Fuel Tank

[Toomanyhobbies]

My fuel pump is going bad and my tank is likely too rusty to put it back in. There are no aftermarket ones as far as I can tell and a new OEM one is like $600. Has anyone used a similar one from a different GM truck that fits? If not next stop is the junkyard for me.

 

[OR VietVet]

I could not find one at RA or Amazon and the 2 numbers I found are 20757344 and 23138362 that is a superceded number from 20912107. They look different from each other.

Look at GMPartsWarehouse.com for them. They are over $500.

 

[treehan77]

Isn't your tank plastic? Mine is...

 

[Fless]

My '04 LT's tank is plastic. Did the fuel pump a few months back, just the pump, using the old lock ring. Tank metal ring was good, too, but we don't have a lot of rust in these here parts. (You can take that two ways...)

Pic is with new fuel pump installed. YMMV Rust is from where it touches the frame.

 

[HiHoeSilver]

Yup. Plastic. Just make sure you don't knock a bunch of rust into it during replacement. I live in salt/rust central. My pump didn't even die. The lines rusted out and it was shooting fuel under the truck. Lol. I used a new lock ring and sprayed the head of the new pump with bedliner. Sprayed the straps, too. Here is before and after.

 

[OR VietVet]

God, that after one is soooo pretty!

 

[Fless]

^^^ x2, a thing of beauty!

 

[George B]

Do yourself a favor and pop that tank pressure sensor out before you toss the old pump module. I had a brand new module come with a bad sensor. Got an evap vent performance code. Nothing like dropping the tank twice....

 

[treehan77]

I pressure washed my tank inside and out and wiped it with a rag before replacing the pump. Wanted to be sure there weren’t more charcoal pellets or trash floating in it.