I have blue smoke coming out of my tailpipe and the fuel mileage went from 22 mpg (highway) to 13.8 mpg (highway). Can anyone tell me what to do?
Aug 27, 2010 at 11:35 AM
Blue smoke coming from exhaust
2007 NISSAN MURANO
JFAKTOR
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Hello,
It sounds like one of the piston rings has broken allowing oil and low compression on one or more cylinders how does the car seem to run? Also you could have plugged drained back oil holes which can fill the top of the engine with oil or the PCV valve needs to be replaced
Here is a guide to help us
https://www.2carpros.com/articles/blue-smoke-from-engines-exhaust
Check out the diagrams (Below). Please run this test and get back to us.
It sounds like one of the piston rings has broken allowing oil and low compression on one or more cylinders how does the car seem to run? Also you could have plugged drained back oil holes which can fill the top of the engine with oil or the PCV valve needs to be replaced
Here is a guide to help us
https://www.2carpros.com/articles/blue-smoke-from-engines-exhaust
Check out the diagrams (Below). Please run this test and get back to us.
Image (Click to enlarge)
Aug 27, 2010 at 5:46 PM
Thanks for this post I had this problem and had to get a new PCV valve cost me $32.00 all fixed i love this site.
Aug 20, 2019 at 11:48 AM
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