Question about 1991 Pontiac Firebird

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Engine runs good till heats up a bit then seems like it runs on 7 clylanders and engine light comes on

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What engine does your Firebird have? Attach a computer scanner and retrieve the fault codes from the engine. This should tell you where the problem lies. If it's an ignition problem, it should also tell you which cylinder has the problem.
Charlie

Posted on Jun 15, 2009

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Posted on Jan 02, 2017

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