Question about 1993 Chevrolet K1500

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Heavy smoke from air breather and surrounding connections

After driving, not when idleing,smells like oil burning, some oil in these areas.

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  • yadayada
    yadayada May 11, 2010

    Do u have an oil leak or is this smoke comming from the crankcase vent tube to the air cleaner?

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  • 3,533 Answers

When was last time PVC valve was changed?
and is there oil in the air filter or in the throttle body?
and if there is this is maybe a sign the blow by on the oil rings is getting weak before you go crazy go to napa or auto zone and get Lucas oil treatment and try putting a quart of this in instead of a quart of oil at the next oil change and this may help you out

Posted on Jan 04, 2009

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Posted on Jan 02, 2017

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Black smoke>fuel consumption>rough idle


Hi there:
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. Excess fuel will usually effect engine performance, reduce fuel economy, and produce a fuel odor.

How did the fuel get into the cylinder in the first place? Some of the causes of excess fuel are a carburetor that is out of adjustment, a faulty fuel pump, a leaky fuel injector, or a faulty engine computer or computer sensor. If black smoke is present, check the engine oil as in the white smoke example to make sure excess fuel has not contaminated it. Do not start the engine if a heavy, raw fuel smell can be detected in the engine oil. Call your mechanic and advise him of what you have found.

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Thank you for using FixYa, have a nice day.

Mar 04, 2012 | Cars & Trucks

1 Answer

Alot of smoke under my hood comes out when i just drive to work smells like burning oil


When the smoke is coming out, stop the vehicle and have a quick look where its coming from, it could be leaking oil going onto your exhaust system, it could be coming from your breather, have a look.

Feb 26, 2011 | Chevrolet Camaro Cars & Trucks

2 Answers

Oil smell smells like it is burning oil last oil change was 3 months ago


Common causes of smelling "burning" oil are:
  1. a leak in the valve cover gasket. When oil leaks from the valve cover gasket, it will often burn off on the manifold.
  2. a blown oil seal causing oil to burn off on the exhaust system
  3. check your exhaust for "blue smoke" a sign that the engine is actually burning oil. Just guessing here but a 16 year old Volvo is bound to have quite a few miles on it.
I hope you found this post helpful in diagnosing your problem. Thank you for using Fixya! Greg

Feb 18, 2011 | 1994 Volvo 940

2 Answers

I've changed the oxygen sensor and the O2 sensor and new plugs on my 97 dondge 3.9 van and it still blowen black smoke (rich) seems to run real good on top end but theres is a flat spot where theres no...


Black smoke indicates no air, check your air filter, if you have done that and it is ok, check the PCV valve. Thats about all that I can suggest. Hope that helps.

Dec 07, 2010 | 1996 Dodge Dakota

1 Answer

I purchased a 2003 late 52 plate vw passat 2.0 petrol 130 sport after a few days the oil light came on then i topped it up after two weeks of driving local i found i done a check and found it needed...


from the VW manual........"expect to use about 1 litre for every 500 km."the oil level should be checked every week".........some cars have a breather on the side of the block that needs cleaning every year.(looks like a metal canister about 2.1/2" tall by 4"wide with a hose to the inlet manifold/air cleaner).

Nov 20, 2010 | 2003 Volkswagen Passat

2 Answers

When you drive it you can smell oil when it gets hot


Either oil is dripping on ur exhaust pipe and u smell it burning! Or Ur blowback oil/gas is the one ur smelling at, usually on top of ur engine valve cover there is a breather outlet connected with hose and goes thru the air claner housing! The hose might have cracks or been disconnected, check on that! Hope that might help you!

Nov 10, 2010 | 1998 Ford Escort

1 Answer

After leaving my 2001 VW Beetle idle then revving it emmits blue smoke and has failed the MOT. The oil and filter has recently been changed.


what viscosity oil did you use???
blue smoke indicates oil burn,and if valve guides, would smoke on deceleration and if rings or block breather, would smoke on acceleration,first try block breather,wash out in petrol,then refit.the mot inspector will give you NO info on why......just charge you a fortune for doing something that may not need doing!!!
invest in a workshop manual and save yourself a fortune...

Sep 02, 2010 | Volkswagen Beetle Cars & Trucks

1 Answer

Car runs great with 90000, when it idles theres a slight burning smell and then it disappears as you drive, comes back when idling, any thoughts?


You likely have an oil leak that is running onto something hot. When the car is stopped, the smoke and smell comes out from under the hood and gets drawn inside the car through the air intake just in front of the windshield.

Jan 19, 2010 | 2001 Mazda Millenia

1 Answer

1998 jeep cherokee classic smells like smoke when running


may be oil leaking and burning on manifold,could be small coolant leak but u would smell the coolant check valve covers maybe leakin,intake,breathers?????

Jun 21, 2009 | 1998 Jeep Cherokee

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