2001 gmc sierra 1500 4.8leter v8

Asked by Jan 15, 2017 at 02:10 AM about the 2001 GMC Sierra 1500

Question type: Maintenance & Repair

ok so I broke down and had to get towned it said on the code reader it was miss firing and the mass air flow sensor was bad till I sprayed it with the spray to clean it now its just miss firing I changed spark plugs the wires for the spark plug and the ignition coils its still not getting power to the entire right side of the engine not enough atleast  idk what else to do I need to get straight to the problem help would be appreciated

1 Answer

105,325

Check the fuel injection fuses, it is possible you have a right and left bank if it did blow a fuse you could have a short in the wiring on that bank or a shorted ignition coil, could be an ECM, but they usually dump every other cylinder not a whole bank.

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