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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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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 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 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 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!
Does the transmission make smoke come out of the tailpipe?
No, the engine exhaust is what comes out of the tailpipe.
