91 Lumina Z34 Air Conditioning help

salmanman · 08-09-2005, 10:40 AM

Need help locating the low pressure switch. I found one next to the accumulator but it has three wires. Is this the correct one. If so which ones do I jumper to start the compressor so it will take a charge??

Salmanman

Jim Adams · 08-09-2005, 12:04 PM

Yes some have 3 wires in them you want to jump the green and black wires together to make the compressor cick on

salmanman · 08-09-2005, 02:20 PM

What happens if the compressor doesn't come on? it was working a week ago... Is there a relay or fuse to check?

Jim Adams · 08-09-2005, 03:48 PM

yes there is a A.C. fuse should be in your fuse panel,,fastest way to check and make sure compressor is good is jump a hot right into the plug on the compressor.

salmanman · 08-09-2005, 04:29 PM

Thanks!! for the help..

Salmanman

nymorey · 08-11-2005, 10:04 PM

You should put the selector on Defrost or max and jumper the LP switch. The compressor should click on. If not it could be the relay, (I just changed mine out). You can pull the relay and put in a jumper to simulate a closed contact. If the compressor doesn't come on, it's probably bad.

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