95 Explorer fuel problem
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Joined: Jan 2003
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95 Explorer fuel problem
I have a 95 Explorer, the fuel pump runs forever (when cold) and wont start until it finally builds up pressure and shuts off, sometimes a couple minutes. Any help would be appreciated!
Postmaster
Joined: Dec 2001
Posts: 3,742
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From: UT
A lot of questions:
If you first turn the key on without starting it, the fuel pump should only run for a few seconds. It's a timed event rather than having any kind of feedback control. If the fuel pump runs longer than a few seconds, there's something wrong with the fuel pump circuit or the computer's control over the fuel pump circuit.
How are you measuring the build up of pressure? the fuel pump has a check valve in it that is supposed to prevent gasoline from flowing back into the tank while the engine is off. This check valve frequently goes bad. Have you put a fuel pressure gauge on it? Once the system is pressurized, how quickly does the pressure bleed off once the pump shuts off.
the fuel pump runs forever (when cold)
wont start until it finally builds up pressure
