Question about Cars & Trucks
White smoke is oil burning or coolant burning. what does smoke smell like oil or antifreeze? If smells like oil check oil level if not over full or milky looking check your pcv valve and make sure its not stuck closed if it rattles when you shake it its ok. check your spark plugs and see if they are oil fouled or washed off and wet with coolant. If oil fouled and pcv was not stuck the piston rings or and valve guides are worn and letting oil get by. If plugs are wet and radiator level is low the head gasket has a leak and needs replaced If its not running hot the head will be ok. If a 4 cylinder its a 12 hour job plus parts V6 18 hours plus parts. If its oil burning it will be even more.
Posted on Jan 04, 2015
Head gasket probably blown
Posted on Jan 04, 2015
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Posted on Jan 02, 2017
This is usually an indication of a bad head gasket.I gasket. The white smoke is the coolant leaking out of the engine and winding up in the oil passages, due to a bad head gasket. To confirm this,
1. check oil. Is level increased, or milky appearance?
2. Is coolant level dropping, but u don't see any signs of leaks?
The above indicates a bad head gasket, causing the white smoke u describe. Let me know how u make out.
Posted on Jan 03, 2009
I would think this will be a blown turbo.
These are fed by a small oil pipe and if the unit overheats (due to wear) - this oil fill feed directly into either the inlet manifold - or the outlet - exhaust.
If it is spilling oil into the hot exhaust - you will get a thick white fog. You can confirm this by placing a clear glass bottle or jar in the exhaust stream - and see if it gets a thick coating of oil on it. If it evaporates - it's water, if not - or feels oily - new turbo or overhaul.
Best get is sortd sooner rather than later - as you may be able to save most of it for an overhaul rather than scrap it if badly worn.
Posted on Feb 04, 2009
black smoke is fuel white smoke is oil. change your spark plugs to a hotter plug and run with some hpr 50 engine oil or somrthing nice and thick
Posted on Oct 18, 2009
'07 cummins engines are not to smoke at all. Cold, hot or upside down. If its smokin, its broken is the motto. '07 's are common rail fuel systems. I think you may have the DPF and the DOC exhaust system needs looked at. If no codes, have the dealer double check with ENSITE or comparable programs to check the engines crank and cam possitiion sensors to make sure they have the same rpm. you could have one going out. If just at startup you have smoke, may just be valve seals leaking. Good luck hope this helped.
by the way unburned fuel is black not white, thats oil...
Posted on Dec 02, 2009
If the smoke is white in color, has a sweet scent and deposits moisture (face the palm of your hand about 3 inches back from the exhaust tip with the engine running for a few seconds then check your hand for moisture) then you are burning coolant. If it is being burned and exiting out the exhaust, you more than likely have a head gasket leak so be cautious of the engine temperature because the car will possibly overheat. If you look closely at the smoke and if it has a blue tint in the white then you are burning oil which could be leaking from the piston rings. Further inspection would be necessary in both cases. It is very important to correct either issue immediately due to the severity of the possible outcomes that can destroy the engine and leave you stranded and car less to name a few.
Posted on May 12, 2010
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