Weak Fuel Pump?

[Mazior R.]

Are fuel pumps weak on the earlier Explorers? I believe the one on my dads is going out because I don’t hear it and I know when a pump is good, you should be able to hear it. Also sometimes when I turn the key twice to prime the pump it starts up the first time when other times when I don’t do that it will take a second time to start it. His is a 2000 Limited with the SOHC if that matters.

 

[Rick]

The pumps were never weak, but they will go bad over time.

Check this thread for test procedures:

How to: - Ford Explorer Ranger Fuel pressure test procedure

Background When other forum members describe their performance issues I frequently suggest that they replace their fuel filter if due and check their fuel pressure. Yesterday Harbor Freight Tools offered their fuel pressure test kit for $10 so I bought one. The following procedure is the...

www.explorerforum.com

 

[Mazior R.]

The pumps were never weak, but they will go bad over time.

Check this thread for test procedures:

How to: - Ford Explorer Ranger Fuel pressure test procedure

Background When other forum members describe their performance issues I frequently suggest that they replace their fuel filter if due and check their fuel pressure. Yesterday Harbor Freight Tools offered their fuel pressure test kit for $10 so I bought one. The following procedure is the...

www.explorerforum.com

Yeah that’s true, it is 20 years old and almost 183,500. I remember my grandparents old one had a 99’ with 232k and the fuel pump was working good except it has a little whine to it. Do you think I should get the fuel pump assembly overhauled soon?

 

[Mazior R.]

The pumps were never weak, but they will go bad over time.

Check this thread for test procedures:

How to: - Ford Explorer Ranger Fuel pressure test procedure

Background When other forum members describe their performance issues I frequently suggest that they replace their fuel filter if due and check their fuel pressure. Yesterday Harbor Freight Tools offered their fuel pressure test kit for $10 so I bought one. The following procedure is the...

www.explorerforum.com

Just seen that other thread, didn’t see it at first but I’ll probably start with the filter since I already have it.

 

[donalds]

Is my fuel pump bad 1999 ford explorer shoc 4.0. Lots of pictures on the replacement

My truck falls on its face when 0 to full throttle like when you are getting off an highway exit Or on a hill then wot so to be clear I am getting off the highway exit then I stop wait for an opening then hit 3/4 to full pedal Then it stalls Fuel pressure check Prime= 40 psi Running = 50...

www.explorerforum.com

 

[Rick]

Yeah that’s true, it is 20 years old and almost 183,500. I remember my grandparents old one had a 99’ with 232k and the fuel pump was working good except it has a little whine to it. Do you think I should get the fuel pump assembly overhauled soon?

It's just replaced not overhauled. There should be a whine from the fuel pump, that's normal. You should be able to hear it when you turn the ignition on with the engine off. It will run for a few seconds then stop.