White smoke when starting.
Thread Starter
Racer
Joined: May 2005
Posts: 436
Likes: 0
From: Stavanger
White smoke when starting.
When i starts my car i have a lot of white smoke. But once it starts to warm up it is like normal. Youst wondering if the reason for this is that the compression is higher when the car is warm????
Annyone know?
Annyone know?
Tech Contributor
Joined: Aug 1999
Posts: 14,373
Likes: 6,371
From: At my Bar drinking and wrenching in Lafayette Colorado
I doubt you have a water problem. If you did, you would get steam out the exhaust regardless of whether you run the engine hot or not, and you'd be consuming anti-freeze. Is your coolant level dropping?
A puff of white smoke out the tailpipes on initial startup is generally oil. If you look close, you'll probably see a blue-ish hue to the smoke. After engine shutdown, oil will seep down the valve guides and into the combustion chamber. On startup, it will burn out and cause the "white" smoke. You won't get it when you re-start the engine hot since the oil hasn't had time to seep back down again, but let it sit long enough, you'll get the puff.
Replace your valve seals as a start. If your car has about 100,000 miles on it, the guides are likely worn, too.
A puff of white smoke out the tailpipes on initial startup is generally oil. If you look close, you'll probably see a blue-ish hue to the smoke. After engine shutdown, oil will seep down the valve guides and into the combustion chamber. On startup, it will burn out and cause the "white" smoke. You won't get it when you re-start the engine hot since the oil hasn't had time to seep back down again, but let it sit long enough, you'll get the puff.
Replace your valve seals as a start. If your car has about 100,000 miles on it, the guides are likely worn, too.
Thread Starter
Racer
Joined: May 2005
Posts: 436
Likes: 0
From: Stavanger
I doubt you have a water problem. If you did, you would get steam out the exhaust regardless of whether you run the engine hot or not, and you'd be consuming anti-freeze. Is your coolant level dropping?
A puff of white smoke out the tailpipes on initial startup is generally oil. If you look close, you'll probably see a blue-ish hue to the smoke. After engine shutdown, oil will seep down the valve guides and into the combustion chamber. On startup, it will burn out and cause the "white" smoke. You won't get it when you re-start the engine hot since the oil hasn't had time to seep back down again, but let it sit long enough, you'll get the puff.
Replace your valve seals as a start. If your car has about 100,000 miles on it, the guides are likely worn, too.
A puff of white smoke out the tailpipes on initial startup is generally oil. If you look close, you'll probably see a blue-ish hue to the smoke. After engine shutdown, oil will seep down the valve guides and into the combustion chamber. On startup, it will burn out and cause the "white" smoke. You won't get it when you re-start the engine hot since the oil hasn't had time to seep back down again, but let it sit long enough, you'll get the puff.
Replace your valve seals as a start. If your car has about 100,000 miles on it, the guides are likely worn, too.
Well, my colant level is dropping some. But we are talking about small volumes. I fill up the expansion tank aprox 2 times a year.
I will look closer for the blue-ish hue to the smoke.
Maybee i have some of both.??
