Whining sound in the fuel tank

Hi,

Test it. When you first turn the key from off to run, (engine off) see if you hear it, and then it stops and then starts again after starting the engine.

Really, that is the only thing that would make a whining noise. However, since the pump prims for a second when the key is first turned on, it may help you confirm.

As far as replacing the pump, the fuel tank needs to be removed to gain access. If you look below, I provided the directions for tank removal and replacement first and then the removal and replacement of the pump.

Let me know if this helps or if you have other questions.

Take care,

Joe

See pics below.

Rey,

There is a chance that was the issue all along. Do me a favor. Charge the battery, then follow the directions in this link. It will confirm if the alternator is the issue. Based on your description, it sounds like it is. The noise is likely due to low voltage.

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

This would also explain the battery issue with the one that was a year old.

Let me know your findings.

Take care of yourself,

Joe

Rey,

I had an afterthought. If you find the alternator isn't producing, I need you to check something else. There should be a black wire with a gray tracer at the alternator. That wire should have 12v at all times. So, if it fails the aforementioned test, confirm that the wire gets power.

If it does, I then will need you to disconnect the battery, remove the alternator, and take it to a parts store to have it bench tested. I really recommend having it bench tested for one specific reason. This charging system doesn't have a traditional voltage regulator which is part of the alternator. Instead, voltage is regulated via the powertrain control module (PCM).

I want to be 100% sure the alternator is the problem and not the PCM.

I attached the wiring schematic below for the charging system, so you have a reference. Note the wire I mentioned comes straight from the starter motor but in the middle of the wire, there is a fusible link.

A fusible link functions the same as a fuse but looks like a regular wire. If it failed, the alternator will not be getting battery voltage and won't charge.

Let me know what you find or if you have questions.

Take care,

Joe

See pics below.

Hi,

Thank you for the update. I'm glad to know at least one issue is resolved. LOL

As far as the switch is concerned, I would be happy to help. However, I have a favor to ask. To make the site more helpful to others, we request that each thread is specific to one topic. Is it possible for you to copy your new question and paste it onto a new thread?

Here is the link to start a new one:

https://www.2carpros.com/questions/new

Again, I hope you understand. I will watch for your new post.

Take care,

Joe