While driving the transmission stopped working?

Tiny
DUBEZ
  • MEMBER
  • 2001 GMC YUKON
  • 5.9L
  • V8
  • 4WD
  • AUTOMATIC
  • 200,000 MILES
It was explained to me that the truck was just driving along, then nothing, no gears no drive or reverse nothing. Leading up to it doing this not slipping in or out, not low on fluid didn’t get hot was not pulling anything just went out of gear? Mark
Tuesday, October 29th, 2024 AT 4:44 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,490 POSTS
Yep, I have seen the input shaft break, or the front fluid pump go out inside the transmission, but I would run the codes to see if any come up. I would see if the reverse lights come on to check the gear range sensor.

Here is a guide to help:

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

It sounds like the transmission might need to be rebuilt. Please go over this guide and get back to us.

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Wednesday, October 30th, 2024 AT 11:18 AM

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