Changed spark plugs
I change the spark plugs in my 06 trailblazer and
now he has a miss like it want to cut off sometimes
what is the problem
Possible causes; Faulty spark plug (s), Faulty ignition coil (s), Clogged or faulty fuel injector (s), 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.
or..... one of the spark plug wires came loose from the sparkplug. Been there done that. Is the check engine light lit? If so, what are the code(s)?
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