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How do you recharge AC on the WK2 Jeep Grand Cherokee ?

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60K views 4 replies 4 participants last post by  MMAG4X4  
#1 · (Edited)
Just as the title says it, how does one recharge the AC on a 2011+ Jeep Grand Cherokee ? I feel that the AC is not quite as cold as before - or that it takes longer to be cool - or that after 5 years it could benefit from a few sips of 134a refrigerant.

On Subarus, one looks for the low pressure port, connects the hose to the port and to the can, and with the AC on, shakes the can until it empties and becomes cold in the process. I did a cursory search for "AC recharge" and "A/C recharge" without muck luck. There was no DIY thread and only a few complaints along with this response from, reportedly, the HVAC A/C engineer responsible for the system on the WK2 Jeeps (https://jeepgarage.org/f73/air-conditioning-thoughts-24109.html) I also looked up on the WK2 Jeep Wiki page.

So is there a DIY set of instructions hidden somewhere ? Is this something one can do on his own or is it a dealer-only ticket ? Thanks.
 
Discussion starter · #3 ·
I've changed the cabin filter twice already (over the life of the vehicle). I saw the L on the cap by the driver side just ahead of the windscreen but I did not see the high pressure port conspicuously marked. Yes, there is a port by the radiator marked with a warning about a UV Dye but I was unsure that was the High pressure port.

Correct no topping off would be required as all A/C systems are sealed but I am yet to encounter a car that would not benefit from 125 mL of refrigerant after several years of heavy use. Thank you for confirming the low port, I will do a bit more research; hopefully others will chime in. I do not think I have a leak.