1989 Jeep Cherokee blue smoke

Tiny
JHUTCH
  • MEMBER
  • 1989 JEEP CHEROKEE
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 247,000 MILES
I just recently bought this jeep, and I have started cleaning, degreasing and replacing things. I replaced the valve cover gasket and the pcv tube and now there is blue smoke coming from the exhaust and from under the hood somewhere. I did double check the valve cover bolts and tightened a couple of bolts and still the same. Before replacing the pcv tube I did notice some smoke coming out of this tube. Should I sell it or fix it.
Monday, December 8th, 2008 AT 9:19 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

Blue smoke is oil burning, I would determine if its rings or valve stem seals first, a leak down test will help here, valve stem seals will be a lot cheaper to fix than a ring problem.

Mark (mhpautos)
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Monday, December 8th, 2008 AT 11:07 PM

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