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Car backfires when I accelerate too fast.

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Anonymous Poster

Mar 7, 2007, 7:22 PM

Post #1 of 4 (682 views)
Car backfires when I accelerate too fast. Sign In

Hi . I have a 92 Chevy Lumina with a 4 cyl engine. When I accelerate too fast from a stop or kick it down on the highway it sounds like its backfiring from the engine compartment. If I feather the gas it drives fine but the moment I kick it down even a quarter inch it backfires and bogs down. Sometimes the engine shuts off completely. Anyone have an idea as to why this might be?


Mar 7, 2007, 10:54 PM

Post #2 of 4 (677 views)
Re: Car backfires when I accelerate too fast. [In reply to] Sign In

Sounds like a bad ignition wire to me. Being it's only a 4 cyl. it wont cost much to replace the plugs and wires. Give it a shot and let me know how it goes.

Anonymous Poster

Mar 8, 2007, 6:13 PM

Post #3 of 4 (673 views)
Re: Car backfires when I accelerate too fast. [In reply to] Sign In

Ok I put in new plugs. The old ones were very rusty and I'm sure they were the original plugs installed on the car. I broke a couple of them trying to get them off. The car seemed to run a little bit better at first but after a couple circles around the block it started doing it again. Wires you say. Ill try those next. I hope that works but if it doesnt . What else might you suggest?

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way2old profile image

Mar 8, 2007, 6:17 PM

Post #4 of 4 (672 views)
Re: Car backfires when I accelerate too fast. [In reply to] Sign In

You might want to try a fuel filter also. If there is not enough fuel getting to the engine under hard acceleration, it can cause the backfire.

Being way2old is why I need help from younger minds


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