A/C only blowing cold on the driver side - JeepForum.com

 
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post #1 of 8 Old 05-29-2016, 12:45 PM Thread Starter
samger2
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A/C only blowing cold on the driver side

2005 WK Laredo, the A/C blows nice and cold on the driver side, but just blows room temp air from the passenger...thoughts?

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post #2 of 8 Old 05-29-2016, 01:29 PM
TurboDiesel
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blend door actuator behind the glove box???

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post #3 of 8 Old 05-29-2016, 01:43 PM
bobbylx
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Quote:
Originally Posted by samger2 View Post
2005 WK Laredo, the A/C blows nice and cold on the driver side, but just blows room temp air from the passenger...thoughts?
Try charging the system. Mine does that at the beginning of every summer. I add a can of refrigerant and all vents blow nice and cold. I have no idea why low refrigerant does this, but search the forum and you'll find quite a few people with the same results.

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post #4 of 8 Old 05-29-2016, 02:12 PM
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Quote:
Originally Posted by bobbylx View Post
Try charging the system. Mine does that at the beginning of every summer. I add a can of refrigerant and all vents blow nice and cold. I have no idea why low refrigerant does this, but search the forum and you'll find quite a few people with the same results.
Same with me. I was certain I had a blend door issue with all of the threads regarding blend doors. but a simple charge fixed it.

I could be wrong, but I don't think the blend doors are an issue with the '05 and up.
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post #5 of 8 Old 05-30-2016, 11:06 AM Thread Starter
samger2
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Thanks for the replies, I guess it would make sense to try the simplest possible fix first
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post #6 of 8 Old 06-12-2016, 09:20 AM Thread Starter
samger2
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So my wife reminded me that we had this happen once before. Sure enough I looked up the service records and found we went to the dealer a year ago and they diagnosed it as the evap core....$1,500.00.

blah
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post #7 of 8 Old 06-12-2016, 01:22 PM
Montreal300
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Manual or automatic temperature control?
If it was the core that was the problem, you wouldn't have cold air on either side.
Air comes in the cowl, through the fan and then through the evaporator. The temperature is tempered by having part of the air flow, after the evaporator, go over the heater coil. This air splitting function is done by the blend door.
With automatic dual zone AC systems there are two blend doors.
A description of the system fundamentals is attached.
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post #8 of 8 Old 06-12-2016, 02:21 PM
ggt1_02
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Just a thought, if the air is warmer in the passenger side check the recirc gear may be broke and allowing warm outside air in.

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