2006 Chevrolet Monte Carlo Repair Question
Topics covered: Engine, Fuel pressure, Sensor.
Mileage: No information provided.
Mileage: No information provided.
Asked on August 27, 2009
Chevy dirty exhaust
Engine Mechanical problem
2006 Chevy Monte Carlo V8 Front Wheel Drive Automatic 42,000 miles
i have an 06 monte carlo ss 5.3/ls4 and have noticed a little black residue inside my exhaust pipe tips, is there any concern??, thank you, matt
2006 Chevy Monte Carlo V8 Front Wheel Drive Automatic 42,000 miles
i have an 06 monte carlo ss 5.3/ls4 and have noticed a little black residue inside my exhaust pipe tips, is there any concern??, thank you, matt
Asked by mattyguscgAnswer
Replied on August 27, 2009
Could be running rich get it check on a gas analyzer to confirm it. Running rich could be caused by the following a bad O2 sensor, excessive fuel pressure (bad fuel pressure regulator or plugged return line), leaky fuel injectors, dirty air filter or restricted air inlet, or a defective coolant sensor that prevents the engine management system from going into closed loop mode.
