1991 FORD CROWN VICTORIA
90,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
When COLD the transmission wont upshift until it warms up then works fine.
Mar 9, 2013 at 2:41 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
If there is no check engine light and the trans fluid is clean and full, chances are the seals in the valve body are getting hard. Try a shift additive to see if that helps.
Mar 9, 2013 at 2:47 AM