Hello,
The fuel pump is located inside the fuel tank. Raining should not affect the fuel pump.
Does the engine crank and not start up?
Can you hear the fuel pump come on?
First you need to verify that the fuel pump is indeed faulty.
Because the fuel pump can stop working for having a faulty relay. The relay is located under the hood fuse box.
https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit
You will also need to test the fuel pressure and make sure you are getting fuel to the injectors.
You might find these articles helpful:
https://www.2carpros.com/articles/how-a-fuel-pump-works
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
I have attached the fuel pump testing and replacement procedures for your reference.
Please let me know of any questions.
Thank you.
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Wednesday, August 4th, 2021 AT 2:59 PM