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Fuel pump locking nut removal tool which one?

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7.1K views 13 replies 6 participants last post by  losttech  
#1 ·
OK so I am trying to pull out my fuel pump and the thing wont budge and no one rents a fuel pump spanner wrench or whatever that tool is called to loosen that big ole plastic lock ring.
Any ideas on how to do it without breaking it I am assuming the new fuel pumps don't come with them from the pictures I see.
Oh also the size of the fuel pump hose that is used I was going to replace a couple of the rubber sections since I am in there.

I couple tools on amazon I am looking at since I get two day shipping.
https://www.amazon.com/gp/product/B0079GPYA4/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
https://www.amazon.com/gp/product/B004FDL3BS/ref=ox_sc_act_title_2?ie=UTF8&psc=1&smid=ATVPDKIKX0DER
Anyone who has done it help me out with a tool choice or another way to remove it?
Thanks for any help.
 
#2 ·
I've done it a million times bc I used to work for TI Auto. The locking ring is stamped steel and E coated black. The best way to undo the ring is to use a flat screwdriver and hammer. You don't need to go nuts on it. A few taps in the CCW direction will loosen the ring up. When it comes time to reinstall, same solution just in the CW direction until it stops.
 
#3 ·
Its a white plastic 6 inch nut on mine I tried some with a hammer and flathead but was worried about breaking it.
I am going to try to mess with it a bit more tonight was hotter today then I thought it would be and see if it comes off without the tool.

If anyone has done the pump can they tell me if the new ones come with that locking ring?
 

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#4 ·
losttech said:
Its a white plastic 6 inch nut on mine I tried some with a hammer and flathead but was worried about breaking it. I am going to try to mess with it a bit more tonight was hotter today then I thought it would be and see if it comes off without the tool. If anyone has done the pump can they tell me if the new ones come with that locking ring?
I don't remember having problems removing the lock ring on the 04 I parted out.

I have various strap wrenches. But don't think I used them. I think I took my 10" channel Lock wrench and grabbed a few tabs and turned it loose.
 
#8 ·
losttech said:
I never can get those to work cant get them to fit on the lines to get started. I use to small wrenches back to back pushed against each other have removed both my filters and gas tank this way with no damage to clips.
where applicable (no squeeze tabs etc...) this has been my go too for anything fuel related.
 

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#11 ·
I used a large screwdriver and a hammer. I tapped on it in a star pattern until it started to move a bit. then I used a huge pair of channel locks to unscrew it using the ribs. I did the same putting it back on. I did damage a couple of the ribs tho, so I'll be replacing it if it ever needs to come off again.
 
#12 ·
Wow didn't expect this thread to rise from the dead ended up buying this https://www.amazon.com/gp/product/B...x_sc_act_title_1?ie=UTF8&psc=1&smid=ATVPDKIKX0DER&tag=vs-auto-convert-amazon-20
It was the only way it would come off and go back on the whole thing was an absolute pain the new pump came with a cap and ring but could not get them to catch the threads.
Finally had my big ole buddy come over and press down on the fuel pump as they are spring loaded and moved up and down pushed down with all his might and the threads finally caught with me turning the tool with a ratchet.
I have no idea what it was so hard to get off and put on but it was a heck of a job that should have been a couple hours at most turned into 3 days or so of messing with it.
I would seriously consider cutting an access hole if I was to ever do it again its just a pain all around.
Funny thing was fuel pump wasn't even bad lol it was a bad ECM the whole time oh well got a good spare now.
 
#13 ·
I've always used a hammer and screw driver.

Funny thing was fuel pump wasn't even bad lol it was a bad ECM the whole time oh well got a good spare now.
When I was younger, my wife's (then GF) TJ died driving down the road. I did a little testing and determined the fuel pump was bad. After dropping the half-full tank of gas, I replaced the pump, reinstalled the tank, then was quite disappointed to find it still wasn't working. After 5 more minutes of poking around, I found one of the wires going to the pump had frayed on the frame.

That was definitely frustrating but hey, I learned a few things! :laugh:
 
#14 ·
Wasn't a fun time with that WJ lol but I did learn a lot.
I still hate Jeep for some of the design choices stupid fuel and electrical clips and stuff just buried where you cant get at it.
If anything I think the whole industry has gotten worse my friend does body work and some of the stuff he has to do now just to get a bumper off is insane.
Ultimately they don't want us to work on our cars they loose money they want us to take them to the dealer which I just refuse but I have bought my last ride so doesn't matter to me now feel sorry for future backyard mechanic types