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JKU Rubicon Not Starting

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Old 09-06-2024, 09:50 AM
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Default JKU Rubicon Not Starting

Hey everyone, long time lurker here. I’m lost on my Wrangler. Long story short, wife was driving and out of no where lost all power, tried starting again but it just kept cranking. I towed it home and thought I knew the answer, I was suspecting the fuel pump was going bad. After a whole day of dropping the tank and replacing the fuel pump, all I’m getting is cranking still. I tried the whole TIPM fuel pump bypass, no luck. Have not checked spark yet, going to check it tonight, but we just had the entire engine replaced only about 6 months ago so I didn’t think to check it. Any thoughts? I know fuel is getting to the engine, I pulled a line off and cranked and fuel is spraying, but the jeep continues to only crank to no avail.
2011 JKU Rubicon, 150k miles, only after market parts are lift, tires, bumpers.

edit: no codes are popping either

Last edited by fry24; 09-06-2024 at 09:52 AM.
Old 09-08-2024, 07:40 AM
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Update on the findings about Spark..
Old 09-08-2024, 01:06 PM
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Sorry got held up by other projects. No spark, tried throwing on a new ignition coil, still no luck.
Old 09-08-2024, 03:07 PM
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It worked for 6 months.. I'd check for Gounds being loose , pinched wiring, connectors .. and maybe crank sensor
Old 09-08-2024, 03:21 PM
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M19 Fuse. Somehow I had over looked this in the beginning when trying to diagnose. At least I have a new fuel pump and a new ignition coil now



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