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1999 Eldorado ETC
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Discussion Starter #1
My husband is not sure which side is the side to fill/recharge the AC on my Eldorado... it is a 99. Can someone tell me which is which? He said he thought that they look about the same. Thanks!
 

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White Diamond '03 DHS (with DTS floor shift)
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86,630 Posts
You fill it from the low side. If he is using a can with one hose, it will only fit on the low side to prevent hooking it up to the high side and holding a grenade in his hand. High side is a larger fitting. If he is using a professional set of gauges, he connects both the high and low side hoses to get a high and low side pressure reading, but NEVER open the high side (red) valve for the same reason.
 

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1999 Eldorado ETC
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61 Posts
Discussion Starter #3
Thanks! Do you have a diagram of this, or know where I can get one to be 100% sure?
 

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White Diamond '03 DHS (with DTS floor shift)
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