why does my car have the sound of a diesel when it idles when the car runs on only gasoline?

Asked by Dec 19, 2006 at 09:14 PM about the 1997 Chevrolet Cavalier Coupe FWD

Question type: Maintenance & Repair

when the cars engine is warm at normal operating temperature it sounds like a diesel when it idles but only when th eengine is warm!

1 Answer

19,185

There are a few possible reasons for problems when the engine is noisy when warm. Among them: 1. Your engine oil may be too thin or has mixed with gasoline. To solve this, change the oil and filter. Make sure you are using the recommended oil. 2. Clean and tighten battery cables. They may be loose or dirty. 3. Battery cables are bad: Replace the battery cables as required. 4. Your starter may be overheating.

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