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Fuel pump issues

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Old 02-02-2018, 10:49 PM
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Default Fuel pump issues

To make a long story short, the wiring harness burned up near the back seat. I rewired everything, but couldn't get power to the fuel pump. I ended up replacing relay and fuses that were toast and still no power. When hooked up straight to battery to see if it would work, it fired right up. So I tried going from the fuse block under dash and hooking it up to one where there was power when ignition was on, but no luck. So I ended up hooking up a toggle switch from the battery to the pump and when I flip the switch it runs and never shuts off and won't start. Before when I hooked to the battery it would run for a second as if it primed up and then quit. No doesn't seem to prime. Any suggestions on what to do. I want to drive this thing again!!! Thank you
Old 02-03-2018, 01:25 AM
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The year of your Jeep is critical info here. The 97+ pump setup is drastically different than the older years'.

Personally, I would figure out why your repair of the original wiring wasn't working and correct it so you're not messing with toggle switch hacks.
Old 02-03-2018, 01:32 AM
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Also, did you replace the pump or not?
How did the wires burn up? External forces or did you just discover them melted for no obvious reason?
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