HELP!! ODB2 Code P1153

[99redsilverado]

pull the bed, it is alot easier, and yes ive done it both ways

[wth4ua]

Originally Posted by 99redsilverado

pull the bed, it is alot easier, and yes ive done it both ways

Well, I finally got around to the fuel pump. The whole job took about 2 1/2 hours. We pulled the bed (I recommend at least 3 people, males, to help take the bed off) and easily swapped the fuel pump. Like someone mentioned earlier, 8 bolts, disconnect a couple of connectors off the wire harness at the back bumper, and disconnect the gas line where you fill the tank up at. Pretty simple procedure, but that dang bed is still heavy with 3 people. Anyways, the fuel pump is working great, the truck cranks up right away and no wishy washy fuel gauge. Check ebay first before going to a dealership or auto parts store. I got a brand new electric fuel pump for my 99 Z71 for around $130 w/shipping compared to $850 the dealership wanted to charge me for installing one. I hope my problems have or will help someone down the line.

[Ape0r]

Wish I'd read this topic sooner! I'm working as a mechanic's assistant in the service dept. at a Chevy dealer for the summer. When a fuel pump needs to be replaced, the mechanics do some sort of trick to short the old pump (assuming it will pump at all!) and use it to pump out all the gas! As you can imagine, makes it a bit easier to simply drop the tank .

[wth4ua]

Oh well, it wasn't too bad. I would like to know that trick if you could "leak" that information.

[99redsilverado]

all you have to do is put a jumper on the fuel pump relay....itll run til you remove that jumper..

[98vert6spd]

so if you could get the fuel completely out of the tank itd be an east job?

cause mine still runs and i have plenty of other cars to drive so i could jsut stop putting gas in it till it runs out

?

i have a drop in bed liner id have to take off and a toneau cover id have to remove


if holding the tank up is the only issue with dropping the tank i have a floor jack thatll do that

[Ape0r]

Yep, jump the relay, then unbolt the ties holding the tank up, and it'll fall right off! Won't be too heavy at all, might want to support it with a jack while removing the supports anyway for your finger's sake though! Once removed, the fuel pump comes right out.

[wth4ua]

Be careful letting it fall right off, there are 3 hoses and two wire harness connectors on top of the fuel pump that will need to be disconnected before the tank can actually "fall off". You definitely don't want any damage to these. Look in my gallery at the link below for a couple of pics of the repair.

[wwwrench]

Lifting the bed it is soooo much easier to do a fuel pump modual.
Just loosen the 3 bolts on the passenger side of the bed leave about 5 threads installed, pop the 2 connectors by the bumper, take the 3 bolts out on the drivers side of the bed. Lift the drivers side of the bed about 2 feet, and you are there. Easy deal. Turns a 2 hour job into about 45 minutes. I put a block between the bed and frame while doing the modual as a safety precaution.

Doesn't work on Blazers and Suburbans / Yukons