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Q: multifire on 2001 Buick LeSabre

have according to a mechanic and a parts store according to their small hand held computer i have a multi mis fire i did what they suggestewd new wires plugs also switched the coil packs but no change it happens spoiradically , engine acts if it stops and jerks and starts running smoovely
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a free code pull never identifies part failure, just sysem failure.

a muti missfire could come from a few things. a crank sensor, injectors clogged or faulty, vacuum leaks.
you need a real shop for a real diag to pinpoint the issue and give you a bid. replacing the plugs and wires is a good start but a guess at best that did not fix it.

for a list of shops in your area, click on the directory tab at the top of the page.

thanks for using repairpal.

Roy
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