Question about 2002 Chevrolet Silverado 2500HD

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2002 duramax smokes at stop sometimes ,also blows some only when taking off. doesn't use oil.

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If this is a diesel motor nothing is wrong this is normal for a diesel

if it not a diesel what color smoke is it blowing???

Posted on Nov 14, 2010

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1 Answer

2002 duramax smoking at idle


most likely valve stem seals failure or worn valve guides
the high vacuum in the manifold draws the oil down each time the inlet valve is opened

Apr 05, 2017 | Cars & Trucks

1 Answer

Why does my 2001 chevy duramax smoke when it idles


This happens when the vacuum in the manifold is at maximum and the air is drawn down past the valve stems into the combustion chamber. IT takes oil with it and so when you increase the RPM's ( moving off at lights)the burnt oil in the exhaust is expelled as a cloud of smoke . The fix here is to replace the valve stem seals that have gone hard/cracked and are no longer sealing on the valve stems

May 11, 2014 | 2001 Chevrolet Silverado 2500

1 Answer

Why does my car sometimes blow smoke


If it's white smoke, it's oil. If it's black smoke, it's fuel. Make sure you haven't over-filled you oil levels.
If it's worse when you first start it, the oil is leaking down from the valves. You may even have some debris preventing it from flowing back into the block.

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We have a 2002 Chevy 3/4 HD Duramax that is blowing out blue smoke. Mileage is 371,256 Any ideas


You will need to have the injectors and injector seals checked and if it is a turbo you will also need to have the turbo seals checked.

Jun 28, 2011 | 2002 Chevrolet Silverado 2500HD

2 Answers

My 2002 chevy 6.6 duramax has white smoke coming out the tail pipe. What is possible problem?


Sounds like you have eather a small hole in head gasket. or a crack in head. White smoke mean's water in exauest.Try a bottle of liquid glass stop leak first if not to bad . this works good. if not to big of hole. good luck to you.If need any further help just let me know.

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1 Answer

My 2003 Chev 2500 Duramax is blowing geyish smoke. Checked oil, no sign of water and the oil was recently changed.


check for bad modulator valve on transmission,when bad they cause the engine to smoke greyish or sometimes blueish smoke

Aug 15, 2010 | 2003 Chevrolet Silverado 2500HD

1 Answer

Smoke when idiling


U need to replace your valve stem seals.

May 20, 2010 | 2001 Chevrolet Silverado 2500HD

2 Answers

95 volvo 850 burning oil. no leaks. How do i check the turbo seal or the the pcv system


Hi, I have a 1996 Volvo wagon 850 turbo. I just bought it and when you hold the rpm's at 3 and a half it was blowing out smoke after about 600 miles it stoped smelling like burning oil and doesn't blow out any smoke. But I use a court of oil in about every 150 miles. What could this be?
Thank's Jodie

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most likely the turbo, if its a darker or bluish smoke.

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