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#1
08-01-2006, 07:10 PM
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fuel pump, fuel door, trunk release failure
my 95 crown victoria wont start. I don't know if the fuel pump is bad or if it is somewhere else in the circuit. I already replaced the pump relay. whats really confusing me is why the fuel door release and trunk release quit working at the same time as the fuel pump. when I first turn the key on the pump turns on for a second and shuts off. The trunk and fuel door release also work if you push it right after turning the key on but they sound like they are not getting full voltage. From what I can see the wires look good (no corrosion or broken wires) and all fuses are good. Any advice would be greatly appreciated. thank you
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#2
08-05-2006, 08:49 PM
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Re: fuel pump, fuel door, trunk release failure
I would figure out the "No-Start" first. Hook a fuel pressure guage to the intake and monitor the pressure while trying to start.
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#3
08-06-2006, 08:21 AM
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Re: fuel pump, fuel door, trunk release failure
Look at a wiring diagram and see if you can find a common point of failure. On a friend's car she had a common point of failure behind the fuse panel. The problem plug burned and melted adjacent plugs.
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#4
08-08-2006, 04:00 AM
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Re: fuel pump, fuel door, trunk release failure
If the pump turns on and off agian that prob means the pump is not bad. WHen you turn on the car the pump will turn on and when it reaches the proper psi it will turn off agian until it is signaled that the car needs more fuel. Usually after it starts. Unless you have a leak LOL. Have you checked spark yet. Or maybe your car is just completely dead. Just enough power to run the pump a sec and then nothing. Check the other things like wipers and headlights do these work?
__________________
1998 Lincoln Navigator 1988 BMW 320i (german) 1997 Lincoln Mark VIII 2004 Suzuki GS500F 1984 Honda V45 Sabre 1990 VW Golf II (german) 1994 Lincoln TC Mechanic on the Army STRYKER
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#5
08-27-2006, 03:21 PM
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Re: fuel pump, fuel door, trunk release failure
The fuel pump works, filter isn't clogged, everything has power. It looks like the problem is either the pcm or a bad sensor somewhere because, if I trigger the fuel pump relay manually the pump works. I'm just not sure which sensors can cause the fuel system to shut off. If anyone knows which sensors I should check and how to test them that would be a big help. thank you
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#6
08-27-2006, 03:23 PM
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Re: fuel pump, fuel door, trunk release failure
AIR PUMP not fuel AIR PUMP RELAY
__________________
1998 Lincoln Navigator 1988 BMW 320i (german) 1997 Lincoln Mark VIII 2004 Suzuki GS500F 1984 Honda V45 Sabre 1990 VW Golf II (german) 1994 Lincoln TC Mechanic on the Army STRYKER
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#7
08-27-2006, 03:52 PM
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Re: fuel pump, fuel door, trunk release failure
If you say the problem seems to be low voltage, look at all grounds to be sure they are clean and tight. Loose grounds cause a lot of electrical headaches. By jumping the relay to make it work, you are bypassing ground to the fuel pump relay. If you have low voltage to the pump, it will run but not create enough pressure to start vehicle.
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Being way2old is why I need help from younger minds The sooner you fall behind the more time you'll have to catch up.  HEY Y'ALL--READ THIS Here are some of our old vehicles for sale. 
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