Cadillac Forum - Enthusiast forums for Cadillac Owners - Car wants to stall runs rough when warm

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- - Car wants to stall runs rough when warm (https://www.cadillacforum.com/forum/cadillac-deville-15/car-wants-stall-runs-rough-when-warm-5642/)

scottncincy

03-22-2008 10:21 PM

Car wants to stall runs rough when warm

Runs rough and wants to stall when it gets warm replaced many parts can the catalytic convertor be clogged ???? runs fine for about 10 minutes and under loads ( uphill ) really struggles

Lithorian

03-22-2008 10:41 PM

RE: Car wants to stall runs rough when warm

what car.....

scottncincy

03-23-2008 10:55 PM

RE: Car wants to stall runs rough when warm

Its a 1994 Sedan Deville 4.9 ltr 130,000 miles

brougham1

03-24-2008 10:28 PM

RE: Car wants to stall runs rough when warm

I would first check the EGR valve both for function and for carbon build up, then test the engine temp. sensor for functionality.

Lithorian

03-29-2008 05:34 PM

RE: Car wants to stall runs rough when warm

check the fuel pressure regulator for leaks as well

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