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What is random multiple misfire on 2008 Chevy Tahoe?

Anonymous

∙ 10y ago

Updated: 10/26/2022

The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Start by checking for intake leaks, intake gaskets are a common cause of multi-cylinder misfiring. If no leaks are found the next step is to replace the spark plugs. If the problem persist more tests needs to be done to diagnose problem.

Possible causes,
Faulty spark plugs
Faulty ignition coils
Clogged or faulty fuel injectors
Intake air leak
Fuel injectors harness is open or shorted
Fuel Injectors circuit poor electrical connection
Ignition coils harness is open or shorted
Ignition coils circuit poor electrical connection
Insufficient cylinders compression
Incorrect fuel pressure

Wiki User

∙ 10y ago

What else can I help you with?

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