Transmission shifting hard

Tiny
BETTY LOUISE RATCLIFF
  • MEMBER
  • 1990 CHEVROLET S-10
  • 4.3L
  • 200,009 MILES
What are the most likely causes for my truck to start shifting hard?
Monday, July 9th, 2018 AT 10:58 AM

1 Reply

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

Some possible issues.

1. Transmission fluid dirty and filter clogged.

2. TPS sensor voltage not correct giving wrong shift points.

3. Shift vales in the valve body sticking from dirt and debris.

4. Accumulator springs broken.

All these need to be checked.

Roy
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Monday, July 9th, 2018 AT 11:04 AM

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