Tip & How-To about Engines & Components for Toyota Camry V6

Oil leaks in the 3VZ V6

The older 3VZ V6 engine will often leak oil after 100000 km or so. This can drip on the exhaust and smoke and smell awful. The leaks happen from the rear (right bank) cam cover gasket, distributor o-ring seal, and oil filter adapter bracket to block o-ring.

When replacing these it is best to use genuine Toyota gaskets and seals, as the aftermarket parts don't fit as well, and don't last as long.

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2 Answers

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

2 Answers

i have a 99 grand am 2 door 3.4l v6 and it is eating a lot of coolant, i was just wondering if anyone could tell me why


that series engine has a lot of problems with the water pump and water pump gasket. check for fluid leaking under neath the engine on the passenger side. its not a bad fix to do it yourself

Feb 12, 2011 | 1999 Pontiac Grand Am GT

1 Answer

My toyota vienta 3VZ-FE 1996 - oil leak onto exhaust


Hi,

That engine will leak oil from

- cam cover gaskets (rear one drips on the exhaust)
- camshaft end seals
- distributor shaft o-ring (appears on top of transaxle housing)
- oil filter bracket to block o-ring seal (drips on front bank exhaust)
- crankshaft nose oil seal (have done with timing belt change)
- rear main seal (expensive, leave it be)

Dec 06, 2009 | 1996 Toyota Camry

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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