2006-08-22 04:44:52 · 38 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Does no one here know anything about exhaust smoke??? Geez....
Black smoke = rich fuel mixture. Sounds like too much gas and not enough air. Check your carb.
Blue smoke = oil burning. Could be caused by valve seals, worn pistion rings, etc. Internal engine issues.
White smoke = burning coolant. Blown head gasket most common cause.
2006-08-22 05:32:31 · answer #1 · answered by Ism 5 · 3⤊ 0⤋
Black Smoke Exhaust
2016-11-10 22:12:23 · answer #2 · answered by ? 4 · 0⤊ 0⤋
Sigh.
BLUE smoke means your car is burning oil, which is unclean and doesn't burn completely.
White smoke is burning coolant (so you get whitish steam).
Black smoke is soot, which is basically because you're running very rich.
Another reason it's most likely running rich versus having shot internals is the fact that you only get smoke when you floor it, whereas leaking oil would most likely net you smoke regardless of throttle position.
If you have an EFI (electronic fuel injection) car, run some fuel system cleaner through it and see if that helps at all. If not, you might have an injector that's stuck on open, I would suggest taking it to a shop.
If you have a carbuereted car... also shop, unless you feel like re-jetting your own carb.
Ofcourse, this also depends on you diagnosing the color of your smoke correctly. A simple check would be to see how your mileage is doing, and your car's performance, along with the oil level.
If it feels more sluggish and gets worse mileage, but the oil looks fine and relatively clean, it's probably the injectors. But if your mileage is relatively okay but your oil level drops without any noticeable leaks, it might be that you're seeing blue smoke.
2006-08-22 04:55:20 · answer #3 · answered by ymingy@sbcglobal.net 4 · 2⤊ 0⤋
YOU OWN A WHAT??? god how do you have the guts to come on here and say you own a rover 25..i wouldn't worry about the black smoke..i would worry about finding a shrink...lol
2006-08-22 04:52:16 · answer #4 · answered by hondanut 4 · 0⤊ 2⤋
I agree with everyone who said rich fuel mix condition. BLACK smoke from a vehicle indicates rich fuel mixture and your engine is not burning all the fuel going into it. BLUE color smoke is oil. And WHITE smoke is coolant. The fuel regulator may be bad causing too much fuel to be injected into the cylinders. Have the vehicle checked with a scanner and it will tell you exactly what is causing your rich air/fuel mixture.
2006-08-22 05:52:17 · answer #5 · answered by turbietech 4 · 0⤊ 0⤋
Is it a diesel?
If so, a certain amount of soot is inevitable as the Rover 25 never had a particulate filter.
If it's a petrol, because its knackered.
2006-08-22 22:05:09 · answer #6 · answered by Neil 7 · 0⤊ 0⤋
Blue smoke is oil. Black means gas. White or a steam like smoke means water. Try running some fuel cleaner thru your tank.
2006-08-22 04:55:14 · answer #7 · answered by Anonymous · 2⤊ 0⤋
Not all of the gas is being completely burned away. If it were burning oil you would get white smoke. With old carburetors it would indicate that the mixture wasn't right. I don't know what you would do for fuel injection to fix it.
2006-08-22 04:51:34 · answer #8 · answered by turtlekeys119 3 · 1⤊ 0⤋
What CC engine is it? If it's the 1.8 engine they are renowned for blowing the head gasket. Ask any rover dealer, they have now included the head gasket change as a major service item.
Its also on the MGTF and the Freelander (same engine)
2006-08-22 04:52:39 · answer #9 · answered by ? 3 · 0⤊ 1⤋
If you have a diesel engine... it is supposed to pour black smoke. If you have a petrol engine, it's burning oil. But then, it's a Rover... isn't it?
2006-08-22 04:53:22 · answer #10 · answered by virgilio costa 3 · 0⤊ 1⤋