Question about 2001 GMC Jimmy

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Hi...my transmssison oil is leaking form breather and dripping on the exhaust and making a huge cloud of smoke and is been doing that for several months...do i have to rebuilt the trans??or theres another solution??????

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Are you sure your not overfilling the transmission? Your Jimmy should be at normal operating temperature and idling when you check the fluid level.

Posted on Apr 11, 2011

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Posted on Jan 02, 2017

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Why is my 2000 kia sephia blowing blue smoke from the tailpipe. it has 86,000 miles. the check oil warning light is on even though the dipstick reads full.


The most common cause of blue exhaust smoke is oil leaking past engine seals and into the cylinders where it then mixes and burns with the fuel. This is most frequently seen in older or high mileage cars with worn seals and gaskets. It only requires a very small amount of oil leaking into the cylinders to cause excessive blue exhaust smoke.

Blue exhaust smoke only at start-up can indicate worn piston seals or damaged or worn valve guides which may also cause a rattling noise. An external engine oil leak can drip onto hot engine and exhaust parts causing what appears to be blue exhaust smoke. Other possible causes of blue exhaust smoke include: piston wear, worn valve seals, a dirty or non-functioning PCV valve, worn piston rings, an intake manifold gasket leak, worn engine oil seals and possibly even head gasket failure.

Oil leaking into the cylinders can cause a rough idle, misfire and fouled spark plugs. In addition, a reduction in power and oil loss can be indicators that the blue exhaust smoke is caused by an internal engine oil leak. Internal engine oil leaks can also allow fuel to mix with the oil in the crankcase which will degrade the oil and prevent it from adequately protecting the engine.

Operating a car with a severely dirty oil filter, air filter or improperly functioning PCV valve can also sometimes result in engine oil blow-by, oil loss and blue exhaust smoke. Periodically checking the engine oil level with the oil dip stick will indicate if there is excessive oil consumption. Higher viscosity engine oil can sometimes temporarily reduce the amount of blow-by; however, this is not generally recommended. Excessive blue exhaust smoke indicates a possible internal engine oil leak that should be inspected by an ASE certified mechanic.

Dec 08, 2014 | 2000 Kia Sephia

1 Answer

WHY DOES MY 1996 GALANT BLOW OUT A HUGE CLOUD OF SMOKE WHEN I START IT THEN GOES AWAY IM USING A TON OF OIL


Hi Joseph, I'm glad to help!

When engine get a lot of miles on them the seals get hard and bridle and allows oil you slip by and it goes out the exhaust in at cloud of smoke. Here's a way to see if it is you "Valve Seals". When your driving it usually clears up and you have no smoke. Here's what you need to do after driving the car and it has cleared up, pull into a parking lot and let it sit and idle for 3 minutes. If a cloud of smoke comes out of the tailpipe when you take off, then you have bad "Valve Seals" and they will need to be replaced. Hope this helps and have an awesome day Joseph.

Mar 22, 2013 | 1996 Mitsubishi Galant

1 Answer

Seat alhambra leaking oil from exhaust and smoking


The most likely cause is a worn bore and the oil is leaking past the rings. It is possible that the oil is entering the combustion chamber through a breather.

Jan 19, 2013 | Cars & Trucks

1 Answer

Loosing oil , dont see any under car though


That much oil would be very obvious as a leak, so if you cannot see any spread on the underside of the car, nor any drips on the ground, it must be going down the tailpipe.

This could be due to worn or broken piston rings, or leaking valve stem seals. To test, allow the engine to warm up, and idle it for several minutes, then watch the exhaust while an assistant revs the engine abruptly. If you see a cloud of blue smelly smoke emerge, the engine is burning oil.

Jan 05, 2012 | Cars & Trucks

1 Answer

Hi, I have a 2007 Edge SEL Plus, and after highway driving and coming to a stop at traffic lights I smell burning oil and see a little smoke coming from under the hood, I only have 28k on the vehicle and...


Either you have an oil leak dripping onto the exhaust or an engine breather pipe is loose or ruptured. Eitherway have these checked out as they pose one or both of a fire or health hazard.

Jan 16, 2011 | 2007 Ford Edge SEL Plus

1 Answer

1994 Lexus ES300 large cloud of smoke when the car is started. Also, drove for several miles on the freeway then parked. When the car started, no smoke until I hit the first stoplight, while idling it was...


Valve stem seals can cause this problem, but normally only when first started. Oil in the rocker cover seaps through the oil seals into the cylinders and is burnt up on start up.
Try a "STOP A LEAK" additive and it may reduce the oil consumption and smoke.
I found some on e-bay and it worked on my tired old escort. It even stopped the rattling tappets.

Aug 23, 2009 | 1994 Lexus Es 300

1 Answer

Porsche 993 turbo 1995 oil leak


this a turbo problem, you must to repair turbo

Jun 29, 2009 | 1996 Porsche 911 Turbo 3.6

1 Answer

I noticed my subaru leeking oil, i checked the oil level and was fine and eveytime i drive fast there is a small bit of smoke and burning smell from the engine can anybody help???


Hi, you may have a valve cover gasket leak that is dripping on the exhaust manifold. I would inspect the valve cover area for oil spots and rim leaks. The smoke is coming from the dripping of the oil on the manifold or, lower exhaust pipe.

Please rate and god bless:)

Apr 15, 2009 | 1997 Subaru Impreza

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