93 fuel pump location ?
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New User
Joined: Jul 2005
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93 fuel pump location ?
Does the year have three pumps like 87? I have looked all over the frame rail for a hi preasure pump.
Tank pumps run constanly when key is turned, instead of running for 2 seconds.
Both tanks do the same thing.
Engine will start but runs like crap.
Looking for hi preasure pump to test voltage.
93 f-150 5.8L
Tank pumps run constanly when key is turned, instead of running for 2 seconds.
Both tanks do the same thing.
Engine will start but runs like crap.
Looking for hi preasure pump to test voltage.
93 f-150 5.8L
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
try resting the computer by disconnecting battery for at least an hour.
check fuel relay in main power box under hood.
both pumps do not usually fail at the same time.
someone on this forum said it is almost never just a fuel filter that stops vehicle from running.
check fuel relay in main power box under hood.
both pumps do not usually fail at the same time.
someone on this forum said it is almost never just a fuel filter that stops vehicle from running.
Post Fiend
Joined: Mar 2002
Posts: 19,402
Likes: 38
From: Bonita Springs FL
If it gets plugged bad enough, it will. A plugged filter can cause low pressure, though. I know that from experience.
'89 and older has the inline high pressure pump on the frame rail.
'90 and newer has the in-tank pumps.
'89 and older has the inline high pressure pump on the frame rail.
'90 and newer has the in-tank pumps.
Lead Driver
Joined: Nov 2002
Posts: 9,556
Likes: 43
From: Concord, NC
I would look first at the fuel pump relay to make sure it is not stuck, keeping the circuit live. Also try pulling codes from the computer to see if there are any that might help narrow down the problem. You can pull codes yourself; follow the instructions here: http://www.thorssell.net/hbook/eectest.html
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Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
i agree with epncu2006 on the fuel pump relay, but also the wires below the relay sometimes corrode so i would add that as something to look at.
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Thanks Quik, I just noticed a steady clicking coming from the distributor cap while the ignition is on. I was looking at the relay when I herd the sound.
The engine won't start anymore.
I'm waiting for a ride to purchase a code reader.
The engine won't start anymore.
I'm waiting for a ride to purchase a code reader.
Last edited by crossedover; Jul 12, 2005 at 12:03 PM.
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
go here to learn how:http://www.fordfuelinjection.com/
you just use wire to jump connector and watch lite in dash http://fordfuelinjection.com/?p=13
you just use wire to jump connector and watch lite in dash http://fordfuelinjection.com/?p=13
Last edited by quicklook2; Jul 12, 2005 at 12:58 PM.