Just recently replaced oil pump.Didn't have to remove engine and didn't diconnect any harnesses other than battery. Truck had been sittin for about 6 months with no gas in tank. Now truck starts only with starting fluid only I put gas in truck but it won't start. I don't hear fuel pump turnig on. I checked all fuses n some relays even resetting safety switch to fuel pump. Only runs with starting fluid for a few seconds
Hi,
watch your oil pressure when cranking, you have to have some oil pressure to get the fuel system to start. you may have to find the hot wire at the relay and energize it to see if it is indeed the fuel pump going out. if its been sitting and its a 97 the fuel pump just might have went, you can also try hitting the gas tank from the outside in the middle to see if that works too. have a water hose or fire extinguisher around when your working on fuel system and leave one of your battery cable a little loose..
jm
SOURCE: 1989 mercury Grand Marquis fuel system
The fuel pump relay is under the hood in the MAXI fuse box, it is a black box with a huge wiring bundle comming out of it.
SOURCE: 1998 Mercury Grand Marquis Fuel Pump Replacement
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
SOURCE: Won't start after installing new fuel pump. After
HAVE YOU TRIED CHECKING THE FUEL PUMP RELAY
SOURCE: 2000 cougar 2.5 won't start
Hi,
Could you tell me if you have check the following:
1. MAF sensor
2. Fuel pressure sensor
3. Fuel temperature sensor
4. Inertia shut off switch
5. Throttle Position sensor.
Let me know if all the components are fitted and working correctly, I can then give you more information.
Thanks
Jason
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