Navigator fuel pump troubles

10-22-2007, 08:52 PM
Looking for some help on a continuing problem I'm having with my 2005 Navigator. For some reason, fuel pumps have been failing since I purchased it new in May 2005. Only use 93 Octane fuel and don't let tank get below 1/4 full! First fuel pump change in October 2006, then again in February 2007, and now the third one! No warning. Just sputtering on the interstate all of a sudden. Lincoln has been replacing them under warranty with no problem. Have 36,000 miles on the SUV. Dealership has no answer or suggestions, except maybe STP fuel treatment.

10-23-2007, 07:02 PM
Do they replace the sock filter in the tank. Do you keep the fuel filter changed annually. Do the check the pressure to be certain the fuel pressure regulator is good. I would ask them to check the voltage going the pump. Once its out of warranty you need to trade the vehicle.

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