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Unread 02-24-2009, 07:58 AM   #1
Levinz11
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To anyone who has replaced a fuel pump.

So I checked the realy and fuses. Checked all connections that are possible to get to with out dropping the tank. And have come to the conclusion that my fuel pump has **** the bed. No warning at all. The heep drove fine to work, then when I was going to lunch it started but quickly started to gurgle and proceeded to die. I tried a few more times but gurgle, gurgle, gurgle...die. I replaced the fuel filter in the parking lot and no go.

My question for you guys is this. Since there are quite a few brands to choose from, which is the best and most complete brand of fuel pump. By complete I mean hoses, gaskets, screens everything I need to get the job done and not have to run to the parts store 3 times. Or if anyone has a list of required parts for the install that would be great.

Thanks

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Unread 02-24-2009, 08:27 AM   #2
dgasw
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fuel pump

I replaced mine about a year ago. I just went to NAPA and got the Bosch fuel pump kit (NAPA P/N "BSH
N69302 " Bosch fuel pump kit, it comes with the inlet screen, the pump, the rubber hose that connects the pump to the metal line,two clamps, new wires and some orings. Get a new rubber gasket for the top mounting area(I don't have the part number for the gasket.) I do remember that I had to reorder the gasket because the wrong one came in. Mine is from a 93' 4.0l and it is rectangular but the one that came in the first time was round. Not sure if it was my fault or NAPA's.
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Unread 02-24-2009, 08:30 AM   #3
Levinz11
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Thanks for the info man. I was looking online and some kits come "complete" and some just come with the pump.

So the gasket is square shaped on a 91 not round right?
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Unread 02-24-2009, 08:36 AM   #4
rustywrangler
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Have you gone thru the full trouble shooting of this???

I hesitate to fire right at changing the fuel pump. Do you hear it prime when you turn the key to on(not starting it)?????

Did you check the shrader valve on the fuel rail to see if you are getting fuel????
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Unread 02-24-2009, 08:41 AM   #5
jeepster93
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Just replaced my fuel pump on my '93 4.0. Died the same way yours did...one minute it was fine, then it would not restart.

There are 2 fuel pumps listed in the parts books for this engine. I needed to take the broken pump to my local NAPA to match it. it turned out to be the NAPA brand pump not the bosch one, which was too physically small. It comes with all the stuff needed to install it(new nuts/bolts, hoses, hose clamps, filter etc) in the box with the filter.
Cost was about $125.
Took a few hours, mostly dropping and reinstalling the tank, it is in there fairly tight.
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Unread 02-24-2009, 10:10 AM   #6
Levinz11
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Quote:
Originally Posted by rustywrangler View Post
Have you gone thru the full trouble shooting of this???

I hesitate to fire right at changing the fuel pump. Do you hear it prime when you turn the key to on(not starting it)?????

Did you check the shrader valve on the fuel rail to see if you are getting fuel????

Before I went to swap the filter I released the pressure at the rail and it wasnt much at all. Pump does not prime with key turned. I even left the filter off and turned engine over and nothing, not even a drop came out the hose going back to the tank.

I haven't gone through the complete troubleshooting I guess. Am I missing something?
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Unread 02-24-2009, 10:11 AM   #7
Levinz11
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Quote:
Originally Posted by jeepster93 View Post
Just replaced my fuel pump on my '93 4.0. Died the same way yours did...one minute it was fine, then it would not restart.

There are 2 fuel pumps listed in the parts books for this engine. I needed to take the broken pump to my local NAPA to match it. it turned out to be the NAPA brand pump not the bosch one, which was too physically small. It comes with all the stuff needed to install it(new nuts/bolts, hoses, hose clamps, filter etc) in the box with the filter.
Cost was about $125.
Took a few hours, mostly dropping and reinstalling the tank, it is in there fairly tight.

So did you get the Bosch or NAPA one Jeepster?
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Unread 02-24-2009, 10:13 AM   #8
Yury
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not to bust chops and it might be astupid question but do you have gas in the tank. my yj fuel gauge was shot and i ran out of gas ones untill i learned how to eyeball it
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Unread 02-24-2009, 10:13 AM   #9
Levinz11
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I clamped the hose going into the filter before removing. To test the pump after filter removal I released the clamp and turned engine over. Nothing came out. I put in three gallons just to be sure I didn't run it dry.

Is this normal????
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Unread 02-24-2009, 10:14 AM   #10
rustywrangler
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Quote:
Originally Posted by Levinz11 View Post
Before I went to swap the filter I released the pressure at the rail and it wasnt much at all. Pump does not prime with key turned. I even left the filter off and turned engine over and nothing, not even a drop came out the hose going back to the tank.

I haven't gone through the complete troubleshooting I guess. Am I missing something?
Do you have power close to the tank??? when you said checked the relay, do you mean hear it click when someone turns the key???

You can swap the relays around to see test as well.
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Unread 02-24-2009, 10:15 AM   #11
Levinz11
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Quote:
Originally Posted by Yury View Post
not to bust chops and it might be astupid question but do you have gas in the tank. my yj fuel gauge was shot and i ran out of gas ones untill i learned how to eyeball it
My gauge doesnt work either. I thought I had run it dry, so I added three gallons just to be sure.
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Unread 02-24-2009, 10:15 AM   #12
rustywrangler
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Quote:
Originally Posted by Levinz11 View Post
I clamped the hose going into the filter before removing. To test the pump after filter removal I released the clamp and turned engine over. Nothing came out. I put in three gallons just to be sure I didn't run it dry.

Is this normal????
If the pump is not priming or does not have power to it, you will not have fuel come out.
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Unread 02-24-2009, 10:16 AM   #13
Levinz11
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Quote:
Originally Posted by rustywrangler View Post
Do you have power close to the tank??? when you said checked the relay, do you mean hear it click when someone turns the key???

You can swap the relays around to see test as well.

Yes, power seems to be flowing fine throughout. I swapped A/C and horn relays, nada.
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Unread 02-24-2009, 10:17 AM   #14
Levinz11
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Quote:
Originally Posted by rustywrangler View Post
If the pump is not priming or does not have power to it, you will not have fuel come out.

That was one thing I wasn't sure of. Thanks.
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Unread 02-24-2009, 10:17 AM   #15
rustywrangler
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Well then I guess the pump or connections at the pump are the next step. Sorry, was just trying to troubleshoot abit for ya.
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