How much for fuel pump and normal time to install?

Hello,

In order to replace the fuel pump, the fuel tank needs to be removed, as the pump is located inside the tank.

Here is a helpful guide:

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

Those fuel pumps can cost between $80.00 to $140.00 depending on the brand.
As for the installation it will vary as each shop has different labor rates.

It is always a good idea to call a few shops to choose the best option.

I have attached diagrams for the fuel pump replacement procedure below for your reference.

Please let me know if you have any questions.
Thank you.

Do you have about 400-500? If you havn't been involved with this sort of job before, get some help.

Yep, you need to drop the fuel tank, to replace the pump here is a video to help you see how the job is done that way you can tell if this is something you want to do.

https://www.youtube.com/watch?v=bCcueO4ALxQ

Let us know if you need anything else.

A fuel pump is lubricated by the fuel in the tank that it's submerged in but I wouldn't consider it in a category of "lubricated parts" although I would bet that there is some warranty company trying to do that.

The filter is probably the only other thing to deal with at the time but have him make the the electrical plugs have good tight contacts. GM has a lot of problems with them.

Is there a check engine light on, did you check fuel pressure

Make sue the fuel tank is as close to empty as you can get it. Disconnect the battery, remove the mounting straps from the tank and the tank will drop down and out. I would suggest using a floor jack to lower the tank. It could be heavy. The fuel pump is on the top with one large retaining clip holding it in. Remove the clip and the pump comes out.

If you have other questions, let me know.

Joe