EXHAUST HEAVY BLACK SMOKE
I have a ALLEGRO BUS, 2002....GOING DOWN THE HIGHWAY THIS WEEKEND AND NOTICED MORE THAN NORMAL BLACK SMOKE COMING OUT OF MY EXHAUSE (CATAPILLA ENG 330 HP)....IT COVERED MY TOW VEHICLE....STILL HAD POW...
Forum Discussion
eHoefler wrote:Executive wrote:Passin Thru wrote:
There is a small rod sticking down in the intake that measures intake air and they get dirty. Get a can of carb cleaner and clean it but be gentle as it will break. May be that simple.
??? Never heard of this, but I'm eager to learn something new....where exactly is this rod?, and how would one find it....?....thanks...Dennis
Either injection for cold starting, nothing to do with anything else.
Look for a fresh air intake blockage, air filter, intake piping to air filter. Most likely rats/bird nest in the intake to the air filter.
The poster was probably referring to the mass air flow sensor, which many engines use to determine the fuel needed for proper fuel injector activation or other related functions.
As it turns out, the OP's problem was too much fuel from a faulty fuel injector.
