Question about 2006 Mercury Grand Marquis
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Posted on Jan 02, 2017
SOURCE: 2006 Ford F-150 5.4 engine. code
2006 Ford F-150 5.4 engine: code P0191 fuel rail pressure sensor circuit range / performance
First step is to change the fuel filter and test the car. If the problem still occurs: The fuel pump driver module was corroded through from salt and was malfunctioning. Bought a new one and runs great. Problem fixed. See pictures below:
This is why salt destroys cars.
Posted on Dec 16, 2010
you can try just resetting the fuel pump switch located in the car
the switch is originally in the car for in case of an accident, however, if changed, chances are you also have to reset it
in my 98 grand marquis, the switch is on the left side of the trunk
Posted on Mar 19, 2009
the very 1st thing u do is have the trouble code checked that turned on the light, there are well over 200 possible reasons for a check engine light, a fuel filter is not one of them.
Posted on May 26, 2009
Start car and use a squirt bottle of water to wet the wires and coil, if you see it spark or run rough one or both are bad, repair the wires first as they are more common.
Posted on Aug 02, 2009
SOURCE: Fuel issue on 2001 Grand Marquis
most cars have an oil pressure sensor that is tied into the fuel system that will shut off fuel pump if oil pressure is low. Ford is famous for having a yellow fuel pump cut off switch that activates in a collision - you need to locate and check this 1st
Posted on Oct 18, 2009
Testimonial: "Oil pressure during cranking? This come off the sender switch? How to bypass to "test" if engine will start? "
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