Question about 1986 Cadillac DeVille

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Transmission not shifting past 40mph

I have an 86 cadillac sedan deville that it won't go past 35 or 40mph what can the problem be? and will that affect when taking a smog test?

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  • jman415 May 09, 2009

    chris do u think it might be the governor too? might that be a possibility??

  • Anonymous May 09, 2009

    MINE WILL GO PAST THAT ,BUT WON'T SHIFT OUTTA SECOND PAST 25 MPH.IS IT A REBUILD PROBLEM?

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Either modulator valve on transmission or intermediate and high gear band is worn out or vavle body is dirty.this should not affect smog test results..chris

Posted on May 09, 2009

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