Fuel pump relay location

Hello,

Here is a guide that will help you test the relay with 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.

The orange and gray wire at the fuel pump relay is shorted together

If you are getting power to the pump and it doesn't run, you are correct. The pump is most likely bad.

Welcome to 2carpros and TY for the donation

Do you hear the fuel pump come for a few secs if not check and test the ECM B fuse 20amp and the fuel pump relay both located in the underhood fuse block, IF so check the fuel pressure if its within specs and for injection pulses from the injector/s

No pressure after new pump installed could be the fuel pump itself again-recheck the fuel pressure with a fuel pressure gauge designed for your fuel system

Hello, when you first turn the key on, no crank, can you hear the pump run for a couple seconds? Did you check the circuits at the fuel pump relay? With the engine cranking, do you have spark at the plugs? If you have good B+ and ground at the pump and no pump action, sounds like the pump.

The theft system shouldn't shut down the pump. Pull the fuel pump relay, have helper turn key to crank, use testlite, check the terminals where the relay plugs in, two terminals should be hot.

My info shows a fuel pump prime connector, doesn't give exact location, maybe near the underhood fuse box. Gray wire with connector, nothing plugged into the connector, should be in plain site, not covered-up. Use a jumper wire, run voltage to the connector, I always say to use an inline fuse on the jumper, pump should run, don't need to use the key. It's just a test circuit for the pump. Or, with the relay unplugged, place a jumper across the terminals for the load side of relay, the pump should run. The relays usually have a diagram on them? If you use a jumper on anything make sure you have the correct terminals.

When you first turn the key on, no crank, the pump should prime for a couple seconds. With the engine cranking, if there is no rpm signal and no oil pressure switch in the pump circuit, my info didn't show an o/p switch in the pump circuit, the pump won't run.

Did you check the circuits at the fuel pump relay?

No, there is no shut off. You need to get your hands on a fuel pressure gauge before doing anything else. The fuel pump only powers for 2 seconds when the key is first turned on and then continues when the computer sees a tach signal. If you confirm no fuel pump prime, then you will need to follow a wiring diagram to find the cause.

Did you check relay circuits? When you first turn the key on, no crank, can you hear the pump run?

The pcm sends voltage to the coil side of relay in order to energize, I believe pin 1. If there is no voltage there when trying to start, the relay won't energize.

Did you check fuel pressure, any codes? The diagram on the relay may differ depending on the manufacturer. You should be able to tell the switch side of relay from the coil side.