NavyDoc1

Today coming home from hunting, my 2000XJ started sputtering like crazy, thinking my fuel pump may be taking a dump, I have a pressure tester. Can anyone tell me what the normal pressure range is at the rail. It will sit and idle well. But add rpms and it starts sputtering

tjwalker

For your 2000, the fuel pressure spec is 49 psi, plus or minus 5 psi.

You absolutely are doing the right thing by starting with verification of fuel pressure.

Let us know what you find!

NavyDoc1

Tested it today and I'm getting 32-37psi at the rail with it occasionally fluctuating up to 43 psi.......thinking ill be dropping the tank tomorrow and replacing the pump

tjwalker

Yup. Your pump isn't making the grade. Install the entire "assembly" while the tank is down.

Before you buy, know that there is a BIG difference in fuel pump reliability and longevity.

My favorite is Bosch. My second favorite is Carter. I don't have a third favorite.

I will not install nor will I recommend Airtex fuel pumps.

NavyDoc1

I ordered a new pump assembly with new sending unit from Summit Racing, it's a Carter

tjwalker

Fine choice. Be sure to update us if this resolves the issue; I'm pretty sure it will!

BimmerJeeper

Which write-up are you going to use?

I want to replace my entire fuel pump unit.
(Pump, filter, regulator, sending unit, ALL OF IT.)
What exactly do I order?
BOSCH Part # 67658 for $200 ?

Is this the Carter you ordered from Summit? $275
http://www.summitracing.com/parts/cr...okee/year/1998

Same part is $178 at Rock!
CARTER Part # P75040M Assembly

NavyDoc1

Yes thats the pump I ordered from summit

BimmerJeeper

Damn, $100 difference! Why did you order from Summit ? Seems like a rip off.
Which write-up are you going to use? Please take pictures and notes, if possible?
I will do this one myself, also.

Jharris09

You can the Carter P75040M on Ebay new for $160.00 shipped. I would cancel and re-order it.

NavyDoc1

I didn't pay that much for it.....I have a buddy who owns a 4x4 shop here that orders parts for me for the jeep and my 2006 Mustang......he has a business account with Summit.....gets parts alot cheaper than whats listed in the catalog or online, I'm old but I ain't senile......would never pay that much for a fuel pump.....lol

NavyDoc1

What do you mean by which write up am I gonna use?

BimmerJeeper

ie: How do you know what to do?
Are you using a DIY "how-to" that has lots of pictures, etc?

BimmerJeeper

I think I'd feel better paying $170 at rock, just in case I need to refund

Seems like a big price variance for Carter P75040M on Ebay. Are they all the same??
http://www.ebay.com/sch/i.html?_saca...75040M&_sop=15

navy digital

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