Question about 1992 Ford F250

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I have a 1992 F250 w/ 7.3 Diesel engine. Sometimes when driving along with the transmission in OVER DRIVE with everything working as it should, the Tach needle will bottom out then start going all over the place! It goes from 1 to 5 back to 3 & up to 5 then back to 1, etc. When the Tach goes crazy, the transmission seems to go into NEUTRAL and will not go back into gear until I downshift to 2. Once the transmission re-engages, I can put it back in OVERDRIVE & it will run fine for a while. Then the Tach starts fluctuating all over the place, and HERE WE GO AGAIN! Is the problem in the Tach or the Transmission?

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THis is a problem with your VCC gear in your transmission.

Posted on Mar 18, 2011


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