94 CONCOURS 100,000 MILES, 4.6 NORTHSTAR

1994 Cadillac

Tiny

sarastiles

June, 27, 2007 AT 9:18 PM

My husband's Cadillac Concours runs great until it warms up, (approx. 10 minutes drive time) then it fails to shift beyond 3rd gear. The fluid level is fine and no burning odor.

This happened on the highway without any prior warning. I managed to get it home by stopping for breaks to let it cool back down so I could go another 10 minutes. It was a slow ride home!

The message readout didin't indicate any problems and when I start the car it says everything is OK.

The local transmission shop said the problem is probably internal and quite costly. What does this mean? I'd appreciate another opinion.

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1 Answer

Tiny

Jack42

June, 29, 2007 AT 8:05 AM

Could be an internal problem in the trans. Try a different trans shop and have then scan the PCM or run through the on-board diagnostics. The PCM should have stored some kind of code if it wont shift

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