Problem Reports

Lincoln Navigator

Report: Check Engine Light Due to PCV Grommet Vacuum Leaks

Lincoln Navigator Problem

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Model Years Affected: 1998, 1999, 2000, 2001, 2002, 2003

Average Mileage: 112,512 mi (80,000 mi - 130,000 mi)

A vacuum leak from the PCV grommet vacuum leak can cause the Check Engine Light to illuminate. The molded rubber hose connections may crack and collapse, causing the vehicle to run roughly. A damaged PCV hose will require replacement.

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