a/c switch question

[tkhilliard]

got a 93 p71, still has the old freon. seen the kits at walmart to convert it yourself for 35 bucks. any one ever done this on this year? mines not as cold as it used to be, wondering if any ones done it and if its a pain on theese cars.

[BMFer1]

Stay away from do-it-yourself retrofit kits, unless you wanna spend alot more money in the long run.

[reekor]

Don’t add 134a to r12 they are not compatible. Use a r12 compatible refrigerant such as duracool.

Originally Posted by tkhilliard

got a 93 p71, still has the old freon. seen the kits at walmart to convert it yourself for 35 bucks. any one ever done this on this year? mines not as cold as it used to be, wondering if any ones done it and if its a pain on theese cars.

[MT-2500]

Originally Posted by tkhilliard

got a 93 p71, still has the old freon. seen the kits at walmart to convert it yourself for 35 bucks. any one ever done this on this year? mines not as cold as it used to be, wondering if any ones done it and if its a pain on theese cars.

Your system can be converted to R-134
But it has to be doe right for it to work right.
First if it has any R-12 in it you need to be air cond certified to open system.
If it has a leak the leak need fixed first thing.

Reciever dryer needs changed and r-12 oil needs flushed out and the proper amount of r-134 freon and 134-a oill added.

here is a link with some good air cond info.
http://www.autoacforum.com/

Like BMfer1 says
But say no on that Wal mart kit.

Wal Mart DEATH KITS

You cannot properly and safely recharge an air condition system with them.

The one side stop and go gauge does not tell you what your system is doing or is over charged or undercharged.
A overcharged or malfunction air condition system can reach over 500 lbs of pressure.
Enough to blow up that can or system and freeze you at first and the burn you or blind you and if any propane /butane in there blow and light you up.

The stop leak crap and who knows what kind of oil in the kits there will stop your system for sure.
Just like pouring super glue in it.
And some kits even contain freon with a butane mixer.
Good for a big blast.

If you are going to do it do it right and safe.
Here is what you need to start with.
http://www.ackits.com/merchant2/merc...uct_Code=66773

In the older days you could just throw in a can and go.
But over the years just adding freon is getting harder to do.
Newer systems have to have the correct amount of freon down to the ounces.
Most will need pumped down and vacuumed down and the right and amount of oil and a set amount freon charge installed to get the air to cool right and the system to last.
If an air condition is low there is usually a leak that needs fixed and also a lose of lubricating oil from system.
Also air and moisture enters a low system
If you are going to try to do it get the proper type air condition gauge set with the low and high side gauges.
Hook up the gauges and get a reading with compressor running at idle and at 2000 rpm on the high and low side.
Post back pressure reading and we can help you.
MT