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Smoking engine idles fine, stops when load applied, blue smoke

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Blue smoke is burning oil.
Black smoke is rich mixture
White smoke is burning water (steam)

check compression, you have a worn bore, or worn or broken oil scraper piston rings.

Posted on May 19, 2017

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Have a 2002 magna 3.5l blowing smoke when idling and when I rev it it gets worse its white smoke my brother said it has a slight tint of blue but I couldn't see it


White smoke burning coolant blue smoke is burning oil. Check radiator for oil coolant mixture if so bad you have a blown head gasket or cracked block

Jul 07, 2016 | Cars & Trucks

1 Answer

I have a 1995 GMC sierra truck smoke when it stop at red light.


It probably smokes all the time , when moving you don't notice it > What color smoke ? White - coolant is getting in to the combustion camber , head gasket , intake manifold . Blue - oil is being burnt - rings , valve seals , Black - running rich , leaking fuel injectors . leaking fuel pressure regulator . Smokes from were , exhaust ? Engine bay etc....

May 01, 2016 | 1995 GMC Sierra C1500

1 Answer

I have a 5L-E toyota hilux that runs fine at idle yhen when you rev it to about 2000 rpm it starts to blow alot of white smoke. I have cut injectors out while the smoke is blowing with no noticable...


i believe the engine is running too lean as if it was running too rich it would blow black smoke If it was blue smoke it is oil related eg valve stem seals,valve guides and or piston rings all of these things will create blue smoke if one of the above is worn out

Mar 26, 2014 | Toyota Hilux Cars & Trucks

1 Answer

Engines idle goes up and down after warming up and blows blue smoke


If the engine idles for a while then blows blue smoke this is an indication of oil passing the valve stem seals and being burnt in the combustion process. ( When you are at lights and they change and you accelerate away leacing a cloud of blue smoke this is worn valve guides and failed valve stem seals) As for the idle it could be the oxygen sensor is coated with oil and soot and is malfunctioning henace the cpu cannot regulate the fuel setting correctly. Have the valve seals replaced and clean the Oxygen sensor and check for other fault codes

Feb 17, 2013 | Cars & Trucks

1 Answer

Blue Smoke .... Faulty PCV ???


does the engine idle smoothly? is the service engine soon light on? the engine is running rich causing the blue smoke.it could be pcv valve but unlikely

May 23, 2012 | 2002 Ford Explorer

1 Answer

1992 gmc sierra turbo diesel starts and idles fine until warm up


It's time for a Italian tune up!

The blue smoke can be one of two thing.

oil drop from the valve stem (from engine head to cyclinders)
or
diesel soot collect inside the exhaust system.

===
I will take a 5-10 minutes high rpm (not redline) ran on the highway.
Pay close attention to the rear view mirror and look for black diesel soot.
=== I will use Diesel Cleen or similar product to condition the fuel. (keep moisture down)
Use the recommended amount of SEAFOAM oil additive to condition the valve stem seal/rubber parts.

I can not rule out excessive blown by.
Can you get a diesel compression tester?
When was the last valve adjustment?

Please post the actual odometer on the engine and I will follow up on it.

Apr 21, 2009 | 1992 GMC Sierra K1500

2 Answers

Rebuilt puffs blue smoke off idle


If it only has 500 miles on it I would drive it awhile before doing anything. It could be the rings just haven't seated in yet.

Mar 27, 2009 | 1983 Toyota Pickup

1 Answer

Sputtering during idle blue smoke


You are burning oil, causing the blue smoke. It is mainly cause by worn piston rings. Also will coat your spark plugs with oily residue. Try an oil additive such as "stop smoke" or another such brand to reduce burning your oil and it may recondition your seal sand stop it all together.

Nov 20, 2008 | 1989 Mitsubishi Mighty Max

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