I have a question about my 1997 Ford F-250

Tiny
97STROKER
  • 1997 FORD F-250
  • 332,000 MILES

The truck has a 7.3 powerstroke and when I start it up in the cold it smokes white really bad then it turnes into light blue and also it slightly smokes light blue at operating temp. I have outruled the injector o rings. Turbo o rings, piston rings and injector cups. Could it be the fuel pressure regulator?

Do you
have the same problem?
Yes
No
Sunday, January 29th, 2012 AT 4:39 AM

2 Replies

Tiny
MHPAUTOS
  • EXPERT
  • 31,023 POSTS

Light blue smoke is oil burning, you may have bad vale stem seals and worn valve guides.

Was this
answer
helpful?
Yes
No
Sunday, January 29th, 2012 AT 4:50 AM
Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,312 POSTS

The white smoke sounds like coolant. Check to make sure the coolant isn't going low.

Was this
answer
helpful?
Yes
No
Please consider a donation if we helped you
Sunday, January 29th, 2012 AT 4:50 AM

Please login or register to post a reply.

Related Piston Ring Questions

Recommended articles