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how do I recharge my AC. what tools or kit do I need


Sent to Car Experts May 24, 2005 10:01 a.m.
I recharged my 92 Dakota (with the help of a friend) but I don't remember where to connect the can of 134 refridgerant. There are 2 valves, which one do I connect to....the upper or lower?
Thanks
Customer (name blocked for privacy)
Status: Closed   Value: $5   
Answer
May 24, 2005 1:05 p.m. (3 hours and 4 minutes later)
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PictureDCM  -- Auto Mechanic -- 94% Positive Feedback on 361 Car Accepts
18 yrs Mechanic
Info Request
May 24, 2005 2:00 p.m. (54 minutes and 32 seconds later) 		REPLIED to Info Request Check Mark
Not sure what product you are using to recharge your 134a. The hose connection should only fit the low side fitting. Be sure you are not putting R134a in your system on top of the older R-12. You need have it vacuumed out by a certified technician before you can put R134a in older systems. You can buu a refit kit from your auto parts store to do this quite easily. It even comes with new fittings you screw over the existing R-12 fittings.   
Paul Schultz  -- personal experience/repair -- Expert's Profile
Shade tree mechanic
Info Request
May 24, 2005 2:16 p.m. (16 minutes and 6 seconds later) 		REPLIED to Info Request Check Mark
 There is a whole lot more to retrofitting that merely changing the fittings.
PictureTech501  -- Auto Service Technician -- 96% Positive Feedback on 739 Car Accepts
38 years exp, ASE Mastertech with L1 Advanced Engine performance
Reply to Tech501
Sent May 24, 2005 2:58 p.m. (41 minutes and 45 seconds later)
Thank you for you speedy reply. I guess I didn't make myself clear. I have a 1996 Town and Country that is not blowing much cool air. I had this same problem with another vehicle and I bought a can of stuff and a friend of mine who had the fittings necessary to acess the system helped me restore the refriderant. I will have to buy a kit, I assume, I just forgot wether the hose is connected to the upper or lower valve. Since my car is a 1996, I assume it has the new gas....134a something or other.
thanks again
Customer (name blocked for privacy)
Answer
May 24, 2005 7:55 p.m. (4 hours and 57 minutes later) 		ACCEPTED Check Mark
 Youtr assuming a lot. Your assuming that your problem is actually low refrigerant. It can be many other things and if you overcharge the system, it can pump so much pressure it will explode. Refrigerant is very dangerous to work with. It can blind you or frostbite a finger and cause permanent damage. I defenately don''t recommend just randomly adding refrigerant to a system that you don'tr even know what is wrong. You can get it professionally diagnosed and leak tested for under $40. At that point, you would only pay the cost of the refrigerant for the charge and you will know what is wrong and how much to fix it. If the problem actually is a leak, you'll be able to add in the future. Just beware that the oil is mixxed with the refrigerant and a vehicle that has been charged numeroud times will lose it's oil charge and eventually ruin the compressor. Fixing the leak is always the best idea.
PictureTech501  -- Auto Service Technician -- 96% Positive Feedback on 739 Car Accepts
38 years exp, ASE Mastertech with L1 Advanced Engine performance
Reply to Paul Schultz
Sent May 26, 2005 9:33 a.m. (1 day and 13 hours later)
Thank you Paul,
I think I read somewhere, that vehicles manufactured after 1992 came with 134a, my Town $ Country is a 1996, but I will check it out with my local dealer.
Thanks again for your info.
Customer (name blocked for privacy)
Customer (name blocked for privacy)

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