darkwingduck Posted August 29, 2005 Share Posted August 29, 2005 This may be a dumb question but I don't know so I have to ask, and I did a search and didn't find anything. Here it goes, I have a 93 ES300 does the high side refill when you refill the low side with Freon or do you have refill it separately? Quote Link to comment Share on other sites More sharing options...
Eric5412 Posted August 31, 2005 Share Posted August 31, 2005 The a/c system is a closed loop. The compressor sucks freon from the low side ,compresses it into the high side and then the freon flows through the expansion valve back into the low side. Also you ALWAYS want to fill through the low side(as a gas),because if you fill through the high side with the engine running the container you are filling from may/will explode. Quote Link to comment Share on other sites More sharing options...
Toysrme Posted September 4, 2005 Share Posted September 4, 2005 Same as everything else I've ever heard of, or worked on. Low side fill only. Quote Link to comment Share on other sites More sharing options...
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