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Fuel Pump Relay?

Tiny
ROACH5050
  • MEMBER
  • 1992 FORD RANGER
I'm now looking for wiring diagrams, if there's one around here please point me to it.

When I try to start it, the fuel pump won't 'wind up'.
I break out the voltmeter and see that I have power (12vdc) on the switch side of the pump relay. However when I turn the ignition on, the relay coil terminals has only 2.X volts.I assume it should be about 12vdc to switch the relay and send power to the pump. Where does this power come from and what could be causing the drop?

The wires that bring the relay on are _red_ and _blue+orange stripe_. Looks like the blue w/ stripe is #24 at the firewall Tstrip.
I've jumped out the relay and the pump is working, but still won't start.

Thanks for any help.
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Saturday, September 18th, 2010 AT 2:19 PM

18 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Here is the relay location with a guide to help test it.

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit


https://www.2carpros.com/forum/automotive_pictures/12900_ranger_3.jpg



Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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Monday, April 29th, 2019 AT 5:54 PM
Tiny
ROACH5050
  • MEMBER
  • 3 POSTS
I think that would be of help, but I cannot make out any of the wording. I may be getting a little older.

Any way we could resize it? Or link it?

Thanks alot for the quick response
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Monday, April 29th, 2019 AT 5:55 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Don't come out right this time, give me your email addy


https://www.2carpros.com/forum/automotive_pictures/12900_fp1_36.jpg




https://www.2carpros.com/forum/automotive_pictures/12900_fp2_16.jpg

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Monday, April 29th, 2019 AT 5:55 PM
Tiny
ROACH5050
  • MEMBER
  • 3 POSTS
My email is: roach505050@hotmail. Com

thanks alot
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Monday, April 29th, 2019 AT 5:55 PM
Tiny
37FORDRATROD
  • MEMBER
  • 2 POSTS
  • 1992 FORD RANGER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 230,000 MILES
When you turn key on relay works test light and goes out. Whenyou go to crank it, it never comes on again.
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
BLUELIGHTNIN6
  • MECHANIC
  • 16,542 POSTS
Check for a set or faulty inertia switch, located under right side of dash below the glove box
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
RBRUCE
  • MEMBER
  • 1 POST
  • 1992 FORD RANGER
  • 6 CYL
  • 4WD
  • MANUAL
  • 292,000 MILES
Recently my fuel pump has been running after the key is turened off. I bought a new fuel pump relay, and when I pulled the old relay out the pump continued to run. Why?
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
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The black and yellow wire is shorted to the dark green and yellow within the fuel pump relay wiring

Pull the fuse no.1 in the power distribution box this will caused it to stop which is the black and yellow wire that powers the relay
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
LGG55
  • MEMBER
  • 1 POST
  • 1991 FORD RANGER
Electrical problem
1991 Ford Ranger 6 cyl Two Wheel Drive Automatic 135k miles

checked fuses, power dist. Box, relay, inertia switch.
Still no power where connects to fuel pump?
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
Hello, need more info, did you check for voltage at the fuse circuit, voltage at the load side and control side of relay?

Are there any codes?
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
DWG0
  • MEMBER
  • 2 POSTS
  • 1991 FORD RANGER
  • 4 CYL
  • 2WD
  • MANUAL
  • 102,000 MILES
When u turn key on fuel pump wont shut off u can keep fliping key off and on it might shut off I replaced fuel pump, pressure regulator, relay THANK YOU
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
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I want you to remove the ECC Power relay does the fuel pump continues to run
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
DWG0
  • MEMBER
  • 2 POSTS
I don't know where the Ecc relay is located and what if it does stay on?
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Sounds like its gonna be the computer control of the fuel pump relay
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
KKCARTER
  • MEMBER
  • 1 POST
  • 1990 FORD RANGER
Electrical problem
1990 Ford Ranger 6 cyl Two Wheel Drive Automatic

WHERE IS THE FUEL PUMP RELAY LOCATED ON THIS VEHICLE
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
INTERNETMECHANIC
  • MECHANIC
  • 700 POSTS
My info showed under the hood passenger side.


https://www.2carpros.com/forum/automotive_pictures/512072_ranger_fuel_pump_relay_1.jpg

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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
ROBBYSTRUCK
  • MEMBER
  • 1 POST
  • 1990 FORD RANGER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 101 MILES
Would like to know were the fuel pump relay is.
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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS


https://www.2carpros.com/forum/automotive_pictures/12900_fp_12.gif

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Tuesday, November 24th, 2020 AT 8:17 AM (Merged)

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