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Not shifting correctly

Tiny
MRSAMMESSE
  • MEMBER
  • 1997 BUICK REGAL
  • 3.8L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 129,974 MILES
GS model. It over revs while driving. I end up having to manually shift it myself. When I put it into park it still wants to roll. The only way to park it is to engage the parking brake.

Transmission has never been replaced and no leaking.

Have not tried anything. Not sure if it is the shift solenoids or torque converter.
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Wednesday, August 22nd, 2018 AT 7:14 AM

1 Reply

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Good morning.

I would start by changing the fluid and filter.

Are there any codes in the system? The throttle position sensor controls the shifting points of the transmission and that is why I am asking about any codes.

Does the transmission selection on the indicator line up correctly?

Roy

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

https://www.2carpros.com/articles/how-to-service-an-automatic-transmission
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Wednesday, August 22nd, 2018 AT 8:04 AM

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