1991 Ford Crown Victoria Cold Transmission Wont Upshift Until Warms Works Fine

1991 FORD CROWN VICTORIA
90,000 MILES
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ANONYMOUS
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  • 1 POST
When COLD the transmission wont upshift until it warms up then works fine.
Mar 9, 2013 at 2:41 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
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
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