fuel pump

[badknee]

i have a 96 chev 1/2 ton 250,000 miles. the original pump went out four years ago.now i have to put one in about every 6 to 8 months.at first i had a mechanic change it but now i do it myself with the same life span.really sick of this problem.i dont let it go below half and change filter and sock. any advice or suggestions?

[deadeye]

Make sure the connection at the wiring harness is in good shape. Its pretty common for it to be worn/loose and cause the pump to short out from all the arcing. Pigtails are cheap and can save a lot of headache.

Otherwise try a different brand. When I was slinging auto parts we had a really terrible brand and once we switched brands the problems were gone. Maybe even bite the bullet and get a dealer pump.

[jeffreyd]

we had the same problem with "auto part" store fuel pumps. Went to the dealer, paid the extra price and have not had issues in failures since. Also as noted above make sure that the harness and connection are good, i also recommend a dab of dielectric grease in the connector.

[Esox_Magnum]

If you plan to keep her till she dies do what my old man did to his, cut a hole in the box over the tank and just screw it back in. Takes about 25min to change a pump this way.

[Jeremy airjer W]

NAPA or A/C delco are the only two brands that should be installed. The other brands do not last!

[jeffreyd]

i did that on a truck that had a spray rig in the bed. rather than having to worry about dropping the tank in the desert on a fire someplace, it offered a method to replace as noted very quickly. I agree with Airjer, however on the crown vics we ran into problems with the Napa ones too. We ended up going dealer, pay a bit more but less hassle when having to replace.

[Hwood]

Me and my 98 have butted heads on that one more that once. Sounds like you have gone through a heck of a lot of pumps. Do you have any other problems with things burning out? I am not pro on this but I wonder if your amps or volts are off in the truck.

[Big Buck Buster]

I think that is a bunch of B S with the NAPA fuel pumps being good. I had one that they wired backwards from the factory. I have had more NAPA pumps go bad under warranty, and just past warranty.

[Jeremy airjer W]

I think that is a bunch of B S with the NAPA fuel pumps being good. I had one that they wired backwards from the factory. I have had more NAPA pumps go bad under warranty, and just past warranty.

Let me rephrase that. The Delphi line from NAPA are good pumps. If your buying fuel pumps with your wallet your going to get burned. Buy the ones that work and your less likely to have issues.

I have replaced at least a couple hundred pumps with the NAPA line and the only one that failed was a less expensive option that was the only one available in a pinch so we had to use it. The pump didn't fail but the pins in the sending unit burned up.

[PierBridge]

Quote:

The Delphi line from NAPA are good pumps

Bingo!

[deadeye]

Yeah its sort of confusing trying to figure out what is good and what isn't. Delphi, Bosch, AC delco, airtex, denso, are all decent and have similar defect rates.

There are a lot of no name brands out there that are pretty shoddy though. Just about any cheap house brand and mid range prices are going to be a gamble if you will get a good one.

To make matters worse when a parts house changes brands the products get reboxed with the new brands label. You end up getting a handfull of crappy pumps in the new good line because its really relabeled junk. When we went from Carter to airtex we had that exact problem. It was very frustrating to say the least. You almost have to inspect the pump itself to see who made it.

Usually I say if you like your car and plan on having it more than six months get it from the dealer and you won't have to worry about it.

[badknee]

just wanted to tell every one i changed pump again and found bad ground wire . well actually brought it to mechanic and he found bad ground wire hopefully fixes problem for good.

[Jeremy airjer W]

Did he still change the pump? Or he didn't notice the ground until after the pump was replaced?

[badknee]

i changed the pump and it wouldnt turn on. so i checked it with a battery and it turned on. i figured there was another problem but i wasnt going to use my other day off to figure it out.so to the shop it went and standerd rates applied.im hoping this is why they were burning out on a regular basis.

[catch22]

I put a NAPA delphi fuel pump assembly in my 96 Z71 a few weeks ago. I wanted to do just the pump...but one of the fuel lines broke clean while trying to get the fitting loose. They were soaked for over 24hrs prior, but after one broke, I broke the other intentionally, then jammed a wrench into a slot in the frame to anchor the fuel line end and had to use a 1/2 socket to get both fittings out of the fuel lines, rusted to the inth. I did the FPR as well, used a delphi part also, man that was fun. I spent about $400 total for both parts, not sure what I would have been charged at a shop. The 5.7 went from stumbling to straight arming.