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Fuel pump relay location and wiring diagrams please?

Tiny
DEYMOND
  • MEMBER
  • 2 POSTS
  • 1995 CHEVROLET S-10
  • 4.3L
  • 6 CYL
  • 2WD
  • MANUAL
  • 180,000 MILES
Trying to locate the fuel pump relay on my truck listed above LS model Z in the VIN number.
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Saturday, March 6th, 2021 AT 11:42 AM (Merged)
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello,

The Fuel Pump Relay for your vehicle is located inside the glove box. I have included the wiring diagram for the fuel pump relay in the diagrams down below. Please use this wiring diagram and get back to us with how things turn out.

Thanks,
Alex
2CarPros
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Saturday, March 6th, 2021 AT 11:42 AM (Merged)
Tiny
DEYMOND
  • MEMBER
  • 2 POSTS
I took the relay completely out and it keeps running and I left if out and cranked it 6-8 more times.
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Saturday, March 6th, 2021 AT 11:42 AM (Merged)
Tiny
SCGRANTURISMO
  • MECHANIC
  • 4,897 POSTS
Hello again,

How long did your engine run after you disconnected the relay for? It did eventually die, didn't it?

Thanks,
Alex
2CarPros
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Saturday, March 6th, 2021 AT 11:42 AM (Merged)
Tiny
ALLAN T.
  • MEMBER
  • 3 POSTS
  • 1994 CHEVROLET S-10
  • 4 CYL
  • 2WD
  • MANUAL
1994 chevrolet s10 pickup, 2.2 liter engine, 2wd, regular cab, manual transmission. What is the on-vehicle service procedure for replacing the fuel pump relay? Where is the fuel pump relay?
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Saturday, March 6th, 2021 AT 11:43 AM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
It's under the left side of the dash here is a diagrams that shows the location (below) last one and a guide to help you test it.

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

Check out the diagrams (Below)

Please let us know if you need anything else to get the problem fixed.

Cheers
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Saturday, March 6th, 2021 AT 11:43 AM (Merged)
Tiny
ALLAN T.
  • MEMBER
  • 3 POSTS
Good morning:

what is the on-vehicle procedure to replace the fuel pump relay? Good morning: I can not seem to find the convenience center under the dash. The clutch, brake pedal, stick shift, floor heating vent, regular cab space, and small viewing window under the dash obstruct my ability to see the convenience center. Does ant part of the dash need to be removed? Please note, this vehicle may have been manufactured in a cross over year.
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Saturday, March 6th, 2021 AT 11:43 AM (Merged)
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
I found this image for you this shows a better picture.
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Saturday, March 6th, 2021 AT 11:43 AM (Merged)
Tiny
ALLAN T.
  • MEMBER
  • 3 POSTS
I found it and replaced it now the truck is running great thanks 2Carpros
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Saturday, March 6th, 2021 AT 11:43 AM (Merged)
Tiny
WILLIAM WHITEHOUSE
  • MEMBER
  • 1 POST
  • 1994 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 211,000 MILES
Where is the fuel pump relay located with #8 didget being w
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Saturday, March 6th, 2021 AT 11:43 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The fuel pump relay is located on the convenience center at #3 -see below


https://www.2carpros.com/forum/automotive_pictures/12900_fp1_21.jpg

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Saturday, March 6th, 2021 AT 11:43 AM (Merged)
Tiny
J. THURMAN
  • MEMBER
  • 1 POST
  • 1994 CHEVROLET S-10
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 175,000 MILES
Question is where is the fuel pump located on my 1994 s-10 pickup with v-6 w engine. Cannot find it even with the help of the dealer manual.
Thanking you in advance. J. Thurman
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Saturday, March 6th, 2021 AT 11:45 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The fuel pump relay is located in the engine compartment and a guide to help you test it and a diagram below to show you the location.

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

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Saturday, March 6th, 2021 AT 11:45 AM (Merged)
Tiny
SMASH2K9
  • MEMBER
  • 3 POSTS
  • 1990 CHEVROLET S-10
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 137,911 MILES
The ECM in my s-10 Blazer has no power input for the fuel pump. There is no coil reaction for the fuel pump relay. I have tested the electrical wiring, and am able get the fuel pump to run through bypassing it. My guess is that there could be an open circuit that is preventing power from starting up the fuel pump. Any suggestions on where to go from here?
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Saturday, March 6th, 2021 AT 11:46 AM (Merged)
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
I would look at the oil pressure switch because the fuel pump relay runs through it here are the wiring diagrams so you can see how the system works with a guide to help you test the wiring.

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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Saturday, March 6th, 2021 AT 11:46 AM (Merged)
Tiny
SMASH2K9
  • MEMBER
  • 3 POSTS
Yes, I have checked the fuel pump relay-there is both power and a ground going throughout. I have the 4.3 liter motor.
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Saturday, March 6th, 2021 AT 11:46 AM (Merged)
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok I understand you checked the relay's but did you do the tests that I have asked. I need to know what it is doing in the vehicle. Let me know what you find so we can go to the next test. I do not guess and just replace parts I test and replace what is actually bad. I am really trying to help. Also I need you to check the gray wire or it may be tan with a white stripe wire is doing. This wire also goes to the oil sending unit as a fuel pump cut off. Get back to me ok.
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Saturday, March 6th, 2021 AT 11:46 AM (Merged)
Tiny
SMASH2K9
  • MEMBER
  • 3 POSTS
Checked the drk green/white wire-there is power running through.

Checked the black wire-there is a ground.

I try turning the ignition, and power is not being sent to the fuel pump.
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Saturday, March 6th, 2021 AT 11:46 AM (Merged)
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
The ECBM fuse powers the pump here is a wiring diagram for the fuel pump. (Below) Let me know what this wire is doing. Also is there power at the orange wire at the fuel pump relay? If you are getting power to the relay and none out then this relay is no good. Get back to me with what you find ok.

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Please let us know what you find. We are interested to see what it is.

Cheers
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Saturday, March 6th, 2021 AT 11:46 AM (Merged)
Tiny
SMASH2K9
  • MEMBER
  • 3 POSTS
It was the fuse thanks for your help I cant believe I over looked that.
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Saturday, March 6th, 2021 AT 11:46 AM (Merged)

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