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Old 01-24-2014, 11:52 AM
  #90721  
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I just posted a thread in the tech section for CEL codes P0120 and P1391. Anyone have any suggestions on where to start troubleshooting?

https://www.cherokeeforum.com/f2/cel...1-99xj-187068/
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Old 01-24-2014, 11:54 AM
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Originally Posted by kuzican
Nothing like using an ice scraper on the inside !
I think you need a better scraper as well. That thing does a crappy job, LOL.
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Old 01-24-2014, 01:47 PM
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Originally Posted by dukie564
why doesn't your heat work? That should be easy to fix?
Originally Posted by jimmy21669
Does your fan kick air out of the defroster or no? Better symptom description please....
when I replaced the heater core I broke the blend door and pinched some vacuum lines. I needed to get my Jeep on the road and out of my friends garage so I didn't have time to properly fix it afterwards.

the ***** that control heat/AC are useless and my defroster is slightly on, but not very well.

Originally Posted by brian0128
I think you need a better scraper as well. That thing does a crappy job, LOL.
and yes that is 100% true. I did a better job after I took the picture. it also doesn't help that I got a bunch of snow inside, and that moisture is now all over my windows.
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Old 01-24-2014, 02:18 PM
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Can you disconnect the vacuum line below the dash on the blend door actuator and manually move it to defrost mode?
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Old 01-24-2014, 02:22 PM
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Originally Posted by dukie564
Can you disconnect the vacuum line below the dash on the blend door actuator and manually move it to defrost mode?
haven't tried. also just got the LEDs in the mail, and just looking at these things they're sick! can't wait to get them mounted and wired up.
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Old 01-24-2014, 02:48 PM
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yea i got some also - they look good i'm going to wait till after winter to mount them up though - LEDs not so good at melting snow/ice off them plus they look so clean right now...and my truck...is not
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Old 01-24-2014, 02:54 PM
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Originally Posted by dukie564
yea i got some also - they look good i'm going to wait till after winter to mount them up though - LEDs not so good at melting snow/ice off them plus they look so clean right now...and my truck...is not
Lol, my olympus led light bar went from black to a golden color due to the sun and fading. Plus moisture collection inside the glass. Handles the snow and ice though
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Old 01-24-2014, 03:47 PM
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Originally Posted by sycoglitch
Lol, my olympus led light bar went from black to a golden color due to the sun and fading. Plus moisture collection inside the glass. Handles the snow and ice though
They aren't as bad as people seem to think. LEDs and snow...not Olympus. They're bad. And that color shift is because they anodize the bars instead of powdercoating them.

My LED bar gets warm to the touch, and I've read people have measured the lens at temps in the 90s with sustained use. Same goes for Truck Light LED headlights.
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Old 01-24-2014, 05:09 PM
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Originally Posted by NewKindOfClown
They aren't as bad as people seem to think. LEDs and snow...not Olympus. They're bad. And that color shift is because they anodize the bars instead of powdercoating them.

My LED bar gets warm to the touch, and I've read people have measured the lens at temps in the 90s with sustained use. Same goes for Truck Light LED headlights.
Ppl have stated what the TL leds don't melt snow well. I haven't had an issue with snow not melting when i Do use it
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Old 01-24-2014, 05:16 PM
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Originally Posted by sycoglitch
Lol, my olympus led light bar went from black to a golden color due to the sun and fading. Plus moisture collection inside the glass. Handles the snow and ice though
Could you post some pics? I'd be interested to see.
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Old 01-24-2014, 06:28 PM
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Originally Posted by 96xjclassic

Could you post some pics? I'd be interested to see.
Of what the lightbar?



Maryland Cherokee Club-forumrunner_20140124_192636.jpg


Maryland Cherokee Club-forumrunner_20140124_192612.jpg
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Old 01-24-2014, 07:06 PM
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Originally Posted by sycoglitch

Of what the lightbar?
Pretty sure he meant the discoloration and condensation.
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Old 01-24-2014, 07:43 PM
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Originally Posted by brian0128
I just posted a thread in the tech section for CEL codes P0120 and P1391. Anyone have any suggestions on where to start troubleshooting?

https://www.cherokeeforum.com/f2/cel...1-99xj-187068/
I would trace the wires coming off of each of the sensors involved and see if at some point they combine into one wire and perhaps there is a problem where that joining takes place.
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Old 01-24-2014, 08:03 PM
  #90734  
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Originally Posted by NewKindOfClown

Pretty sure he meant the discoloration and condensation.
Aaahhh.

Tomorrow will do
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Old 01-24-2014, 08:51 PM
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Originally Posted by NewKindOfClown
Pretty sure he meant the discoloration and condensation.
Ding ding ding.
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