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Vinman

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If I thought my A/C wasn’t keeping up the first thing I’d try is removing the cabin air filter and tossing it in the trash
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roaniecowpony

roaniecowpony

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I opened a window and the vent air volume really jumped. A year ago, I installed a tailgate table that blocked the vented tailgate.
 

AFD

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Did you try putting your softtop/hardtop back on? 😆

But for real, when's the last time you replaced your cabin filter?
 
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roaniecowpony

roaniecowpony

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Do you have jscan? I do. On record and speed 3 my evap temp, as shown in jscan, is 42 degrees when outside temps are above 95.
Got it. I'll fire up jscan.
 

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roaniecowpony

roaniecowpony

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Did you try putting your softtop/hardtop back on? 😆

But for real, when's the last time you replaced your cabin filter?
There's a cabin filter? I thought those were only on goochi cars with mood lighting and those have "lifetime" filters
 
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AFD

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There's a cabin filter? I thought those were only on goochi cars with mood lighting and those have "lifetime" filters
Fair enough! Think my JL is only the second vehicle I've owned that's had them. Heck, my dad's JK Sahara had the enclosure, but shipped from the factory without a filter installed at all.

Imma get a snorkel for mine. High-flow HVAC for the win! 😂
 
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roaniecowpony

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It's likely my cabin filter is responsible for carrying off a good portion of the dirt missing from the Rubicon trail and some Moab and Big Bear trails. I haven't looked at it since starting rock crawling a couple years ago. Also, I noticed the Jeep is leaning slightly on that side where the filter is.
 
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Wabujitsu

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It's likely my cabin filter is responsible for carrying off a good portion of the dirt missing from the Rubicon trail and some Moab and Big Bear trails. I haven't looked at it since starting rock crawling a couple years ago. Also, I noticed the Jeep is leaning slightly on that side where the filter is.
Is it possible you’re just having hot flashes?😉
 

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roaniecowpony

roaniecowpony

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Is it possible you’re just having hot flashes?😉
Hmmm. I'm gonna check all my medications to make sure my wife didn't mix up hers with mine.
 

arnie_mueller

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Thanks for all the replies. I found out what everyone stated by driving it and trying it.

Can I trouble some of you to toss a thermometer in your center driver side vent and run your system on Max next time you drive it and post the temperatures here? I can't get below 44-46F. My truck and my wife's car (both R134a systems) get noticeably colder.

Give me 90 minutes and I'll get on this after my next meeting. I need to go to the store to get some cilantro and jalapenos for my guac anyway. I have one of those infrared thermometers. By noon it should be 90 here and sunny here.
 
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roaniecowpony

roaniecowpony

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Give me 90 minutes and I'll get on this after my next meeting. I need to go to the store to get some cilantro and jalapenos for my guac anyway. I have one of those infrared thermometers. By noon it should be 90 here and sunny here.
Thank you
If you have a regular meat thermometer, I think that would reflect more closely to the air temperature.
 

Jeffy56

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Lately the coolest output is close to 40°F center passenger vent. Ambient 94-98°F. Recirc on, 5000'. Recirc should give slightly higher fan out with a clean filter. I've rebuilt and/or upgraded a R12 and a couple of R134 systems. I would suspect the 1234 system will operate at higher pressures. My cabin air filter has been changed twice in 1 1/2 yrs and 14K miles. I'll check calibration of the analog thermometer, which was a good grade unit. My overall view of the system is it's marginal. I will run the "max cooling fan" Tazer option when I'm near the next destination. 2018 JLUS, 3.6, 62K miles. Calibration is good, as seen in last pic.

Jeep Wrangler JL "Max A/C" 20240820_092620


Jeep Wrangler JL "Max A/C" 20240820_094349
 

arnie_mueller

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Ask and ye shall receive

Thats running i
Thank you
If you have a regular meat thermometer, I think that would reflect more closely to the air temperature.
Running it for 25 minutes in a drive to the store

Jeep Wrangler JL "Max A/C" IMG_2481
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