Rick's Free Auto Repair Advice

Posts Tagged: rough idle when warm

Rough idle when warm

What causes a rough idle when warm If your car starts fine when cold but has a hard time starting when warm or has a rough idle when warm, check out these possible causes A Vacuum leak can cause rough idle when warm Why would a vacuum leak cause a rough idle when warm but not cold? Simple. When you start a cold engine, the computer commands a rich mixture and a high idle, so a small vacuum leak has less effect on the engine. Once the engine warms up … Read More

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