Charging AC

Cold = Lowside = Carge side Hot = High pressure side= DON'T CONNECT THIS SIDE FOR CHARGING.

If you con'tknow what you are doing, don't. My guess is that the low pressure fitting is near the firewall and the high pressure fitting is by the rad. If you can run it at all, feeling the lines to and from the compressor will tell you quick enough. Compression makes heat, so it makes sense that the high pressure side line would be hot coming from the compressor.

Of course, a set of gauges completely solves the problem.

rq

You'll want to use the low pressure side for charging. Should be the larger of the two lines and have a plastic cap with a 'c' on it. Please be careful, and consider having it evacuated and recharged with a machine. These newer AC systems are very finicky and will not operate well without the EXACT prescribed weight of refrigerant.

I second that opinion. Though in the past I've recharged a/c systems (both R-12 and 134) I've become a little chastened by what "Ray O" , a very experienced Toyota tech said recently on alt.autos.toyota. He DOESN'T work on the a/c on his own car, and lets an air conditioning professional do it. That's enough to warn me off.

want to use the low pressure side for charging. Should be the

the charges are so small on cars these days that those cans should not be used anymore. the car is so new that you should have the system serviced only by toyota. they may be costly but one screw up by you can be even more costly. i have my own service equipment and i would not attempt any ac work without it.

want to use the low pressure side for charging. Should be the

the charges are so small on cars these days that those cans should not be used anymore. the car is so new that you should have the system serviced only by toyota. they may be costly but one screw up by you can be even more costly. i have my own service equipment and i would not attempt any ac work without it.

want to use the low pressure side for charging. Should be the

the charges are so small on cars these days that those cans should not be used anymore. the car is so new that you should have the system serviced only by toyota. they may be costly but one screw up by you can be even more costly. i have my own service equipment and i would not attempt any ac work without it.

Did you REALLY have to post your response THREE times? Perhaps some remedial Computing 101?

I've been under the hood of Toyotas for about 7 years, now I work on jets. I follow the same guideline as Ray. Since I no longer have the equipment at my disposal, I pay to have my ac service done with the proper equipment. Sure, I may ballpark some refrigerant into my 76 Marquis with a hose set and a few cans, but you can crank butane into those old systems and be good to go. My newer daily driver? No way.