'07 JK won't start when hot - JKowners.com : Jeep Wrangler JK Forum
 
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post #1 of 1 Old 06-23-2018, 08:39 PM Thread Starter
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'07 JK won't start when hot

So I've been having this sporadic problem lately where I go to start my Jeep after it's been running, and it's like the battery is drained. Not fully dead just drained to the point where it will not turn the starter over enough. But if I leave the Jeep for an extended amount of time and let it cool off it will start up with no problem. I believe I've narrowed it down though to when it mainly happens, which is when the engine is hot and the Jeep is shut off for a short amount of time. For example when I went to get a hair cut the other day I had been driving around running errands beforehand so the engine was at regular running temperature. I was in the barber for maybe 20 minutes and when I came back out to leave the symptoms described previously occurred: when I tried to start it it sounds like the battery is drained but not fully dead and the starter won't turn over enough to start the engine. I replaced the battery and alternator about 2 weeks ago and the starter I replaced in mid February (2018). I had those 3 things all tested both at AutoZone and by my friends dad who is a mechanic and has a professional tester at home (old Snap-On model or something I'm not 100% sure). He also helped me go through any additional wiring I had which isn't much, only two led pods on the windshield, a subwoofer and a Badlands winch. The winch is the only thing directly wired to the battery, everything else is properly wired to turn on only when the key is turned in the ignition or the car is running. The battery, alternator and starter are all Duralast components purchased from AutoZone, I'm just wondering if maybe I got faulty parts or the starter is crapping out on me early. Any suggestions on where else to start looking would be greatly appreciated!
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