LQ9 fuel pump: I need some help

[RedneckWithPaychecks]

I'm not apart of any LS forums but I know some of y'all have GMT800/6.0 swapped GMT400s so I thought I'd ask here. Anyway, here's the deal. I have a friend who has a 07 Silverado 1500 Vortec-MAX. He needs a fuel pump put in. Aside from a pump, what should I do while I'm in there? I've got this on the list: AC Delco fuel pump, fuel lines (they're rusty), tank straps, and some lecturing on why you shouldn't drive around on 10 year old dry rotted tires with no tread on them. What else do I need? Thanks.

BTW: This truck has 440k miles, spent all of them in NW Wisconsin, and was a plow/salt spreader truck. I think all of this guys vehicles are exactly like that. Even his Honda Passport was a plow truck

 

[Tommy1234]

Fuel filter

 

[RedneckWithPaychecks]

Fuel filter

I think that I have one for some reason. I’ll check when I leave for work

 

[PlayingWithTBI]

What about a suction sock?

 

[stutaeng]

Looks like you have everything covered. I watched a video from Pine Hollow Diagnostics on YT (I highly recommend his channel for diagnostics). He's in upstate NY somewhere, so tons of rust on anything he sees.

Anyways, he did a fuel pump replacement on a GMT800 and his new pump had the updated wiring harness with larger wires. I believe that one was an earlier model, maybe 2000. Yours may not need that, but probably worth checking to see if you need to any solder wiring for the harness.

07 is when they did the change to GMT900, so this is a Silverado "Classic," right?

I'm assuming that it has been confirmed that it's actually the pump, right?

 

[RedneckWithPaychecks]

It is the pump for sure. I remember in the winter hearing it whine like hell. It’s a Silverado Classic 1500 CCSB 6.0 Vortec MAX 4L60e? 4L70E? I don’t think it’ll need wires, but I have enough equipment in my shop that if it needs something I can fix it.

What about a suction sock?

I haven’t heard of that, maybe I’m missing something. If that means something to keep the fuel, I do. I hope he doesn’t fill up with fuel, had 1/4 tank when he called.

 

[PlayingWithTBI]

I haven’t heard of that, maybe I’m missing something.

I guess they also call it a strainer. It goes on the pump suction tube inside the tank.

https://www.oreillyauto.com/shop/b/fuel---emissions-16775/fuel-pumps-tanks-16472/fuel-pump-strainer-16843/fuel-pump-strainer-12308/2121c7a153ca/v/a/3012/automotive-truck-1999-chevrolet-c1500-pickup-rwd

 

[RedneckWithPaychecks]

I guess they also call it a strainer. It goes on the pump suction tube inside the tank.

https://www.oreillyauto.com/shop/b/fuel---emissions-16775/fuel-pumps-tanks-16472/fuel-pump-strainer-16843/fuel-pump-strainer-12308/2121c7a153ca/v/a/3012/automotive-truck-1999-chevrolet-c1500-pickup-rwd

Yes I did get one, I've got that and a fuel filter. No idea why I have them, I don't think I've owned a LQ9, but it's labled "LQ9 Fuel System" on my shelf. Might've gotten these off a Silverado SS, I can't remember.

 

[User_name]

@PlayingWithTBI they don't use strainers anymore. They are internal on new pumps. Take it from me. I own 2 gmt 800s and have done fuel pumps on both. But mine are also both 2002 model years

 

[stutaeng]

It’s a Silverado Classic 1500 CCSB 6.0 Vortec MAX 4L60e? 4L70E?

I think the 4l65e was renamed to 4l70e in 2006, so technically a 4L70e, yes.