Question about 1995 GMC Safari

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Van is smoking blue from the tailpipe no oil on the plugs no oil either real bad miss do that sound like heads gaster is gone

1995 gmc safair not running hot

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  • GMC Master
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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

  •  Stephen
    Stephen Jan 22, 2013

    You might want to check the PCV valve and make sure the crankcase is breathing.

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Posted on Jan 02, 2017

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SOURCE: i have a 2000 GMC

that is telling the voltage is ether to high or to low i know that autozone has a free test for battery and charging system i would have it tested

Posted on Dec 20, 2008

GM Elec
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SOURCE: 1994 gmc safair 4.3 wont run at idle and bad

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.
Regards,

Posted on Apr 20, 2009

  • 11 Answers

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

  • 128 Answers

SOURCE: 1995 GMC JIMMY Runs rouph, P0306 stored rich

Prob needs a o2 sensor or oxygen sensor they are called

Posted on Sep 17, 2009

  • 200 Answers

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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1 Answer

1995 300zx oil consumption


If it's not leaking from the engine, and it's not being burned (blue smoke out the tailpipe), the only other place for it to go would be into the coolant system, but that would only happen with a bad head or head gasket. Do you have an overabundance of coolant?

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Taking off the head off is there a diegram or pic i can use


Blue smoke is oil being burned in the cylinders. It could be valves not seating properly, valve stem seals bad, possibly a head gasket if it blew where an oil passage may let oil in cylinders, or badly worn piston rings.
If you can afford it, have a shop do a leak-down test of each cylinder to pinpoint the problem. Then you may know if you need a new head gasket, or a valve problem fixed when head is off, or new valve stem seals replaced, or if rings are bad requiring engine overhaul.

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I ran my chev. 1990 pickup out of oil and now it smokes so bad. and i think my fuel pump is going out but not sure??


Sounds like you may have ruined the piston rings and this is allowing oil to seep in to the combustion chamber hence your smoke. Or if it overheated when you ran out of oil it is possible that you have a bad head gasket now. Check both your coolant and oil for signs, oil will have a white froth, or darkening of your coolant. Hope that helps you.

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Smoke oil? For what your thinking that is oil? Smoke coming from the tailpipe is not good news, but does not necessarily mean the engine needs rebuilding. First, you need to determine what color of smoke is coming from the tailpipe
* White smoke is caused by water and or antifreeze entering the cylinder, and the engine trying to burn it with the fuel. The white smoke is steam. There are special gaskets (head gaskets are the primary gaskets) that keep the antifreeze from entering the cylinder area.
* 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.
* Black smoke is caused by excess fuel that has entered the cylinder area and cannot be burned completely. Another term for excess fuel is "running rich." Poor fuel mileage is also a common complaint when black smoke comes out of the tailpipe. Black smoke out the tailpipe is the least cause for alarm.


If you confirm us that is oil smoke, check and keep in mind that the car has many seals, gaskets, and O-rings that are designed to keep the engine oil from entering the cylinder, and one of them has failed. If too much oil leaks into the cylinder and fouls the spark plug, it will cause a misfire (engine miss) in that cylinder, and the spark plug will have to be replaced or cleaned of the oil. Using thicker weight engine oil or an oil additive designed to reduce oil leaks might help reduce the amount of oil leaking into the cylinder.

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Apr 15, 2011 | 2005 Mitsubishi Diamante

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I have a 1990 ford ranger xlt that blows out smoke from tailpipe its white with blue in it the mass airflow sensor doesnt do anything when un plugged it has a miss to its a 2.3 liter engine


Sounds like you have a blown head gasket - white smoke = coolant. Pull plugs and look for "steam cleaned plug" or for coolant in oil - looks milky.

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This is either worn valve stem seals or worn out oil rings. Have someone follow you if the car smokes more as you release the throttle on deceleration it is most likely valve stem seal if it smokes more on acceleration it is worn oil piston rings. If the smoke is white you have a blown head gasket blue smoke means burning oil, black smoke means too rich (to much gas reaching motor)

Jan 05, 2010 | 1991 Honda Accord

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Blown head gasket or not?


check oil dip stick for water/antifreeze and radiator for oil in antifreeze but usually alot of white smoke-steam from tailpipe usually indicates head gasket blue smoke means oil black smoke carbon

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