my 96 lumina fuel pump went out after changing it tried starting car. it backfired now runs extremely rough. suggestions?

Asked by righand420 Jan 01, 2013 at 04:01 PM about the 1996 Chevrolet Lumina LS Sedan FWD

Question type: Maintenance & Repair

4 Answers
200,965

dandyoun answered 11 years ago

For your sake hope this ain't it but if yours is fuel injected and has a plastic intake manifold and backfired thru the intake you probably have a cracked intake manifold now. I learned this myself the hard way when one of mine backfired thru the intake. Hope this helps but also hope this is not your problem.

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aztec626bf answered 11 years ago

As dandyoun mentioned....to check for this you can use can of either and spray around manifold while running if you find a leak you will notice increase in rpm for a moment. What happens if you give it gas when you have it running?

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