up. After a week in the shop and numerous calls to GM, they figured out that there was water in the transmission.
Installed a new GM trans and Engine into my 2002 XL Denali over the weekend and when hooking everything back up was confused about the vent line routing. There are 2 long vent tubes that go on the back of the transmission and it looks like one just ends to the open air.
Where did my GMC Yukon XL transmission go bad?
My wife and four children (14,11,4,&3) stopped for lunch in a small town called FairPlay, CO. We loaded back up started back out on the road and lost of transmission function in forward and reverse. Turned our 2005 Yukon SLE off and waited for a few minutes and transmission started working again.
I got a 2002 yukon slt with a 4L60E tranny that had to be replaced around 85k miles. Im the 2nd owner and purchased when it had 67k miles. Previous owner stated they never used 4WD.