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Jeep long start when hot engine

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Old Jun 20, 2023 | 09:32 AM
  #21  
stephenspannn27's Avatar
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From: Katy, tx
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Originally Posted by Wheelermcgavin
I actually baught a first set for 89 when I received them they were oem aftermarket and send them back. So I found ones that were original mopars for 200 bucks. You have to do your research.
Once I figured out there were mopar clones out there, I didn't trust any of the ebay listings that had "too good to be true" pricing. OEM injectors from reputable sources are $100 each. I know the bosch ones I got are real.
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Old Jul 4, 2023 | 04:53 AM
  #22  
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I'm starting to think this is a PCM issue. A problem with the coil driver on the board. I've found a few examples of it online.
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Old Jul 5, 2023 | 07:55 AM
  #23  
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I installed a noid light on one of the injectors pigtails. The injectors are indeed firing during the extended crank. I need to check the coils next
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Old Jul 10, 2023 | 07:13 PM
  #24  
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Originally Posted by stephenspannn27
I installed a noid light on one of the injectors pigtails. The injectors are indeed firing during the extended crank. I need to check the coils next
I installed a diablo tune and it made no difference. If I unplug the map sensor, and the system goes "open loop" the misfires go away.
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Old Aug 17, 2023 | 09:19 AM
  #25  
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From: Brasil- RS - Tapera
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Originally Posted by Wheelermcgavin
Yes I did. I replaced the injectors and it works perfect now.
Hello, I bought my Wrangler JKU 2015 already with this same problem, long start only after more than 30 minutes stopped hot, I already measured the gasoline pressure and it is at 4 bar, I will follow your indication and change the 6 injectors.
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Old Sep 22, 2023 | 11:28 PM
  #26  
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From: texas
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I believe it to be an injector leaking by flooding the engine after sitting. Then when it sits overnight the vapors are gone. I have replaced everything but my injectors. If you change them let me know. krnl download
hdstreamz.uno

Last edited by dermzcont; Dec 7, 2023 at 01:11 AM.
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Old Sep 23, 2023 | 05:56 AM
  #27  
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Originally Posted by dermzcont
I believe it to be an injector leaking by flooding the engine after sitting. Then when it sits overnight the vapors are gone. I have replaced everything but my injectors. If you change them let me know.
I replaced my injectors and it made no change. It may be better to spend money on an inline fuel pressure gauge so you can see if the pressure bleeds intead of goning through the effort of replacing injectors.
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Old Oct 18, 2023 | 05:36 AM
  #28  
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From: rg
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I recently started a 2 second start method where I turn the key to ON and wait 2 secs before turning to Run, if I do that it seems to start every time.
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Old Oct 18, 2023 | 05:38 AM
  #29  
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From: Katy, tx
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Originally Posted by glennlathom
I recently started a 2 second start method where I turn the key to ON and wait 2 secs before turning to Run, if I do that it seems to start every time.

the same work around works for me. It’s annoying though because I can’t use remote start or it will do the long crank
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Old Jan 22, 2024 | 06:35 AM
  #30  
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From: dav
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I have replaced everything but my injectors. If you change them let me know. That's the only thing left on mine that I have not replaced. I even replaced my evap components with no succes.
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