Hello!
I noticed today that one of the buses at work ('06 F-550 6.0l) is putting out quite a bit of black smoke. Once the turbo starts building boost, the smoke mostly clears up, but before the turbo has a chance to spool up, she's putting out more smoke than my 6.9l does you'd think that there was a 6-71 powering the bus with all the smoke that's coming out!
Seems to me to be a classic case of too much fuel and not enough air; the question is why...the turbo does build up boost according to the dash gauge; she'll get to just above 20 with a reasonable amount of pedal. Could the air filter be dirty enough that it's starving the engine of air before the turbo spools up, or could it be a sensor problem, or are the variable turbo vanes sticking, or what? FWIW there's no CEL or anything like that on the dash....but with how bad the smoke is, I'm worried about being pulled over!
Trying to give the shop mechanic a lead to go off of...
Thanks in advance
I noticed today that one of the buses at work ('06 F-550 6.0l) is putting out quite a bit of black smoke. Once the turbo starts building boost, the smoke mostly clears up, but before the turbo has a chance to spool up, she's putting out more smoke than my 6.9l does you'd think that there was a 6-71 powering the bus with all the smoke that's coming out!
Seems to me to be a classic case of too much fuel and not enough air; the question is why...the turbo does build up boost according to the dash gauge; she'll get to just above 20 with a reasonable amount of pedal. Could the air filter be dirty enough that it's starving the engine of air before the turbo spools up, or could it be a sensor problem, or are the variable turbo vanes sticking, or what? FWIW there's no CEL or anything like that on the dash....but with how bad the smoke is, I'm worried about being pulled over!
Trying to give the shop mechanic a lead to go off of...
Thanks in advance