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Seems like the vehicle up shifts too early and sometimes

Tiny
RON FINNERTY
  • MEMBER
  • 1995 CHEVROLET LUMINA
  • 3.1L
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 118,000 MILES
Vehicle up shifts too early and sometimes it feels as if it misses a gear, has same issue down shifting when coming to a stop. Can manually shift with no problems. Have no transmission leaks and recently serviced transmission due to this problem. Replaced fluid, filter, and solenoid, no difference.
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Friday, January 13th, 2017 AT 11:04 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,349 POSTS
Hey RON,

This sounds like you are having a problem with one of the shift solenoids. Drop the pan and remove the wires to each solenoid, then test the resistance through each of them. You are looking for one of them to have a way off reading compared to the rest of them. That would be the bad one and needs replacement.

Please run some tests and get back to us so we can continue helping you.

Best, Ken
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Friday, January 13th, 2017 AT 11:29 AM

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