Archived 12v Oil Tube Smoke

[EBottema]

Hey guys-



My dads truck we just bought might have a problem.

its a 1996 12v

There is a steady stream of white smoke coming from the downdraft tube. WE just bought it so I dont think it has the right oil in it. No loss of power, no knocking, just a steady stream of smoke, not too much coming from the downdraft tube. What do you think it could be?



Thanks

Erik

 

[Alan Reagan]

Sounds like blowby. My 98 did it and my 01 did it. It's relieving pressure from the oil pan. Mine didn't use oil but I would get the blowby oil smoke. With a car, the PCV sends that back into the system to be burned. With diesels, it is vented to free space out the blowby tube.

 

[matches]

When it stops blowing the white smoke get worried, it is a normal thing. What are you doing under the truck when it's running anyway, it's warmer in the cab.