Could be too much fuel being burned. Gunk is building up, and when the engine is reved, the build-up is forced out. I have the same problem, and black spots all over the wall in my garage. Running rich sounds right. Best to get it fixed before you develop converter problems. Your fuel economy will improve dramatically. Do you have a check engine light on? If so, get the code read to you, and it's possible that you have a bad 02 sensor, I had the same thing with my 96 Explorer, replaced the 02 sensor. A few minutes after replacing the 02 sensor, I blew the rest of the carbon out of the exhaust, and havent seen it since.
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Related Questions
What would cause black smoke to come out of the tailpipe in a 92 firebird?
black is excess fuel
Would a bad head gasket cause loss of oil to come out the tailpipe?
No. A bad head gasket would cause water to come out the tailpipe. You will see white smoke. Leaky rings would cause oil to come out the tailpipe. You will see blue smoke.
What would cause white smoke to come out of tailpipe?
Head gasket or cracked head
What would cause black smoke to come from the tailpipe of a 97 Chevy Cavalier?
Black smoke usually means the engine is running too rich. The fuel/air mixture is incorrect. Blue smoke is oil burning.
What causes black smoke to come out of the tailpipe?
Excess fuel causes black smoke.
How can you make black smoke come out of your tailpipe?
Need to know why this is necessary.
What would cause white smoke to come out of the tailpipe after the car sat for months?
White smoke is a symptom of a blown head gasket.
What would cause billowing black smoke to come from your tailpipe then when you push the gas the smoke is white?
Blown head gasket. Or a missfire cause by a bag ignition coil, fouled plugs, too little fuel pressure, timing is off ect.
Does misfiring on cylinder 6 and 8 cause white smoke to come from the tailpipe?
It could, depending on the cause of the misfire.
Why would engine oil come out of a tailpipe?
my guess would be bad piston rings
What will cause coolant and water to come out tailpipe on 1990 Mazda mpv van?
blown head gasket!
Can crossed spark plugs cause sparks to come out of your tailpipe?
the only thing crossed spark plug wires can do is cause one to misfire.
Does the transmission make smoke come out of the tailpipe?
No, the engine exhaust is what comes out of the tailpipe.
What would cause blue smoke to come out of your tailpipe on 97 Volvo 850?
Blue smoke is burning oil.Blue smoke is burning oil.
Can mixing synthetic oil and regular oil cause white smoke to come from the tailpipe?
I would say no. It sounds like water is entering the combustion chamber from maybe a bad head gasket.
What would cause black smoke to come out of the tailpipe on a Saab?
The same thing as on lesser cars: Black smoke means either you're running WAY too rich - unlikely unless a sensor is screwed up in your fuel injection system - or you're burning oil. And the main reason you're burning oil is your piston rings are shot.
What would cause f350 6.9 diesel to lose power and have white smoke come out of tailpipe?
blown head gasket,it causes the coolant and gas get mixed in cylinder,that cause the white smokeyou also loose compression which in return you loose power
Why does catalytic converter clog?
Catalytic converters clog due to the carbon that the car produces. Usually, when the carbon has built up inside the cat., black smoke will come out of the tailpipe when you rev the engine. In extreme cases, black soot is visible on the ground next to the vehicle's tailpipe. Crystal Woll
Can blocking the tailpipe force fumes to come back into the car?
No 6ecause if that was the case and there was somthing blocking the tailpipe, that was strong enuff to do that the preasure from that would either force the enigine to stop or it would bust the weld on the excuast so no that wont happen
What causes water to come out of the tailpipe?
You have a blown head gasket.
What causes blue smoke to come from your tailpipe?
the engine is burning oil. blue smoke oil white smoke antifreeze black smoke excess fuel
Why feces black?
Sometimes feces can come out black because they have blood in them. This is the usual cause of black stool.
What makes water come out of the tailpipe of your car?
your moms vag juices not water
What would make smoke come inside from the passengers front side and out of the tailpipe?
You have an Exhaust leak, you need to get this fixed immediately. Carbon Monoxide can KILL.
Why would a lot of white smoke come out of the tailpipe when the car is turned off?
If your block is cracked engine coolant may be leaking into the combustion chambers.
