[h2omelon]

There have been a lot of topics lately on fuel pumps so I thought I would document the install on mu 99 this time.Different year models may be different. Hope this helps someone out in the future.

Step 1- Locate the connections for the flex lines to the pump.You will find them between the tank and driveshaft.Tey are a pain to get to but can be done.You will need a set of fuel line release tools for this step or a right angle pick and lots of patience.They are all three different sizes so they will only hook up one way.No need to label.They may be hidden by the plastic tank shield if your van still has this.Mine was discarded during the last fuel pump install in June!Don't make the same mistake I did buy the GM pump not the cheap one!!!! :banghead:

Next disconnect the filler neck.Then put a floor jack or something under the gas tank.Then remove the 2 bolts that hold the straps up.

By now you have probably said a few choice words lol. Next slide the tank out from under the van to access the pump.

Next unplug the 2 plugs on the pump assembly.Then you will need to remove the retaining ring.I used a right angle pick for this.

Now remove the flex lines from the old pump and install them on the new pump.Some pics of my new pump.

My new pump came with a new wiring harness for the new style connector.Pretty straight forward install.

Now just reinstall and drive :dance: Don't forget to replace your fuel filter while you're there! Now sit back and enjoy a few cold ones :cheers:

 

[astro355]

That's a nice write-up. The only thing I would comment on is that each strap is held in place by one bolt on each end of the strap. I would remove the bolts that are closer to the driveshaft. The other ones which are in your pictures have a tendency to break-off since they are longer and more exposed to the elements. The bolts closer to the driveshaft are shorter making the friction point closer to the head of the bolt.

 

[chemist]

Awesome write-up! I will make one comment here. Some fuel pumps are held in by a retaining ring that needs to be hit with a brass drift and hammer. If you have that kind, soak it in PB Blaster, have a couple beers, then soak it in PB Blaster again before taking a crack at it.

And +1 on using the GM part unless you want to change your wiring harness--wait, that's odd. You had to do yours too?

 

[95CargoVan]

That's a nice write-up. The only thing I would comment on is that each strap is held in place by one bolt on each end of the strap. I would remove the bolts that are closer to the driveshaft.

I am in the process of changing the fuel pump for my 95. From this quoteit looks like I only need to remove each bolt from the dirveshaft side of the fuel tank? I Hope to baby jesus that I'm correct. :feedback:

 

[webcat]

:goodpost:

 

[donalson]

thanks a ton for this post... something up there is leaking like max spraying fuel all over the place... i'm hopeing it's just the flex line... but either way it can't be as bad as doing that front right brake line ...

 

[astroturf]

That's a nice write-up. The only thing I would comment on is that each strap is held in place by one bolt on each end of the strap. I would remove the bolts that are closer to the driveshaft.

I am in the process of changing the fuel pump for my 95. From this quoteit looks like I only need to remove each bolt from the dirveshaft side of the fuel tank? I Hope to baby jesus that I'm correct. :feedback:

Well, Your hope has paid off. There are four, But by removing the inner two (closest to the driveshaft), you are least likely to run into seized bolts, or breaking a bolt off (doh). And by the way, two bolts removed are all you need to have that big boy fall right on you. Hope this helps, Jim

 

[donalson]

...FYI...

my '96 doesn't use the quick connect like this one... uses old school screw on fitting like at the fuel filter end (think brake line type setup)

 

[rosslato]

Great post, very well done n photographed. a yr ago i had to replace the metal quick disconnect lines to the fuel pump, what fun that was not to mention the cost of the lines. so wouldn't ya know today the fuel pump went out on me :screaming: :banghead: . did you buy the fuel pump thru a GM dealer or auto parts? how much did the fuel pump cost? thanx again for the great post.

 

[offroad safari]

nice post.... one note when you remove the tank make sure its either empty or full, anywhere in between will only cause the fuel too slosh around and make the tank unbalanced on your jack.

 

[Astrodamus]

:screaming: :goodpost: :ty:

 

[JesusOnSkates]

Damn photobucket. Wanted to share that I looked and no archives of this page at Internet Archive (Wayback Machine ) or archive dot ph. (Reason for reviving old thread.)

My 2002 starts up fine, if it ran recently, but after more than a day or so, it takes many tries to start up. Mechanic (Firestone) says pressure goes to 0 overnight. Says they recommend a new fuel pump, about $1100, which I can't afford. I asked if it could be the lines and they repeated the recommendation. I've essentially no experience as a vehicle mechanic and a small toolbox, but I'm mechanically inclined - have rebuilt lots of things - worked on my wheelchair, computers...woodworking.

Any ideas? I'm thinking it's beyond me but worth taking to another mechanic. (I guess I could start a new thread, but posting here since I'm reviving anyway.) I don't know what to look for.

UPDATE: Found a thread with lots of photos and info... still reading. Seems well beyond me n my toolbox. I could try to find someone who'll do/help with cutting a hole in the floor... while mine is a cargo van, the floor is covered with plywood, rubber and foam mattress, and more...

UPDATE 2: This post seems likely to await moderator approval forever, so I tried posting to that thread, w/o URLs and that worked. This post still seems valuable to me.