Question about 1999 Lincoln Navigator
Lincoln Navigator 1999 is running lean in bank one and two. How do I solve problem?
Why is my navigator running lean thats why my check engine light is on
Posted on Sep 29, 2009
On your Navigator the most likely failure that will cause a lean condition on both banks is the PCV tubing. Start at the PCV valve in the passenger side valve cover and follow it to its connection to the intake manifold, and closely inspect the rubber elbows in the tubing for vacuum leaks.
Posted on Jun 28, 2009
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Posted on Jan 02, 2017
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