1990 Chevy Corsica

Tiny
JESSEBWRIGHT
  • MEMBER
  • 1990 CHEVROLET CORSICA
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 106,000 MILES
The car sat for 3 years, it will not shift past third gear, and the speedometer will not work. The one time it shifted through overdrive, the speedometer worked correctly. Could the modulater valve be the problem?
Wednesday, August 19th, 2009 AT 5:04 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
I would check and see if the spped sensor is working as it runs the spedometer as well. If the computer doesn't read any speed it won't let it shift. It could be a modulater as well or a broken/pinched vacuum line leading to it.
Was this
answer
helpful?
Yes
No
Tuesday, September 29th, 2009 AT 6:59 PM

Please login or register to post a reply.

Sponsored links