1985 Mercedes Benz 300td Repair Question
Topics covered: Engine, Fuel pressure, Sensor.
Mileage: No information provided.
Mileage: No information provided.
Asked on May 30, 2009
1985 Mercedes Benz 300td smog
Engine Performance problem
1985 Mercedes Benz 300td Two Wheel Drive Automatic 150000 miles
exorst pipe bleck smog-only in low speed?
1985 Mercedes Benz 300td Two Wheel Drive Automatic 150000 miles
exorst pipe bleck smog-only in low speed?
Asked by maxmargar.comAnswer
Replied on May 30, 2009
Sounds like its running rich
Possible causes include 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
