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I'm in the process of purchasing a 1970 Mercury Cougar, the engine is a 351. My question concerns the factory A/C. The A/C unit works but does not blow out cold air. Any possible solutions would be greatly appreciated as I live in a very hotttt climate. I was wondering if it could be the A/C condensor. Any help for a newby???? Thanks
 

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Could use a charge.I think there is a kit that can convert from the r12 to the r 134 setup. Plus before you do anything i do a leak check 1st to see if all is well..No need to recharge it if it has a leak in the system..

thanks
Pat
 

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Have it checked out by someone that specializes in AIR CONDITIONING SYSTEMS. Charging can be expensive, so need to know the condition of the complete system FIRST. Normally, NOT a do-it-your-self project, NORMALLY....

Dale in Indy
 

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I bought a new compressor for mine at Advanced Auto, $130.00 (plus old core). Pumped out all the old fluid (freon) in it and it held vacuum at 29 lbs for two hours +. Changed the valve to accept R-134a and it never really got what I would call "cold"...so I called a friend that still had a 30 lb canister of R-12 and re-charged it and it gets so cold now the wife complains and rolls her window down. While stopped at a Casey's store the other day, a guy came over to tell me it was leaking coolant from underneath.... I smiled and told him it was the condensation from the air conditioning...he about fell over to hear that on a car that old it still worked...I thought "me too". Bbbbbbbbbbbbrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr.....
 

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I bought a new compressor for mine at Advanced Auto, $130.00 (plus old core). Pumped out all the old fluid (freon) in it and it held vacuum at 29 lbs for two hours +. Changed the valve to accept R-134a and it never really got what I would call "cold"...so I called a friend that still had a 30 lb canister of R-12 and re-charged it and it gets so cold now the wife complains and rolls her window down. While stopped at a Casey's store the other day, a guy came over to tell me it was leaking coolant from underneath.... I smiled and told him it was the condensation from the air conditioning...he about fell over to hear that on a car that old it still worked...I thought "me too". Bbbbbbbbbbbbrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr.....
R-134 works nearly as well as R-12 if all components are in good working order. It's been used in new cars since 1994ish and I never hear anyone complaining that their new car A/C isn't cold.

When converting an old car to 134, you must get the correct components. I have an original evaporator but the condenser, drier, compressor, hoses and expansion valve are all from Classic Auto Air and set up for 134. I'm getting 38* air out of the registers which is cold enough for me.
 
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