Car Problem Reports

Mercury Grand Marquis EVP Sensor Failure May Cause Drivability/Fuel Economy Issues

 
Mercury Grand Marquis Problem
10 Reports
Me Too
Edit

Model Years Affected: 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997

Verified

The EGR valve position (EVP) sensor can fail on this vehicle. The EVP sensor measures the EGR valve position and transmits the date to the engine control computer. If it fails, drivability and fuel economy can suffer, the Check Engine Light will commonly illuminate.

Ask a Question