Will not go in gear

Tiny
84PARKAVENUE
  • MEMBER
  • 1984 BUICK ELECTRA
  • 2WD
  • AUTOMATIC
  • 163,000 MILES
THM2004R will make a little thump when trying to go in drive. Checked fluid lever hot in idle will only whine in reverse. What could be problem?
Thursday, April 16th, 2020 AT 12:45 PM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good afternoon,

It sounds like the front pump is whining from lack of fluid. This noise usually sounds like a power steering noise when it is low in fluid.

https://www.2carpros.com/articles/automatic-transmission-problems

What causes this is the filter is clogged in the pan and needs to be changed.

I would drop the pan and change the fluid and filter.

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission

Roy
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Thursday, April 16th, 2020 AT 1:10 PM

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