I replaced my fuel pump did some other underside maintenance.
I honestly think that part of the hesitation during acceleration and occasional flashing CEL I was experiencing may have been due to an aged/failing pump. Once I was done reassembling and went for gas, the Jeep felt quite different. I'm still planning on replacing the three catalytic converters (they're in a box, hopefully it will done next weekend).
Just for this job, I splurged and bought a lock ring tool from Amazon. It was $20.00 shipped but it was so worth it.
(Link:
https://www.amazon.com/dp/B07FJWM8TM/?tag=wranglerorg-20)
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I blew all the debris off the top of the tank with a compressor and gave the ring a quick Kroil soak. Keeping turning tension on the ring tool with a breaker bar and hitting its elbows popped the ring in about 5-10 wacks.
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While I had the tank open I also took care of this little chore.
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New Bosch pump installed and all ready for remounting. This lock ring tool made this all very easy. I applied steady turning pressure with the breaker bar and hit the tool's elbows with the mallet and the lock ring was on in 5-10 light hits.
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Once the tank was reinstalled and checked for function (it worked) and leaks (didn't see any), I rotated all five tires and greased the front suspension. I refilled the tank with what I'd pumped out (less than 5 total gallons) and went to fully fill the tank. A full 16.4 gallons went in with zero spit-up/burp-back.
I took my sweet-ass time doing all this tank work as it was my first time doing such on my Jeep; however, it was so worth it. I even wire brushed some spotty rusty areas on the frame that are hidden by the tank and gave them a quick hit of Rust-Oleum before I remounted the tank.
I finished off a good test drive by running past a package store for a celebratory adult beverage.