Having problems with your 1998 Cadillac DeVille ?
1993 cadillac deville 4.9 300ci. cars engine surges occasionally at random times only at low speeds. shut the car off and back on its fine. replaced fuel pump filter throttle sensor.
Mcdevito75 Here, The air idle sensor / motor could be faulty, Oxygen sensor in the exhaust system could also be faukty, Have your shop run a scan.
Repair Help & Product Troubleshooting for 1998 Cadillac DeVille
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