white smoke on decel
Thread Starter
Joined: 03-14-2016
Posts: 1
From: indiana
white smoke on decel
When I go over half throttle and let off when cruising car blows white smoke and exhaust smells hot like catalyst is plugged? Thinking turbo might be bad, checked intake side of turbo and impeller had quite a bit of endplay. Just trying to figure this thing out.
Platinum Member
Joined: 12-06-2009
Posts: 11,721
From: Alabama
A little info such as year, model and mileage would help.
Fwiw. Burning oil will "kill the cat" so to speak. What's your oil consumption rate and how long has this been occurring ?
Surprised that you'll don't have a couple CEL codes popping up. Or do you ? Have you checked with a code reader yet ?
Fwiw. Burning oil will "kill the cat" so to speak. What's your oil consumption rate and how long has this been occurring ?
Surprised that you'll don't have a couple CEL codes popping up. Or do you ? Have you checked with a code reader yet ?
Platinum Member
Joined: 04-09-2006
Posts: 7,043
From: Vancouver, BC, Canada
bpatton_26@xxxxx.com - you might want to consider asking the administrator, 843de, to change your member name to something other than your email address.
Using your email address openly on the web is a perfect invite for spam which can render your email address useless.
Using your email address openly on the web is a perfect invite for spam which can render your email address useless.
Deceased
Joined: 06-30-2010
Posts: 25,739
From: Kannapolis NC
Yes, whopper is correct, e-mail addresses as Usernames are bad MoJo.
And to second George, the year, mileage, and any OBD II Codes if your CEL is illuminated would be super helpful.
To me it sounds like a turbo failure, but it could be more, white smoke can also indicate coolant getting into the cylinders.
Some diagnostic detective work is required.
And to second George, the year, mileage, and any OBD II Codes if your CEL is illuminated would be super helpful.
To me it sounds like a turbo failure, but it could be more, white smoke can also indicate coolant getting into the cylinders.
Some diagnostic detective work is required.
Senior Member
Joined: 09-07-2008
Posts: 1,016
From: Mebane, NC
No, that's really funny.
If you're feeling end play with the turbo shaft I think you may have found your issue. Since the turbo bearing area has oil and coolant around it you might want to consider getting it fixed before you have more problems than white smoke on decel
If you're feeling end play with the turbo shaft I think you may have found your issue. Since the turbo bearing area has oil and coolant around it you might want to consider getting it fixed before you have more problems than white smoke on decel
Senior Member
Joined: 09-07-2008
Posts: 1,016
From: Mebane, NC
yea. my brother had one go on his cat powered Peterbilt. The bearing went out at which point the seal went out and it oil pump pumped ~ 4 quarts of oil into the intake tract before he go it shut down. That is how you have run away diesels.. just need a fuel source, doesn't matter if it diesel fuel or hot engine oil if it will ignite the engine will run.
For those who don't know, a diesel doesn't have a throttle body, it how much fuel you feed it that creates the power and regulates the RPM. So when it runs away you have to either cut the fuel supply of block the air flow or you have a big boom
For those who don't know, a diesel doesn't have a throttle body, it how much fuel you feed it that creates the power and regulates the RPM. So when it runs away you have to either cut the fuel supply of block the air flow or you have a big boom
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