popping noise


Old 09-20-03, 03:34 PM
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Question popping noise

I have a 86 buick century with a 2.5 ltr eng. There seems to be a loud pop or snapping noise coming from around the fuel injector. This pop or snap sounds almost like an arcing wire but I checked all the plug wires and they don't appear to be the culprit. Any ideas or help would be great.
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Old 09-20-03, 07:52 PM
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Any exhaust or vacuum leaks? First place to start.
Old 09-21-03, 07:59 AM
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no vacume leaks and not 100% positive on the exhaust leak but fairly certain there isn't one.
Old 09-21-03, 08:16 AM
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the 2.5L engines were and are notorious for cracking the thin cast iron exhaust manifolds.
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