1995 Ford thunderbird...Transmission will not upshift from 1st to 2nd gear unless you shift it manually. Any ideas what could be causing this?

David Pursell

Asked by Oct 02, 2014 at 04:57 PM about the 1995 Ford Thunderbird LX

Question type: Maintenance & Repair

1 Answer


It doesn't happen ofter, but it could be a defective modulator valve. Have it checked and also check the vacuum lines for the transmission

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