Blue smoke on extended idle. 2006 4.8is.

[Christiano]

Hey, I remembered something. It might sound crazy but, replace the fuel filter before any service on heads or pcv. Low quality gasoline can cause blue smoke too. It "melts" the interior of the filter and all ends up in the combustion chamber, causing smoke and loss of power.

Hope that helps.

Chris

[goflyhelo]

Originally Posted by Christiano

Hey, I remembered something. It might sound crazy but, replace the fuel filter before any service on heads or pcv. Low quality gasoline can cause blue smoke too. It "melts" the interior of the filter and all ends up in the combustion chamber, causing smoke and loss of power.

Hope that helps.

Chris

Thank you Christiano!