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Black smoke means you're burning fuel, blue smoke, you're burning oil, white smoke, you're burning coolant.

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Q: What causes grey smoke from your exhaust when idling?
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What is wrong with Isuzu trooper 3.0 dt idling up and down and white grey smoke from exhaust?

Sounds like you need a ring job, white/grey smoke from the exhaust usually means oil is burning in your engine. Your engine may need a tune up or a compression check, bring it in to your mechanic.


What causes gray smoke from exhaust?

grey exhaust smoke is caused by your engine burning oil during the combustion process. this could be caused by a piston ring that doesnt properly seal, or another leak in your engine.


What causes diesel to emit white-grey smoke from exhaust when starting and revving engine?

Injectors, timing, low cylinder pressure.


What color exhaust smoke is caused by carbon?

black,grey


What causes gray smoke from the exhaust?

Blue/grey smoke is usually oil. White smoke is usually coolant in the exhaust. IE: blown head gasket or something. note: if the smoke goes away after it runs for a minute it's oil runnung down the valves when it sits. Common problem, won't hurt anything.


What causes a '73 Nova to emit white-grey smoke from exhaust when starting and revving engine?

the valve guides could be worn out The carburetor is running fuel rich and needs adjustment. If it were valve guides or rings the smoke would be blue


What does it mean when a car blows grey smoke after idling?

What gray smoke means: Gray smoke is caused by brake fluid. It generally means that your brake master cylinder is bad, and is getting sucked through the vacuum brake hose.


Why would gas smoke come out of the exhaust on a 96 Chevy s10 blazer after a tune up?

Why is smoke coming out of my 96 s10 oil fill and exaust blowing grey smoke


Bronco cranks over but won't start with puff of grey smoke coming from carb?

if there is backfire, check the exhaust restriction....


Why does my 1994 Honda Civic EX blowing grey smoke out of the exhaust?

Grey/whitish smoke usually burning water/black smoke usually burning oil-could be head gasket issue. Look for signs of water loss, overheating or water in oil pan.


What cause grey smoke for the exhaust when being revved up?

its not always a bad thing its just your oil usually when the engine is still cold


You have grey maybe white smoke coming out of your exhaust 1994 Ford Ranger V6?

check for cracked heads, or blown head gasket.