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

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

Question type: Maintenance & Repair

1 Answer

5,975

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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