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#1 05-25-2011 13:52:58

john
Enthusiast
Registered: 09-27-2008
Posts: 107

Fuel pump

Hey anyone know of an EXTERNAL fuel pump for my '90 4.0L

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05-25-2011 13:52:58

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Re: Fuel pump

#2 05-25-2011 13:53:57

stellarxj
Rookie
Registered: 10-05-2008
Posts: 73

Re: Fuel pump

You could possibly find one at www.summitracing.com However it will
be expensive since you need to maintain around 50 psi. The best
thing is to just pull your pump out of the tank. Yo won't have to
drop it or anything. Just rotate the lock ring counter clock wise
with a big screw driver and hammer. Should cost yo about 30-40 dollars

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#3 05-25-2011 13:54:41

bj
Rookie
Registered: 05-18-2009
Posts: 88

Re: Fuel pump

You dont have to drop the tank to remove the fuel pump from it?

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#4 05-25-2011 13:55:21

stellarxj
Rookie
Registered: 10-05-2008
Posts: 73

Re: Fuel pump

Not on any of the tanks I have seen. The lock ring and fuel lines
are on the front of the tank. Remove them and the gage assembly and
pump will come right out.

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05-25-2011 13:55:21

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Re: Fuel pump

#5 05-25-2011 13:55:51

thomas
Helper
Registered: 10-22-2008
Posts: 15

Re: Fuel pump

97 Cherokee, drop tank, pump on top, same deal loosen lock ring pull pump

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#6 05-25-2011 13:56:53

tommy
Helper
Registered: 09-27-2008
Posts: 34

Re: Fuel pump

I have an 89'. The fuel pump is on the front of the tank. I think later
in the 90's they put the pump on top. Have you checked you fuel
pressure on the injector rail? Mine was running a low pressure it would
backfire above and idle. Come to find out the hose between the pickup
and pump had slipped off. Easy fix runs fine now. A lot of time the
hoses crack or brake that causes the problem. Make sure your tank is
below half full or you will have a big mess on your hand and driveway.
While your under ther you might change your fuel filter.

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#7 05-25-2011 13:59:18

lekimxj
Helper
Registered: 10-05-2008
Posts: 16

Re: Fuel pump

I have replaced a pump on a '90, remove ring and toss it, remove pump and pickup assembly. Replace pump and get a NEW retaining ring, worth the $4-$5 dollars. Pump is on the front of tank.
By the way, have you replaced filter first?

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#8 05-25-2011 14:00:37

gordo
Helper
Registered: 10-05-2008
Posts: 18

Re: Fuel pump

I think that John is looking for a pump that he can put on his rig on
the outside that will carry enough pressure to run his and not be a
major pain in the butt to get to or work on or replace. Like cutting
the fuel line and putting an in line one.

There are different ones that you can use. Do some searching for ones
on Ford vans. Been told that they work great and are not to expensive.
Don't know what year to look for though, but I'm sure that if you
search around, someone will have done it.

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#9 05-25-2011 14:02:00

elder
Helper
Registered: 10-05-2008
Posts: 18

Re: Fuel pump

go down to your local junk yard and find a 260 or 280 z they have
external pumps located back by the gas tank worked great on my 94
cherokee

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