Fuel pump relay location
Postmaster
Joined: Dec 2001
Posts: 3,742
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From: UT
Should be under the hood, passenger side, near the air filter housing. Not sure if an '88 uses a power distribution box, or just attaches the relays to fender, but that's where I would expect to fiind it.
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
On the passenger side fender & counting left to right, it's starter relay, EGR solenoid, "EGR gas recirculation valve",MAP sensor, then the fuel pump relay.
Thats how it is on my 87 Ranger, probably the same on yours
Thats how it is on my 87 Ranger, probably the same on yours
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Rub my Belly
Joined: Jan 2004
Posts: 3,093
Likes: 1
From: Lawrence, KS
Thanks guys. I'll check them out tomorrow. I just picked this thing up yesterday and remember three relays screwed to the fender. So the fuel pump relay sould be the one closest to the firewall? I get my left and rights confused. lol
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Rub my Belly
Joined: Jan 2004
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Likes: 1
From: Lawrence, KS
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Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
Check for 12 volts from the fuse link on the solid yellow at the relay. Should be there key on or off, and 12 volts on orange/light blue with key on.
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Rub my Belly
Joined: Jan 2004
Posts: 3,093
Likes: 1
From: Lawrence, KS
I have power to the yellow but not to the orange one when the key is turned on. Looks like someone had switched relay locations cause the only one with those color wires is the front one. It has a green plug on it also. I put a new relay in and no change.
We also tried putting 12 volts to the inertia switch and the wire got hot.
We also tried putting 12 volts to the inertia switch and the wire got hot.
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
My 87 has 2 pumps. but I think the 88's only had the in tank pump. Maybe it's seized up & pulling the voltage down.
Try giving the tank a good whack with your hand & see if that gets the pump running.
Try giving the tank a good whack with your hand & see if that gets the pump running.
Postmaster
Joined: Oct 2003
Posts: 4,516
Likes: 1
From: SoCal
yeah, i've gotten home a couple of times after whacking a fuel pump back to life. The last time was on an MG midget, had to pound on the floorboard about every 30 seconds to keep that pump going.
BTW, if the circuit was opened up when you got the 7 vollts, thats the problem.
BTW, if the circuit was opened up when you got the 7 vollts, thats the problem.
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Rub my Belly
Joined: Jan 2004
Posts: 3,093
Likes: 1
From: Lawrence, KS
Well It's running. I gave it a once over when it was light out. I have 12 volts when I turn the key on at the inertia switch for a few seconds. Then it will drop to seven. When I crank it, it raises back to 12. I put more fuel in the tank and it started. Apperently one gallon wasn't enough. When I put more in it fired. I feel like a tard now. lol Anyways it's running kinda rough so I'll put new fuel filters on and give it a tune up and go from there. Thanks for all the help guys.
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