Any of your local auto parts stores should have your fuel pump relay. You will need to go into the store and provide them with your vehicles make and model.
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I would recommend you purchase a fleet fuel card at your local gas station for the best results and satisfactory or you can purchase one online with your air miles points.
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Th fuel relay in most situations will be under the hood in the fuse box. It will be black and square with numbers on the top of it. Often the numbers on other relays such as your horn will be able to be put in the place of your fuel relay to determine if it is truly the relay that went out.
You do not repair the relay. It will be best to replace them with know good ones.
The Relay is in a hard to reach place under the dash, along with the fuel pump relay and some others.
According to the manual and my own confirmation the fuel pump relay is located in the under hood fuse box. There are three relays ..all grey and the same part #. If you think the fuel pump relay switch is bad simply remove the fuel pump relay and "switch" with one of the other three. If the problem is resolved purchase a new relay and replace.
The main relay and the fuel pump relay are the same. Take the fuel pump relay and swap it with the main relay and see if that will help you....
Yes, the fuel pump relay turns on and off sending power to the fuel pump as needed. The best to test that relay is to just replace it with a new one. Also make sure and check the fuel pump fuse and replace the fuel filter as it might be clogged.
When the ignition is place in the momentary start position, a signal is sent to the PCM and in turn it turns the fuel pump relay on.
Swap the fuel pump relay with another like relay.