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
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.