My check engine light came on yesterday evening (1/01/09), but runs fine. This has happened before, and it's never been a problem. I've always had it checked and reset by the dealer. This morning (1/02/09) however, when I started it up and started driving off to work. I noticed an excessive amount of white vapor from the exhaust. It happened again when leaving work. It does go away once the engine reaches it's max running temp. Anyone got any answers?
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
White smoke is usually steam vapor. You may have a head gasket leak or a cracked head or block that is allowing water to seep into one or more cylinders. If water is in a cylinder it makes it hard for the piston to compress it before the exhaust valves open to expel it into the exhaust system. Water in the exhaust is then heated to steam vapor. Check to see if you have any water in the engine oil.
Water in the oil is often associated with the above situation.
It is a clear case of the glow plugs malfunction. It had happened with my neighbor who tried to start his diesel focus one day. Even jump starting with another battery didn't solve the starting problem.
You could also check the EGR valve for damages and if you want to save a couple of bucks, then go in for used parts for the focus from Good used Focus Stuff
When you first start an engine when it is cold, it is mormal the exhaust pipe will emit water vapor (white steam) and water until the engine reaches running temperature.
If this problem occurs when the engine is hot and been running a while then you could have a head gasket problem, especially if you have to top up the water in the radiator frequently.
You need to get a mechanic to do a compression test on each cylinder to determine the exact problem with the engine.
Water vapor coming out of the exhaust at initial start-up is normal; that is condensation that collects when the engine is not running. White smoke at start-up depends on a couple of things. Tell me, where do you live? When the weather is very cold, all engines will emit steam (white smoke) when they are first running; this stops after the engine has been running a while and is warm.
In short, if this is only happening at first start of the morning and goes away over time, there is nothing wrong.
If, however, the "white smoke" continues and never stops, you may have a blown head gasket.
If you're sure it's "smoke", then it's probably burning oil. But most likley it's water vapor. When an engine is first started and the air is cold, the water vapor in the exhaust will create visible steam. Automotible exhaust primarily consists of carbon dioxide and water vapor. If the engine and exhaust system are cold, the exhaust will be cooler when it comes out and it can create a cloud of water vapor. However, if it's not water vapor, as I mentioned above, it could be oil smoke. If that's the case you need an engine rebuild since you probably have bad rings.
it sounds like the oxygen sensor, air mass meter. check the crankcase breather pipe behind the engine ( cracks, common problem), it would be wise to have a computer diagnostic done, it will save u time and money