Question about 2000 Ford Expedition

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Intermittent no start, very strange, very confusing

Truck wont start sometimes after being driven for about 20 mins and then left off for about 20 mins, normal crank, no fuel at engine, fuel pump not coming on, get it towed once off tow truck starts right up as if nothing happened.  Reproduced problem at home, only this time there was fuel at engine and could hear pump come on, would start but die immediately, left it for about an hour went to start same as before where there was no fuel and pump didnt come on, cycled key 4-5x times and started right up. reproduced again at home (a different day) checked for power at pump, when starts power at pump =13.5 volts when not starting power at pump = 9 volts. All relays/fuses are good, inertia switch is good, battery is good. Any suggestions????

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Sounds like fuel pump going out. I was told by a friend that the pump can get stuck and that by knocking on the fuel tank or by attempting to start that it can kick the pump out of the bad spot and it will start. But it is a sign that it needs to be replaced.

Posted on Jun 15, 2009

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