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A misfire code on a 1999 Chevrolet Suburban can be caused by several factors, including faulty spark plugs or ignition coils, which lead to incomplete combustion. Other potential causes include clogged fuel injectors, low fuel pressure, or vacuum leaks that disrupt the air-fuel mixture. Additionally, issues with the engine's compression or a malfunctioning engine control module (ECM) could also trigger a misfire code. Diagnosing the specific cause typically requires a thorough inspection of the ignition and fuel systems.

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1mo ago

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