Question about Peugeot Cars & Trucks
Grey blue smoke from exhaust it goes after a few miles whats causing it
Blue'ish smoke is caused by burning oil. Sounds like you have hardened valve stem seals. When they get hard, they allow oil to seep into the cylinders while it sits over night. When you start the car it takes a little while to burn out the oil. In the early stages once you are running it will seal up OK, but as time goes by it will begin to seep even while you are running. Using full synthetic may help the smoke because the synthetic oil will not burn. You can also go 10,000 miles between changes. (Watch your oil level though since you will not be changing every 3000).
Hope this helps.
Posted on Mar 17, 2014
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Posted on Jan 02, 2017
White smoke is caused by coolant or water coming out the tail pipe. There is a chance that the white smoke was caused by water splashing up from a puddle onto the exhaust pipe. Keep an eye on the coolant level in the radiator in any event.
Let us know how it goes or if the problem persists. We're looking forward to how things go for you.
Posted on Jun 16, 2008
Blue smoke come from burning oil. This means that you have an oil leak somewhere that it is getting burned up and exiting the muffler. First thing I would do would be to check your engine oil level. After you are sure that it is good, I would suggest taking the vehicle to a mechanic to have them see if they can find where the leak is. Let me know if you have any other questions. Thanks for rating my response and for using FixYa!
Posted on May 25, 2009
check turbo tubes for oil. If wet turbo is leaking. otherwise you may have rings leaking, how is compression?
Also there is a crankcase pressure soleniod in left side of enigine block, it should NOT rattle.
Posted on Jul 02, 2009
There are indeed traces of oil coming out of the exhaust. Blue smoke is burning oil. Grey or white smoke is usually coolant/water going through the engine. This can be caused by leaking head gaskets, valve guides depending on the engine, excessive blow-by, etc. Large amounts of oil are not good; and water is even worse. I would look at getting the head gasket replaced. The loss of power is because neither oil or water likes to burn, and once your engine clears it out, it probably runs ok for the rest of the day. Then I'm guessing the next morning, it comes back. This is an urgent fix, because prolonged leakage can damage the engine block, head, or both.
Posted on Oct 19, 2009
Testimonial: "thanks for the advice i will get it looked at asap"
Tips for a great answer:
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.
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