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Smoking engine


Blue smoke is burning oil.
Black smoke is rich mixture
White smoke is burning water (steam)

check compression, you have a worn bore, or worn or broken oil scraper piston rings.

May 19, 2017 | Cars & Trucks

1 Answer

I have a Brute Force 750, starts OK but runs rough after a few minutes, will start smoking a smelly black/gray smoke, and most recently some blue smoke.


When the head gasket fails on a liquid (water) cooled engine the typical smoke colour is white (steam) and that becomes rather underlined by the steady drop of the coolant level and often clear evidence combustion gas is leaking into the cooling system.

Smelly black/grey smoke tends to be produced by an over-fuelling condition such as a stuck choke or strangler or other cold starting aid or perhaps carburettor flooding.

Blue or blue/grey smoke is invariably engine oil burning but I suggest you ignore that until the black smoke problem is rectified and after a short time the blue smoke might also disappear. If it doesn't it could be related to the overheating but the black smoke probably wasn't caused by that...

Mar 18, 2017 | Cars & Trucks

2 Answers

What does blue smoke mean


Burning oil. Could be a couple of things. Possible your valve guide seals are warn out. If its blue smoke mostly when you first start the car, its likely valve guide seals. If its continuously smoking blue, its more than likely a broken or warn out piston ring. If its just every so slightly blue in tent, it might be worth a try to replace your PCV valve first. When the PCV valve gets completely gummed up, the pressure inside your valve covers has no way to vent other than forcing its way through the valves into the cylinders often times taking oil with it. Since PCV's usually only run out about $10 its worth a shot. Other wise, you've got a decent overhaul ahead of you for either piston rings or valve seals...on a 12 year old car most folks would either choose to scrap it, or live with the blue smoke while monitoring oil levels and watching for fouled plugs. Hope that helps and good luck!!

Jun 17, 2014 | 2002 Nissan Altima

1 Answer

Blue smoke 96 honda prelude


Blue some is burning oil. Check your PCV valve 1st, but if this is bad, your idle would be high. If it smokes when 1st starting only, the valve guides and/or seals are bad. If it smokes while driving, the rings are worn out.

May 05, 2014 | Honda Prelude Cars & Trucks

1 Answer

Smoke engines


Smokes can be of three colors.
1. White smoke.
Excessive white smoke reveals presence of water in fuel, thermostat valve stuck open, or burnt cylinder head gasket.
2. Black smoke.
Black smoke could be observed due to the unburnt fuel or higher percentage of Hydrocarbons during the combustion process, defective regulating valve, ruptured PCV valve, low fuel pump pressure, defective charcoal canister, ruptured or leaking fuel injectors.
3. Blue smoke.
Blue smoke reveals the engine failure.

Jun 24, 2013 | Toyota ECHO Cars & Trucks

1 Answer

My 1999 cadillac is smokeing really bad blue smoke but not looseing oil or anti freeze


blue smoke comes from too much oil in engine.thats can be the rings round the piston. the top ring is for leaving a film from oil so the piston
can run smoothly up and down.when its worn out you get to much oil
and see blue smoke.second possibility is valve setting,these tiny,
rubbers can worn out too and leave blue smoke behind.

Jul 27, 2012 | 1999 Cadillac DeVille

1 Answer

2001 saturn sl2 blue smoke when starting I'm car


Blue smoke is usually bad rings. But in the meantime, try changing your oil, see if that helps.

Mar 11, 2012 | 1993 Saturn SL2

2 Answers

Lancia Thema 16v turbo series 2 is smoking with blue smoke


if the blue smoke is constant then it is valve seals and guides, if it is only after depressing the throttle then it is the rings

Jul 28, 2009 | 2007 Lancia Beta

3 Answers

Puffs blue smoke


Blue smoke is caused by engine oil entering the cylinder area and being burned along with the fuel air mixture. As with the white smoke, just a small drop of oil leaking into the cylinder can produce blue smoke out the tailpipe. Blue smoke is more likely in older or higher mileage vehicles than newer cars with fewer miles.

This could mean a cracked head or bad gasket....It costly

Dec 08, 2008 | 1997 Suzuki Sidekick

5 Answers

Blue smoke coming from exhaust


blue smoke out of 1.8 turbo its allways bad oil seal inside turbo.need new turbo or rebuild OEM. with 24 years experience working with vw never seen single headhasket go bad on 1.8 turbo engines.blue smoke its 100% turbo every time

Jul 17, 2008 | 1999 Volkswagen Passat

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