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Transmission had no reverse and had a whining sound?

Tiny
MERYLMCGIVERN
  • MEMBER
  • 1999 CHEVROLET TAHOE
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 370,000 MILES
Was on the highway came to a stop. Accelerated and heard a strange noise. Slowed down at the next turn the first gear wouldn't change until 3,000 RPMs. I pulled over cycled through the gears 1, 2, 3, and drive worked along with neutral, but reverse did not and had a whining sound.
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Thursday, September 15th, 2022 AT 5:48 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

Have you checked for diagnostic trouble codes? Is the fluid clean and full?

As far as the issue, can the vehicle be driven in drive and all forward gears work?

No reverse can be caused by a number of things. I attached a list below for you to review. As you will see, there are several. That is why we need to check for codes.

Let me know if you have any questions.

Take care,

Joe

See pic below.
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Thursday, September 15th, 2022 AT 7:33 PM

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