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Old 06-06-2013, 10:40 PM   #1
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Fuel pump

Ok so how hard is it to do a fuel pump on a 1997 with the 4.0. Pump isn't bad but the regulator is. Just bought the jeep the guy before me just had the fuel tank skid plate replace. I heard that was the worst part. Any thoughts???

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Old 06-07-2013, 10:50 PM   #2
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Nobody really ???

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Old 06-07-2013, 11:09 PM   #3
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This is a pretty good write up on it. You may not even have to remove the pump module to replace the regulator. I'll check and post back.

DailyDrivenTJ-Fuel Pump Repair
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Old 06-07-2013, 11:17 PM   #4
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.
Quote:
REMOVAL
The combination Fuel Filter/Fuel Pressure Regulator
is located on the fuel pump module. The fuel
pump module is located on top of fuel tank.
(1) Remove fuel tank. Refer to Fuel Tank Removal/
Installation.
(2) Clean area around filter/regulator.
(3) Disconnect fuel line at filter/regulator. Refer to
Quick-Connect Fittings in this group for procedures.
(4) Remove retainer clamp from top of filter/regulator
(Fig. 1) . Clamp snaps to tabs on pump module.
Discard old clamp.
(5) Pry filter/regulator from top of pump module
with 2 screwdrivers. Unit is snapped into module.
(6) Discard gasket below filter/regulator (Fig. 2) .
(7) Before discarding filter/regulator assembly,
inspect assembly to verify that o-rings (Fig. 3) are
intact. If the smallest of the two o-rings can not be
found on bottom of filter/regulator, it may be necessary
to remove it from the fuel inlet passage in fuel
pump module.



INSTALLATION
The combination Fuel Filter/Fuel Pressure Regulator
is located on the fuel pump module. The fuel
pump module is located on top of fuel tank.
(1) Clean recessed area in pump module where filter/
regulator is to be installed.
(2) Obtain new filter/regulator (two new o-rings
should already be installed) .



3) Apply a small amount of clean engine oil to
o-rings. Do not install o-rings separately into
fuel pump module. They will be damaged when
installing filter/regulator.
(4) Install new gasket to top of fuel pump module.
(5) Press new filter/regulator into top of pump
module until it snaps into position (a positive click
must be heard or felt).
(6) The molded arrow (Fig. 1) on top of fuel pump
module should be pointed towards front of vehicle (12
o’clock position).
(7) Rotate filter/regulator until fuel supply tube
(fitting) is pointed to 10 o’clock position.
(8) Install new retainer clamp (clamp snaps over
top of filter/regulator and locks to flanges on pump
module).
(9) Connect fuel line at filter/regulator. Refer to
Quick-Connect Fittings in this group for procedures.
(10) Install fuel tank.
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Old 06-07-2013, 11:26 PM   #5
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I have a 02 TJ 4.0L and did a fuel pump assembly replacement on mine, we both have the same procedure. It was actually very easy and I am one without much mechanical experience, only needed a few simple tools. Just MAKE SURE you get a "Strap Wrench" to twist and tighten the locking nut on top of the fuel pump. But when you tighten it, do NOT overtighten, it will crack the seal. Other than that like I said, easy.

PB blast the bolts a day or 2 before, and I had a helping hand to adjust the gas tank, this is pretty much a must,
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Old 06-08-2013, 07:12 AM   #6
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Thanks guys this was a big help.
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Old 06-08-2013, 07:29 AM   #7
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Stay far away from Airtex Brand Pumps (Poor Reliability)
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Old 06-08-2013, 07:50 AM   #8
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Send a message via Yahoo to ChaddG
Just did my skid plate, and fuel sending unit.
bought the spectra premium brand off amazon.
145.00
best deal around.
skid plate off ebay 120.00
set of straps 70.00
the hardest part was lining the ring back up on the tank so it seated properly.
I drained my tank to about 2.5-3.0 gallons.
used a jack and a piece of wood to support the skid after I put the new pump in. and used my feet to stabilize the skid. the straps secure the tank to the skid. the skid attaches to the body with 7 nuts.
took me about 3 hours.
1 hour to sand and bedline the skid.
next time I do it I will raise the jeep up 6 inches on stands so I have clearance to put the tank back in easier.
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Old 06-08-2013, 12:58 PM   #9
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Where straps bad or did you just replace them because you had the off.

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