[rebel1]

I just changed two injectors on this truck. Started it up ran fine for five minutes while in park and then starts billowing white smoke from the exhaust. No water in the oil. Not losing oil or water. I am thinking about changing the fuel pressure regulator. Has anyone had a similar situation?

 

[Mr Mac]

Normally white smoke is oil being burned. Leaky valve guides or rings will cause this condition and it will be a while before you see a depreciable drop in oil level on the dipstick.

 

[rebel1]

Mr Mac,

Will a compression test tell me absolutly if I have a bad oil ring?

 

[Mr Mac]

It could, but, I would also pop off the valve covers and take a close look at the valve stem seals as well.