Questions & Answers for: 1991 cadillac deville running rough

...cadillac sts idles very rough it only happens when the car is in drive and the a/c is on. with the a/c off the car runs fine. any ideas? if it idles rough when air con is turnd on ur idle my be ...

...1991 cadillac devile(4.9) runs great when cold,but after it warms up it starts to run rough. No engine lights come on dash indicating a problem. I have also changed the air and fuel filter. the car ...

1991 cadillac sedan deville its a v8 the guy im buying it from said it was running a little rough so he took it to a mechanic and had platinum plugs new wires distributer cap all put on it but i guess

1991 cadillac sedan deville its a v8 the guy im buying it from said it was running a little rough so he took it to a mechanic and had platinum plugs new wires distributer cap all put on it but i guess

but engine after running a few minutes runs rough worst on idle, but roughness can be felt on the road also I had same problem, and found the problem again in egr, replaced it under warranty and bingo

...rough A idle speed motor will not cause your engine to run rough.It might idle high or stall. If your engine is running rough check your spark plugs and wires along with your cap and rotor

deville is running really chuggy and sputers,we chnged plugs wires,and it still ideles high and rough any suggestions would be appreciated : ) the car only has 73000 actual miles and i hate to get rid

...and rough when cold. Improves when it warms up. Mileage around town is terrible. Not using oil but front plugs shows signs of running too rich. have the intake air temp sensor checked by a ...

1991 Cadillac Sedan Deville idling rough Starts and runs fine as long as you don't stop. Once you stop and let idle for a couple of minutes the engine light comes on and the engine begins to ...

...Cadillac deville is running rough because my barb or intake could be stopped up how do I clean it and is it a good idea to take the Cadillac convertor off and straight pipe the muffler You have fuel ...