1998 Malibu 2.4l 4 cyl, start and get acrid smell exhaust. Tailpipe is black w/ exhaust soot..just replaced alternator, engine violent at low rpm ( under 1000 rpm) easily stalls

Asked by Malibumarc Sep 21, 2015 at 10:20 AM about the 1998 Chevrolet Malibu FWD

Question type: Maintenance & Repair

Start engine, get acrid smelling exhaust fume. Tailpipe is black, engine feels
like it's running on 1 or 2 cylinders at idle ( less than 1000rpm), must feather
gas pedal to keep it going. Smoother running at higher rpm. Must feather gas
pedal up and down at 'idle speed', otherwise will stall out.

3 Answers
3,815

Rhodes2345 answered 8 years ago

i think i would start with a tune up. maybe some injector cleaner i would use BG44k cleaner

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