Question about 1995 GMC Safari
1995 gmc safair not running hot
Well blue smoke is almost always oil burning.
It could be rings allowing pressure into the crankcase or valve guides allowing oil to leak into the cylinders. Most of the time a leaking head gasket causes problems with the cooling system.
The engine can burn oil and not show oily spark plugs for a long time.
Posted on Jan 22, 2013
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Posted on Jan 02, 2017
Is the "service engine" light on at all?
If so, what codes are present.
Have you checked the EGR valve. If the valve is stuck, the engine will idle very poorly. You can remove it and clean the carbon deposites and make sure it moves freely.
The EVAP purge solenoid will also cause an idle problem but should show up as a service engine light problem.
Let me know.
Posted on Apr 20, 2009
SOURCE: 1994 GMC Safari Oil leaked
Check the oil filter adaptor bracket. My 1993 Safari had the same problem, and the adaptor bracket and seal were bad. Replacement fixed the leak.
Posted on Jul 08, 2009
SOURCE: white smoke when reved up
White smoke on startup could be a head gasket leak between the water jacket and the cylinder. Won't always show in the oil. Antifreeze makes it smell oily or sweet. Compression test will tell for sure. Bluish is oil that was burned. White is usually water or oil into exhaust after combustion.
Posted on Feb 06, 2010
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