Where is the fuel pump relay located on a 88 BII?

 

OOPS, double posted

 

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.

 

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

 

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

 

I guess front to back would have been a better way to put it. It is the one closest to the firewall.

Whatever problem you're having, good luck with the fix.

 

Thanks. I have no fuel pressure and only 7 volts to the inertia switch.

 

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.

 

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.

 

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.

 

lol OK It does have two pumps. I'll give them both a wack. Sometimes I can hear the back pump just click when I t turn the ignition on. The truck has sat for a while.

 

You could try powering the pump(s) directly using a spare battery, then you would know for sure if the work, don't run them for more than a few seconds.

 

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.

 

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.

 

Running is good, glad to hear it's fixed.