2003 Chevrolet Suburban Repair Question
Topics covered: Black smoke, Engine, Smoke.
Mileage: 143,130 miles.
Mileage: 143,130 miles.
Asked on March 16, 2012
Engine missfires, runs ruff
Miss fires, black smoke from tail pipe, and all the spark plugs on the passenger side look like the bottom of an old engine, full of black oil i guess. when I kick down on the excellerator the black smoke is so thick that it left black sut on the garage door. the code says random missfire. but I am confused as to why all the spark plugs on the passenger side are fouled but the drivers side are fine.
Answer
Replied on March 16, 2012
That means it is getting too much fuel. Check fuel pressure regulator. If the check engine light is on, have the computer scanned for trouble codes.