Fuel Pump Question

[Sndsational]

I have a quick question, hoping someone might have some information to share.

Recently, I have been chasing problems with my X, mostly with power and what seemed to be an intermittent problem. After reading some threads, it seemed that my fuel pump may have been the culprit ( along with a rusted tank).

My question is this:
I went to the local NAPA, bought a Bosch fuel pump and while talking to the guys at the counter, one of them said that the two looked the same (contents of box) Listed on the site, is 2 part numbers for an X...one with a 3/32 terminal and one with a 1/4 in terminal. Both boxes however came with an adapter that seemed to make the pump fit either. The guy said he did not know why they had both....so they sold me the cheaper of the two.

I looked at the specs on the NAPA website and the pumps had different pressure ratings and Gallons per Hour ratings listed. Does anyone know if Bosch made these interchangeable with the adapter?

Are the pumps essentially the same? Will it make a difference? I already installed it and drove the truck...seems ok, but if it is the wrong one, I want NAPA to know it and take care of any issues.

anyone have any insight?


thank you

 

[ranger7ltr]

They are the same except...

Some Fords has smaller terminals on the fuel pump and sending unit than others and the adapter is included with most Ford pumps to deal with that difference...

After you installed the new pump and filter, I hope, did you verify the pump pressure? Obviously the engine is running properly but verifying the pump pressure would tell you that the pump is operating ok...

I take it you didn't need to use the power adapter on the pump terminals? And what did your tank and the pump sock look like when you pulled the sending unit out and replaced the pump?

 

[Sndsational]

I did need to use the adapter....mine was a small almost square plug while the pump was a flat thin terminal. I do believe that both "kits" were the same though.

I have not tested the pressure yet...just finished it up. I will though. Pump wise however, I should be all set???

Thank you

 

[ranger7ltr]

Absolutely...

The newer Explorers run a higher fuel pressure and the demand on the pump is higher than the return line systems since they run a variable pressure based on engine load and recycle fuel back to the tank...

If the pressure was not right you would have known it immediately after you primed the fuel system and started the engine....

And I really hope your tank was not rusty/dirty like mine was as the rust inside the tank is what caused the first 2 pumps to die, I believe, and caused me to finally replace the tank...

 

[Sndsational]

Well, the pump they sold me was the one that seems to be rated with the higher pressure (by 2 psi) and higher GPH rating. so if anything it is overpowered...or the info is wrong.

As far as the tank, I thought I was going to need to replace it, but to my suprise.....it showed no rust inside (the outside however....)

When I first primed the pump, the truck started right up and seemed to rumn fine. What symptoms would I have encountered if there was a problem?

Also, to answer an earlier question of your, the filter on the pump was yellow and you could see dark gray and black through it....definately filthy and blocked up.

Hoping this solves the problems I have been having!!

 

[ranger7ltr]

If the pump didn't work...

the engine would not have run...And congrats on the inside of the tank being rust free...The filter sock is going to catch dirt and stuff that should not be in the fuel but the pores of that filter sock are large enough to let chunks of rust and dirt pass through and that is why the main filter has the inlet side that is full of crap...

And unless the particles are pretty small they will stop at the inlet side of the main filter and not foul the injectors...

Sounds like you are good to go...