What are the most likely causes for my truck to start shifting hard?
Jul 9, 2018 at 10:58 AM
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ASEMASTER6371
CAR REPAIR CONTRIBUTOR
52,796 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.