Question about 2002 Chevrolet Impala

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Just fixed head gasket and Car smoking bad from tail pipe

How can I test the valves to see if oil is leaking through?

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  • Chevrolet Master
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Check spark plugs if electrode full of oil more likely valve seals and valve guides worn.if you see white smoke new head gasket leaking do a compression test see what cylinder pressure you have.you need at least 140 to 175 compression.

Posted on May 01, 2013

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Posted on Jan 02, 2017

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SOURCE: car is hard to start, keeps stalling, white smoke coming out of tail pipe

It sounds to me like you have a head gasket leaking. See if you can get a gauge and check each cylinder. Are you using alot of anti freeze?

Posted on May 28, 2009

  • 312 Answers

SOURCE: Upon starting avalanche blue, white smoke comes

Take that truck into the dealer and have them repair it under the powertrain warranty. 2007 offered a 5 year/100,000 mile warranty.

The smoke on startup is the result of oil getting past the valves.

Posted on Oct 05, 2009

SOURCE: if my car has some white smoke coming out the tail

If you have steady thick white smoke and it smells like anti freeze it is most likely the head gasket. The head gasket can fail in different areas. If it has white smoke it failed between a coolant passage and the combustion chamber. If the oil is milky it failed between the coolant passage and an oil passage. Just because the oil isn't milky doesn't necessarily mean that the head gasket it's blown.

Posted on Oct 06, 2009

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SOURCE: I HAVE A 2006 CHEVY AVEO, LESS THAN 80 MILES AGO

when run with a misfire, the cat will get loaded up with fuel, it takes awhile for it to burn out, and a code may set, on some occasions it ruins the converter, try clearing it and running it

Posted on Oct 14, 2010

  • 1114 Answers

SOURCE: started when i added a

Hello white smoke is usually engine antifreeze,Blue smoke oil burning,Black smoke car running to rich on gas,gas is not burning properly.

Posted on Dec 31, 2010

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My 1990 ford ranger 4 speed w overdrive keeps overheating. thermostat good waterpump good. when overheating overflow is boiling and bubbling


maybe bad head gasket causing bubbling in over flow tank
if level is going down you might see white smoke from tail pipe,
wet spark plugs or engine oil looking like coffee.
hope this helps

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sounds more like a blown head gasget a compression test will tell you for sure

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any smoke from the tail pipe.if it is ,it might headgasket leaking from inside the engine or the valve stem.check the PCV system ,it might block it & oil is going to intake system.check the PCV system & the vent hose first.

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White smoke out of exhaust


Regarding 2001 audi a6 quattro 2.7t....i was driving to work the car was fine then white smoke starting coming from under the hood and tail pipe. i stopped veilce and alot of oil was dripping from front of car. I towed it home and i looked under the hood and there was oil from valve cover gasket. i let the car sit for a few days, had it running again for a good hour and no white smoke was coming out. I removed the valve cover and gaskets are all bad. i want to know can the valve cover gasket leak cause the white smoke to come from exhaust pipe?

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No power when I step on the gas and is smoking bad


Smoke from tail pipe or smoke from under hood?
A general rule of thumb if it is coming from tail pipe the color of smoke will tell you a lot.

White and thick means head gasket failure, Blue means oil is being burned.

I would recommend you check the seal of everything and make sure it is cleaned that had to do with vacuum or fuel distribution. EGR valve (gasket fails sometimes) IAC valve, MAP and MAF sensors, Fuel injectors, FPR (this will need replaced if leaking),

Also check you coolant and oil look for signs of either one mixing with one another, smell you coolant and make sure it don't smell like gas either, look around where the head meets the block and make sure you don't have any coolant leaking there. The smoke if from the tail pipe makes me think head gasket and these are simple checks. They are not 100% diagnosis but can lead you to the problem.

Also one obvious thing would be make sure no one put anything in your gas tank.

I would most likely look at the injectors first then the head gasket next.

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2004 dodge neon and white smoke


You probably have a bad head gasket.
To verify this see if the coolant is milky or if there is oil in the coolant reservoir. If so you need a new head gasket . If not you have an oil leak into the combustion chamber.

Approx cost for head gasket w/head cut approx $1500 to$ 2000.

If it turns out to be an oil leak into combustion chamber I really can't project . Need to know whats leaking and why.
Good luck

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I had white smoke from the tail pipeand getting hot ... I had the heads done , gasket valve . and resurfising. when I got the saab back ,I drove it about 49 miles started driving slugish , bufs of black...


Sounds to me like they did a bad head job. No pun intended. lol, White smoke indicates moisture in exhaust but black smoke indicates a oil leak. I would take it back and have them check the job they did. If the car is over heating then the head gaskets are pretty much blown.

Dec 01, 2009 | 1999 Saab 9-5

1 Answer

Leaking oil put of tail pipe, is the cooling sensor important, head gasket blown how do you know


Never seen oil come from tail pipe (unless a piston has a broken ring or a hole burned in it.) Cooling sensor tells the computer the engine temp and the computer turns the fan on through the fan relay. Very important for it to work. A blown head gasket will make the engine overheat, can cause white smoke from tailpipe, coolant loss and extremely rough running. Also can cause coolant in engine oil or oil in radiator. What you may be seeing may be water mixed with carbon from the inside of the pipe. Excessive water coming form pipe is also a head gasket symptom. A compression test or cylinder leakdown test or a radiator hydrocarbon test will tell you if gasket has failed.

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Blue smoke from tail pipe 98 neon no leaks i can see


It sounds like you could need some new piston rings. when they go bad it causes oil to get by into the combustion chamber and burn when the engine fires.

Apr 20, 2009 | 1997 Dodge Neon

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