Question about 1983 Mercury Grand Marquis
I have a problem with a 1998 Mercury Grand Marquis. I have replaced the spark plugs because of a hesitation problem. I got a code that stated a misfire on cylinder 4. My father has not ran the care for about 2.5 months prior to it running. After replacement of the spark plugs I tried to start the car and it did not run. I check for gas and NO pressure was on the fuel rail. I replaced the fuel filter and at that time I checked for fuel coming from the fuel pump. I had my dad turn ON and OFF the ignition key to run the fuel pump. Neither a sound nor gas was being pumped from the gas line. I am next going to check for power to the fuel pump. All fuses tested good. I also changed out the fuel pump relay with an exact match from another relay. I can hear it click under the hood when turning the ignition to ON. MY QUESTION: Is it necessary to drop the fuel tank when replacing the fuel pump assembly? It looks accessable from under the car. It is located just behind the rear axle in the middle of the fuel tank. If I jack the car up with proper supports or put it on a car lift, it looks like I could remove it without dropping the tank. Do you know this to be true? Please let me know Thanks.
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
Hi there.... In regards to dropping the tank to get at the fuel pump, Yes you have to drop the tank. It's not only the pump that comes out of the tank it's the whole assembly including the float which tells you how much gas is in the tank. you have to have enough room to manuver the float out and the whole assembly is approx. 6-10 inches long. Hope this helps you out
Posted on Jan 09, 2009
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Posted on Jan 02, 2017
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