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Trust My Mechanic

Your Free Car Repair Advice and Auto Repair Help

Backfires and Engine Misses

Austin Davis, October 29, 2006September 27, 2014

My car recently started sputtering, as if it was running out of gas, with an occasional backfire. This occurs when the car is heated up. By that, I mean at running temperature. The Check Engine Light also came on not long after. I took a friend’s advice and put dry gas and fuel injection cleaner in the tank hoping to solve the problem. Well, it hasn’t. I’m a nervous wreck because without transportation, I can lose my job. Do you have any advice? Thank you for listening…

Sincerely,
Heather from PA

Hello there Heather,

Thanks for the email. Two things come to mind and I would want to inspect if you were at my shop.

1. Check the spark plugs AND the spark plug wires for wear, replace them as needed especially if there is more than 50,000 miles on them since they were last changed. That s basically a tune up.

2. Check fuel pump pressure lack of proper fuel pressure can also cause symptoms like you describe, but not as easy to test yourself as the spark plug wires are.

Keep me posted as to what happens.

Blessings,
Austin Davis

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