2003 chevy trailblazer ext 4.2l

Asked by Bsullivan09 Feb 14, 2020 at 09:03 PM about the 2003 Chevrolet Trailblazer EXT LS 4WD

Question type: Maintenance & Repair

Truck keeps misfiring after spark plugs coil change came
back from an shop getting an transfer case on and been
misfiring since had that throttle thing cleaned and all
ordered brand new spark plugs and coils from amazon still
misfiring help plzzzz

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