what did the gage exactly read? what was the high side pressure? did you liquid or gas charge the system? sound like you where liquid charging and that will cause the low side pressure to jump very high
the end of it all is if the system wasn't turning on at all the system was empty or over filled. either way you can't fill the system correctly unless you have a vacuum pump. you can't just dump R-134A into the system, you need to get the air out as it reduces the efficiency of the R-134A
also if you heard a hissing the leak might be so bad that this is what you heard
what you need to do is take it to a shop if you don't have the right tools to work on the A/C system
you need to first determine the high and low side pressures to see if it needs to be refilled or if it is leaking and fix that first, vacuum down the system and make sure it holds the vacuum and then recharge to correct levels for R-134A and oil ...
edit: almost forgot, you do realize that the pressures the system sees changes depending on the ambient temp right? if you are in one of these areas seeing 100 degrees the high low side pressure might be right ...
Last edited by BrApple-SeVT; 08/02/06 06:54 PM.
