1993 Nissan Sentra blue smoke from tailpipe

Tiny
CONRAD LAYMAN KRUSE
  • MEMBER
  • 1993 NISSAN SENTRA
  • 125,000 MILES
My car was blowing blue smoke from the tailpipe, I put a new pcv valve on and it seemed to have fixed the problem for about a month. Then I noticed it started blowing blue smoke again. It is not continuous, it seems to blow smoke after the engine warms up. Got a solution? Could the pcv valve be bad again? What powers the pcv valve? Thanks.
Wednesday, June 5th, 2013 AT 1:32 PM

3 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Most likely the valve seals are worn allowing excessive oil to get to the cylinders or exhaust system
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Thursday, June 6th, 2013 AT 10:12 AM
Tiny
CONRAD LAYMAN KRUSE
  • MEMBER
  • 2 POSTS
Thanks for your response will get help from a local mechanic.
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Sunday, June 9th, 2013 AT 1:35 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
You're welcome.
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Sunday, June 9th, 2013 AT 5:37 PM

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