SOURCE: engine misfiring/fuel coming out exhaust
Sounds like you may need to inspect and replace your fuel line from front to rear. no other reason for your problem.
SOURCE: misfiring on right side at low rpm.
could be a catalytic converter or o2 sensor. really would need to hook it up to a proper scan tool to view live data while running.
SOURCE: 2005 4.4L trailblazer set dtc p0304. What are
P0304....Cylinder 4 Misfire Detected
could be a burnt out valve??
SOURCE: gas smell coming from exhaust
May have to remove the fuel injectors & mail away
to be ultra sonic cleaned & flow tested
I suspect you need a new exhaust converter & oxygen
sensors--- once the fuel issue is solved
Why is a repair shop not your go to place for answers?
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