Question about 2000 Mercury Grand Marquis
Hello, Check for a switch in the trunk, on the drivers side. If you have Air Suspension, the switch for the fuelpump is next to it. The switch has a reset button and you press and hold it down for about 2 seconds and then release it. This should reconnect the fuelpump and allow you to start the car.
The name for this switch is the Inertia switch. Its purpose is to cut off the fuel in the event of an accident. The switch can cut off when a door or trunklid is slammed at just the right frequency to trigger this safety switch. Once reset it should run normally.
If the switch keeps cutting out, you may need to replace it. It works on magnetism and sometimes the plating on the contacts erodes and it will disengage.
Posted on Mar 23, 2011
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Posted on Jan 02, 2017
SOURCE: !999 Ford Ranger
It could be the mass air flow sensor. Its mounted to the side of the air cleaner. Just unplug the electrical connection to bypass the unit. If this is the problem the vehicle should run smoothly.
Posted on Oct 08, 2008
you need to determine if you have spark at plugs while turning the engine over,or if you don't have enough fuel pressure to fire it up,you will need at least 55psi of fuel pressure at the fuel rail to start
Posted on Jan 20, 2010
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