Mouse

Can I charge the Air Conditioning system on my '93 LS400 myself. The air slowly got warmer and warmer, no there is not even cool air. I remember back the days you could buy a can and connect it to the AC system for a shot of coolant. Can that still be done?

Thanks

John

hyperopt

For a 93, sure! But I would fix the leak first.

Jimbo2828

for a 93 i believe you have to use r12 right??? i forget . but is it worth it to change the system to use r134 or should i just buy r12 and refill??? cause r12 is little $$$ but its colder then r134 plus 134 is lowerin price

Dx3

iTrader: (13)

You can't legally go out and buy R-12 - you need a license for it. It will continue be harder to get a hold of R-12 so I would just bite the bullet and do the 134 switch.

Jonny

VVT-i

Fix the leak and don't waste money to buy freon and dump it into the air.

mikefly

fix the leak - that may not be easy

look into your auto parts store for r-12 replacement.
it goes under numerous trade names
and works fine. costs about $8 for a 9 ounce can
you need 33 ounces

LEXkid

So can r12A be safely mixed with r134a?

My lex needs a refil, but I"m not sure how much r134a is already in the car...

Dx3

iTrader: (13)

If there is already 134a in the car, then continue to use it.

Jonny

Tammy

The answer is you Cannot Mix R-12 with R-134a. It's an A/C shop job with special tools and techniques needed. The R-134a pressures are a bit more exacting for proper cooling, meaning too much refrigerant may seem to act as not enough.

PureDrifter

iTrader: (10)

you cannot mix R-12 with R-134a BUT you can mix some of the R-12 Replacements (synthetic R-12) with both regular R-12 and R-123a.

-Annant

toy4two

If you live in a South western state just drive over the border and pick some up at NAPA, R-12 is $15 in Mexico and $60+ in the US. They will even refill it for you, easy to do yourself though.

/Aerostar\

iTrader: (2)

Haha shaddddddddy

nthach

if you know how to work a gauge set, vaccum pump, and are confident with your mechanical skills, you can charge an AC system yourself. When I converted mine, i installed a new dryer, changed almost all the O-rings, added 9 oz of POE 100 oil, and took it to a AC shop for the evac/fill.

hyperopt

I believe 93 uses R134a as refrigerant. Check the sticker in the engine compartment to be sure.