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got a P0787 trouble code

5K views 2 replies 2 participants last post by  Chevyman0714 
#1 ·
i got a P0787 trouble code transmission will shift to 3 gear but wount go into over drive any help on this please
 
#2 ·
:welcome to C'Fans.

It would help if we knew what model year and what engine you have.

P0787: 3-2 shift solenoid control circuit low voltage.

Could be a defective solenoid (located inside the transmission), a wiring problem, or (rarely) a defective TCM or PCM depending on the year of your truck.

Check the wiring/connectors for the transmission. Look for a round 20 pin connector. Some guys have had problems cause by rodents chewing on the wiring.
 
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