Smokey Volvo
#1
Smokey Volvo
Hey folks, I was just wondering, why my volvo (940 se 2.4 turbo diesel) is so smokey. She doesn't burn oil, and fuel economy is very good. (450km with half a tank) But when driving at high revs, there is a lot of black smoke come from the exhaust. also when driving at 50 or 60 km/h in any gear and i push the accelerator all the way, there is a white grayish smoke coming. looks in the rear view mirror a little like its foggy outside. Really would like to know what that might be. Power and acceleration are good. Have a car test next week so i'd like to know if it is bad or not.
Regards
Regards
#5
Most (all?) non common rail or turbo diesels produce some smoke at full throttle. The pumps are set rich to avoid detonation, which is bad at 22 to 1 compression.......
As long as the smoke is only there at 3/4 throttle plus (at any revs), you can just accept it as normal turbo diesel behaviour. But go ahead and check your air filter too. Intake restrictions will make a diesel smokey.
Have a look at a semi trailer or bus next time it takes off from a stop. Lots of smkoe initially and again at top of rev range.
Regards, Andrew.
As long as the smoke is only there at 3/4 throttle plus (at any revs), you can just accept it as normal turbo diesel behaviour. But go ahead and check your air filter too. Intake restrictions will make a diesel smokey.
Have a look at a semi trailer or bus next time it takes off from a stop. Lots of smkoe initially and again at top of rev range.
Regards, Andrew.
#7
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