v10 smokes

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Jan 29, 2011 | 05:09 PM

sanders46

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v10 smokes

every so often i start my v10 and a puff of bluish white smoke came out. today it did it every time i started it. is this from the motor being too rich or what? thanks

Jan 29, 2011 | 05:39 PM

dkf

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From: Pa

Did you just move the truck a short distance and shut it off and then later restart it? You have the stock exhaust system on the truck?

It is not uncommon for the 2V 6.8l trucks to put out a blueish white puff of smoke when started up moved and shut off right way. On the next startup the puff would appear. Both my truck and both my dads trucks (all 6.8ls) did that every once and a while under the described circumstance. When the stock exhaust was replaced (muffler and cat) the puff went away. I think the exhaust was causing a buildup of fuel somewhere.

Or you could have leaky valve seals. The smell between fuel and oil is quite different.

Jan 29, 2011 | 06:19 PM

sanders46

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thanks i guess thats it i did just move it short distances. but i dont have the stock exhaust. i guess its just where i moved it short distances

Jan 29, 2011 | 07:16 PM

dkf

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From: Pa

I think thats your culprit. A little fuel can build up and cause the puff on the next startup. It isn't anything to worry about in my experience. Usually if you let the truck run for a couple minutes before shutting it off you won't get the puff.

Jan 29, 2011 | 10:05 PM

Sand_Man

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From: Rogue River, Oregon

Eh, mine does it from time to time as well. I think DKF is right, nothing to worry about.

Jan 30, 2011 | 11:03 AM

krewat

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From: Long Island USA

Mine used to do that every time I would start it, run a minute or less, shutdown and restart the next day.

Then, I stopped filling it with oil to the FULL mark at every oil change.

Hasn't done it since.

The way to change the oil is, drain, fill new oil filter with oil, and INCLUDING THE FILTER, only use 6qts total. (For the 2-valve)

If the level is between the add and full marks, LEAVE IT ALONE and do not fill to the full mark.

Since I started doing this, mine hasn't done the BLUE PUFF.

Jan 30, 2011 | 12:02 PM

dkf

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From: Pa

I never noticed the oil level making a difference. I actually put in more oil at each change now than when the truck was new. After I ditched the stock cat and exhaust the puff never came back. Same with my dads trucks.