97 Ford Expedition 2WD 4.6L. Looking for advice/input on fuel pump brands

hello,

Having diagnosed a weak fuel pump (thanks to ScannerDanner’s videos), I would like any input/experience/advice on what aftermarket fuel pump I should (or shouldn’t) choose.

It will be going on a ‘97 Ford Expedition, 2WD, 4.6L, with 260,000 miles. It is still limping along on the original fuel pump, if you can believe that.

I’ve generally always gone with Motorcraft parts. But a new Motorcraft pump is significantly more than many after market pumps, like Delphi or Airtex.

Just wanted to hear from anyone that has good/bad experiences with pumps from the many aftermarket suppliers. Maybe you all have a brand that you’ve installed with no problem, or possibly there is a brand most would definitely stay away from.

Thanks.

motorcraft if at all possible airtex and spectra would be the worst imo delphi is an oe pump for many car manufactures so i guess that would be second on the list for me

Agree with Tim - MC really would be the best way to go. I spend way too much of my time at work chasing aftermarket parts.

Delphi if MC isn't an option. NO stand alone pumps, assemblies only.

Tyler wrote: Agree with Tim - MC really would be the best way to go. I spend way too much of my time at work chasing aftermarket parts.

Delphi if MC isn't an option. NO stand alone pumps, assemblies only.

Good point! It can be tempting to change just the pump when confronted with the price difference

Thanks for the input, folks. I was probably never going to get anything but a Motorcraft hanger assembly. Just wanted to hear that from others.

I’ve run into a bit of a problem hunting down the correct pump. Depending upon what site I search, I either get Motorcraft PFS50 or PFS51 as the correct pump assembly. Heck, they may be identical. Hoping one of ya’ll can answer this question. Just some more info on my Exp. It’s a VIN 6 (Windsor), 4.6, XLT. Standard suspension. 2WD.

I would call your Ford dealer parts department and give them your vin they should be able to tell you what Ford part number fits your truck then use that Ford number to find the correct motorcraft number with the Ford number they gave you.

RockAuto distinguishes the PFS50 for 4WD, so I'm thinking the PFS51 is for 2WD. Unfortunately, RA doesn't stock the PFS51 any more. :silly:

Tyler wrote: RockAuto distinguishes the PFS50 for 4WD, so I'm thinking the PFS51 is for 2WD. Unfortunately, RA doesn't stock the PFS51 any more. :silly:

PFS51 is listed under fuel tank sending unit. It does look like they are on closeout.

www.rockauto.com/en/catalog/ford,1997,ex...l+sending+unit,4436#

Actually, after a long chat with Ford, looks like it is the PFS50. There is a front and rear facing float apparently. Depending upon when your vehicle was built (before or after April 1997) will determine which one, according to them. Mine is the PFS50, even though it's 2WD. We'll see which one I have when I pull it out of the tank. It hasn't failed yet, but it will.