2002 International Truck Repair Question
Topics covered: Fuel pressure, Sensor, Black smoke.
Mileage: No information provided.
Mileage: No information provided.
Asked on March 5, 2011
Engine misfire
I have a 2002 international 4300 dt 466 bobtail with black smoke coming from exhaust, have allready changed pistons,injectors,harness,and still have #1 injector not firing.
Asked by brian guidoAnswer
Replied on March 6, 2011
Probable causes of an engine running rich are as follows:
1.Excessive fuel pressure can be cause by restricted fuel return line
2.Defective Oxygen Sensors.
3.Leaking injectors and fuel pressure regulator.
4.Coolant temperature sensor out of calibration.
5.Restricted air intake system.
