A/C

chaman · 06-07-2010, 12:18 PM

Hello everyone
I dont know much about cars in general so I have a question,
my a/c needs to be recharged but someone told me that because my cherokee is to old they cannot do it without doing some conversion.

So the question is: is that true? what kind of freon does my cherokee need?

Its a 1991 cherokee laredo

Thanks

Mr2Jeep · 06-07-2010, 12:27 PM

When your Cherokee was produced they were still using R-12 refrigerant. They used R-12 up to and including the 1993 model year. In 1994 and after every vhehicle manufactuter was required to use R-134A. So if your Cherokee hasn't been retrofitted to use R-134A the A/C system must be converted over to use the new R-134A.

Note: You can recharge with R-12, however it will be costly.

TrekkerJmm · 06-07-2010, 02:55 PM

Quote:

Originally Posted by chaman

Hello everyone
I dont know much about cars in general so I have a question,
my a/c needs to be recharged but someone told me that because my cherokee is to old they cannot do it without doing some conversion.

So the question is: is that true? what kind of freon does my cherokee need?

Its a 1991 cherokee laredo

Thanks

I'm not sure how good it works but there is freon called "freeze 12" that supposed to work with older AC units...Tj

Bustedback · 06-07-2010, 04:44 PM

It can still be charged with R12, but it is expensive, and if you have a leak you will just waste money. Fix the leak and recharge with R12, or convert to R134? It most likely will cost about the same if you have a shop do the conversion properly. If it were me, I would fix the leak and reacharge with R12, but have a shop do it, that way you'll have some sort of warranty.

06-07-2010, 12:27 PM	#2
Mr2Jeep Newbie Garage is empty, add now Join Date: Jan 2009 Location: Key West, FL Posts: 29 My Photos 1996 Cherokee Engine: 4.0L High Output Transmission: AW4 4-Speed Automatic Transfer Case: NP231 Front Axle: Dana 30, 3.55 Rear Axle: Chry. 8.25, 3.55 Tires: Goodyear Wrangler 235's Lift Specifications: N/A Misc Accessories: High Flow Cat, Dynomax Muffler & Tailpipe	When your Cherokee was produced they were still using R-12 refrigerant. They used R-12 up to and including the 1993 model year. In 1994 and after every vhehicle manufactuter was required to use R-134A. So if your Cherokee hasn't been retrofitted to use R-134A the A/C system must be converted over to use the new R-134A. Note: You can recharge with R-12, however it will be costly. __________________ Stock 96 XJ Sport Gene Last edited by Mr2Jeep; 06-08-2010 at 07:33 AM.

06-07-2010, 04:44 PM	#4
Bustedback CF Veteran Garage is empty, add now Join Date: Feb 2010 Location: Oroville, CA Posts: 5,816 My Photos 1995 Grand Cherokee Engine: 4.0 with all of the noise and clatter Transmission: 42RE, you know, the sucky one. Transfer Case: 231J Front Axle: small Rear Axle: small Tires: 30" BFGs that are out of balance Lift Specifications: Bone stock Misc Accessories: Steering wheel cover, and a pine tree air freshener	It can still be charged with R12, but it is expensive, and if you have a leak you will just waste money. Fix the leak and recharge with R12, or convert to R134? It most likely will cost about the same if you have a shop do the conversion properly. If it were me, I would fix the leak and reacharge with R12, but have a shop do it, that way you'll have some sort of warranty. __________________ Steering stabilizers will not cure or cause death wobble, they only mask the real problem that is causing death wobble. Oil pumps do not make pressure, they create flow. Bearing clearence and restrictions make pressure. It's the crank sensor.

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