fuel pump relay

Hello,

The fuel pump relay is Its in the underhood fuse/relay center. Here is a guide to help you test it and diagrams below to show 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.

Put new pump in and now i am not getting power to my pump. check little fuses they all good. need help finding pump relay switch.

Are you cranking the engine while checking for voltage to the pump? What symptom are you trying to solve and what led up to the problem? Have you checked for spark?

am not getting no power to the fuel pump only power I am getting is the fuel level that is to the purple wire. have no power whatsoever to the grey.

After i put the pump in it fired up ran good in my driveway then when I went to take it for a ride and give it gas it sounded like it was starving for gas. when I downshifted it from third to second it just shut off. I had no gas or power to the pump.

Have you checked for spark or did you get stuck on the first thing you found missing? Fuel supply system failures account for about four percent of crank/ no-starts. Loss of spark accounts for about another one percent. Loss of spark and fuel accounts for ninety five percent of these no-starts. Once I know if you have spark, I can figure out where to start the diagnosis.

Also, you did not tell me if you are checking for voltage to the fuel pump while cranking the engine. You had better not have voltage to it if the engine is not rotating.

Electrical problem V8 Four Wheel Drive Automatic 105000 miles

Where is the fuel pump relay?

Only thing I had I was testing with a test light.

The fuel pump relay is on the right side of the firewall near the battery junction block cover. Item location no.3

Here is a guide top 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, Ken

Only thing I had I was testing with a test light

I will be back tomorrow to see if you checked for spark or answered any of my other questions. You should have zero volts feeding the fuel pump unless the engine is rotating.

will not stay running. Replaced fuel pump as well as all the lines. can not locate the fuel relay to check it out. Any help would be much appreciated!!! Thank you so much ..... Terri

VIN code? California model? See image.

I doubt it is a california model, it was purchased new in Ohio. Is the VIN code part of the VIN number? Sorry, I am researching this for my boyfriend so we are back and forth on the phone as I am serching for an answer. He has been trying to get the truck to run for over a week now, and has replaced the fuel pump 3 times! Also, he replaced all the fuel lines. The truck starts, but will only go a few yards. I believe he also said the psi is low....? Thank you SO MUCH for your time in replying to me!

Yes, the VIN code is part of the VIN#.
Have him spray carburetor cleaner into the air intake and see if that keeps the engine running. If so, he has a fuel delivery issue. No matter which engine (VIN code) it is, the fuel pump relay is located in or near the main relay/fuse/junction box. The code basically tells us which location in the box it is.

You said he mentioned the fuel pressure was low. How low? Can he rent or borrow a fuel pressure tester from a parts store to check? Have him listen for the relay and pump activating when he turns the key to On and Start. Have him use a meter or test light to see if the fuel pump (in the fuel tank, at the top) is getting power.

Engine Mechanical problem
1996 Chevy Truck 6 cyl Two Wheel Drive Automatic

were is the fuel pump relay at on a 96 s10

Fuel Pump Relay

V8 two wheel drive automatic.

i cannot find the relay for my fuel pump. i had to replace the rubber lines due to cracks and wear, i did not disconnect the wires to the pump when i dropped the tank. i removed the pump and placed a plastic bag over it to protect it from debris, then poured the old gas out. i replaced the lines, re-installed the pump and tried to prime the pump by switching the ignition on/off but now i do not hear the pump running or the relay. i checked the fuses and were good but could not find the relay. i bought the replacement part hoping to make a visual match but no luck. any answers?

On firewall passenger side two relays bolted to wall pump on right.

i saw where you speak of but only one relay and is nowhere simillar to the repacement i bought from autozone.

What model ?

1987 chevrolet 1/2 ton 2wd 5.7ltr 350ci TBI customdeluxe 10 P.O.S.

I have a no start and have replaced the fuel relay and still nothing everything I've read said to check the ecn b fues, but I can't find the location. Can you help me with that?

That is the fuel pump relay do not know what Auto Zone gave you. Find orange and red wire jumper this will hot wire pump.

If it cranks good, but, won't start, have helper crank it, while you visually check for spark at the spark plugs. If you have spark everywhere, use a gage and check fuel pressure. How long since a tune-up? Are there any applicable mil codes? You can check mil codes, yourself. Use a jumper wire between the A & B terminals at the datalink connector. Turn key just till dash lites come on, no further. The mil lamp on the dash starts flashing. You count the flashes to get the codes. Your looking for two digit codes.

To test for spark, you can use a spark tester. Plug it into the spark plug boot, ground metal part of tester to metal part of engine, engine cranking, watch for spark at the tester. The autostore sells a spark tester, doesn't cost much. There are other ways to check for spark, but, the tester is the safest, if you don't like getting bit by secondary ignition voltage, which I don't.

Do you still want the location of fuse box?

The fuse block is under left side of dash.

I ran into the same problem, Auto Zone does not carry anything like this, and LMC Truck caries the same thing as Auto Zone. Where can I get the right part?

Engine Mechanical problem
1994 Chevy Truck V8 Two Wheel Drive Automatic

where is the fuel pump relay switch located, under hood where, is it inside something. or is it under the dash

attached to passenger side firewall, under hood..

Where is the fuel relay for a 1993 Chevy 4x4 350ci automatic work truck?

The fuel pump relay is located on right side of firewall near battery jucntion block-see item location no.3 below

can you tell me where these are located and what exactly they do?

your vehicle does not have an intertia (fuel cut-off switch) and the fuel pump relay is similar to a switch that flips on and off. when key is turned on in ignition it flips the "switch" (fuel pump relay) on which allows electrical current to flow to the fuel pump. your vehicle's fuel pump relay is located on the right side of the firewall , behind the battery junction block cover.