Gear box problems
Gear box: It is the place where the different "gears" of the cars are located.
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More specific problems:
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Top problems
The shifter wires
GMC Yukon 1995 Yukon 2 door 4x4 632 miles
The shifter only goes into gear when It doesnt have wires conected
Won't accelerate past 1st
GMC Yukon 2005 SUV 186000 miles
Car still drives, but it won't accelerate past 28mph. All gears work, but just won't go past 28 mph.
2 reports
Accelerates when you gently touch pedal but press harder and it bods down.
I appreciate your help, but that doesn't work either. I can press the gas down slowly and it will take off slowly, but when its hitting 25mph you can feel it won't go faster than that. I have also tried a more ruthless approach and more aggressively give it gas, it still does produce any new changes. Any other suggestions before I scrap it?
CommentSurging then dropping out of gear
GMC Yukon 2001 5.3l v8 2wd 300000 miles
Cold start it runs and drives fine. After it warms up,starts surging at normal speed. Within 3 to 5 miles after cold start up it will drop out of gear. Pressing gas pedal, engine revs but no response transmission. Let it coast til speed and engine rpms seem to feel like 2nd or 3rd gear. Pushing gas pedal at this point the truck is in gear and drives shifting gears until reaching around 55mph then drops out gear again. I have replaced shift selonoids, transmission speed sensor and transmission filter. Cleaned maf sensor. Obd2 says knock sensor 2circuit bank 2
1 report
Most likely the problem is with the torque converter. It seems to be worn out in these cars. The torque converter usually wears out after 250,000 kilometers.
CommentSwapped transmission & now will not shift pass 1st gear
GMC Yukon 1997 Stl 5.7 4x4 250000 miles
I swapped my 4l60e with a 4l80e & now it will not shift past 1st gear, y?
Transmission
GMC Yukon 2001 5.3 liter, SLT, 4x4 XL 1500, white 230000 miles
Won't shift into drive full of fluid
7 reports
TCMB Fuse is not in the spot where it should be...
GMC Yukon 2006 6.0 Vortec 250233 miles
When in over drive it won't shift to 3rd from 2nd, the same thing when in 3rd...
First and 2nd are cool
First and 2nd are cool
11 reports
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