Changed spark plugs

Asked by Mar 27, 2017 at 10:50 AM about the 2006 Chevrolet TrailBlazer LS 4WD

Question type: Maintenance & Repair

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

2 Answers

77,955

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.

58,275

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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