1998 Chevrolet Blazer Repair Question
Mileage: 14,000 miles.
1998 chevy blazer Lt exhaust smells like fuel runns rough
Asked by JohnnysilverwolfAnswer
Check compressions, replace plugs, if one or more are very black and sooty you will have a miss fire on the cylinder due to excessive fuel. (leaking injector) faulty spark or low compression, is the coolant level low? if the plug looks a dirty rusty colour you may have a coolant leak into that cylinder, the white smoke is also a sign of coolant burning.
no coolant lost it also uses alot of fuel will reply about plugs tomorrow could the O2 sensors be bad ?
could be and also check for a faulty coolant sensor.
ok changed plugs wires cap button code says first random miss fire cleared then misfireing on cylinder 5 code cleared back to random missfire any ideas
YOU NEED TO TEST FUEL PRESSURE,COMPRESSION,SPARK,ECT READING.AND INJECTOR PULSE WITH A NOID LIGHT.