2003 Yukon XL Problem with NEW fuel pump

Hi! I'm new here.

I'm having a problem with my 2003 Yukon XL. It first started when the engine completely died without warning right after filling up on an empty tank (97k btw). I had the truck towed and they told me it was the fuel pump, so I had it changed with an AC Delco. The following day I took it on a road trip to a rather hot area. Along the road I noticed that the engine felt a bit weaker than usual and almost stalling until it died again at about 350 miles when I stopped for a traffic light. This time however, the engine started and ran long enough to get me to a service station. I only had the filters and hoses cleaned up and I drove with no problems for the rest of the trip. On the way back, however, the same problem happened again, only this time it quit while doing around 65 mph after only 200 miles. The car started again and I had the same problem 4-5 times (mostly uphill) till I got back home.

I know it was a long story, but I'm not about to pay another 900$ for a new fuel pump so I had to include all the details. Please help.

Welcome to AF, lots of guess work here, 1st if the pump is actually bad it is warranteed by GM parts and labor, second there were issues with harness connector at the pump melting, 3rd was the fuel filter changed with the job, 4th was the pressure tested to verify fp when the condition is prevalent?

Thanks!

I'm kinda noobish when it comes to car parts but here goes...
1st if the pump is actually bad it is warranteed by GM parts and labor
AC Delco is the only parts brand we have for GM where I'm from, and generally most of their parts have a one year warranty. The service, however, is done by -supposedly- GM-trained labor provided by motor agencies rather than GM since they don't have an official dealer here. In other words, the best I could manage is get a replacement from AC Delco.
second there were issues with harness connector at the pump melting
Sorry, I don't know about that :shakehead
3rd was the fuel filter changed with the job,
Yes.
4th was the pressure tested to verify fp when the condition is prevalent?
Hmmm, I guess not.


btw, y'know that buzzing sound some people get awhile before the fuel pump dies? (I snooped around the forum a bit =D )
I just noticed it's still there even after I replaced the pump.

I had a similar problem with my 97 GMC G3500 (1 ton) van. After changing the fuel pump, (I am good with electronics) it kept breaking down. I finally sent my assistant down under the truck when it was dead and found there was a harness that went from the motor to the pump and it had about a 3 foot length that had an additionl plug-in connection (probably to allow for easier tranny removal without having to go all the way to the pump to unplug it) the plug on the wires going from the main harness to the pump was along side the tranny. He played with it while the key was on and then the pump kicked in. (You can hear the buzzing until it reaches preasure) I turned off the key, cut out the damn male and female plug and heat shrinked and taped it back together. All done - untill the next guy (I ended up trading it in on a new one later) has to change the tranny! He'll have to cut it again - OH Well.
Hope this helps.

Also was the tank cleaned when the pump was changed? If the were not cleaning all of the sediment from inside the tank it will just wipe out another pump.

Hello, I have a 97 GMC 3500 HD. I have been going though NEW gm pumps like water. I noticed in one of your posts that you asked about a wire being burn. I have on each pump noticed that the pos wire on the sending unit in the tank that powers the pump. It burns out on the plastic connector. We have Soldier it several times and it keep burning out. The pump it' self seams to be working fine when we test it outside of the pump.

Any help you could give would be great.

Thank You

Welcome to AF. Burning of the positive wire/connection can be caused by a bad ground in that circuit as well as high resistance at the connection, they make a new connector plug for that connection either GM or Napa/Dorman help parts. In the future start a new thread, this is way too old when we are done this will be closed.

I have an 03 Yukon XL and the same thing happened to me. I ran out of gas, and when I tried to start, it wouldnt. I got it towed to my mech. He had me crank the engine while he banged on the gas tank with a rubber mallet. It started right away. He said the pump gets stuck if ran dry. I had him replace my fuel filter(was very dirty)while he had my truck. Picked up my truck and right away it started stalling. It was very sluggish and unresponsive unless I held my foot on the gas. Drove back to mech (stalled about 3 times before I got there). Said I had to replace my fuel pump. Before he did, he checked my throttle body and it was very dirty. He cleaned it and now it runs fine. In short, check your throttle body, make sure it is clean.

Good info but please look at the dates, this is 9 months old and inactive, thanks.