Car Problem Reports

Dodge Ram 1500 Check Engine Light Due to Pinched Leak Detection Pump Vacuum Lines

Dodge Ram 1500 Problem
30 Reports
Me Too

Model Years Affected: 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007

Exhaust & Emissions Affected: Gasoline

Average Mileage: 119,592 mi (25,000 mi - 200,000 mi)


If a Check Engine Light illuminates indicating leak detection pump (LDP) failure, the cause is often pinched or disconnected vacuum lines to the pump. Vacuum lines should be inspected before replacing the leak detection pump. Contamination (carbon or debris) in the pump can cause failure and any hoses should be cleared before a new pump is installed.

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