1991 Dodge Ram Van B250 Q&A
1991 Dodge Ram Van B250 Question: black smoke
Sounds like a fuel control problem, like a vacuum leak or a sensor issue. Have a diagnostic test performed that may focus on that area. - DaveJHM
tune-up and new fuel filter maybe clean the carb. out with spray - spockzues
Hard Starting, Rough Idle, Black Exhaust Smoke, Poor fuel mileage may indicate a leaking injector or more commonly a leaking injector O-ring. Our technicians tell us that with engine idling and air...