2004 Cadillac DeVille Q&A
2004 Cadillac DeVille Question: Idle and Accelerator problems.
On occasions mostly when cold, the engine fails to idle and died on several occasions. Proper idle RPM is approximatley 650. On other occasions when hot, the engine wants to idle at 850 RPMs, which is too high. Also it seems that when rolling down the road and I took my foot off the accelerator, the RPMs stayed too high, as if the Accelerator were sluggish or sticking. On occasion at low speeds, I had to keep my foot on the accelerator to keep the RPMs up so the engine would not die. - philipj
The idle air control valve may be sticking on your 2004 Cadillac DeVille causing an erratic engine speed. Another possibility would be an intake manifold vacuum leak from the seal between the throttle body and the intake manifold. Proper diagnoses will be necessary to determine the cause of your idle problem. Please use the following link to find a repair shop near you - http://repairpal.com/directory?address=95060&car_brand_names=Cadillac. - Oakman
Not all the time but when I start the car the engine is racing on its own without me putting my foot on the accelerator.I can be at a stop sign and all of a sudden the engine begins to race and if ...
and apply the brakes. I experience rough idle until i start driving again.
when turn off ignition gas pedal goes to floor then up really fast for at lease twenty times or more, by itself while driving car will speed up and will not idle down when I bring the car to a stop...
when I am moving the oil light goes out . Either when accelerating or just coasting. when I stop at a light or to park the oil light comes on again. Could be head gasket huh?? Had oil changed and t...
Fuel injectors can short-circuit electrically causing a rougher than normal idle and reduced performance.