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Sorry, another AC question

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Old 13 Jun 2018, 07:18 am
Fresh Cruiser
Join Date: Sep 2016
Posts: 3
Default Sorry, another AC question

Seems it's rife with AC stuff but I haven't seen this issue yet so I'll explain what I see and what I've done.

It's a 2003 base model manual transmission.

AC hasn't worked since we bought it 2 years ago, but only had 31k miles on it.

Car started to overhead and radiator fan didn't kick on so I replaced it along with the thermostat just in case, cuz they're cheap.

so after replacing the fan I took out AC refill juice can with a gauge and hooked it up. it was in the white low area while the car was running.

then I'd hear a click and the gauge would go high green, the radiator fan would kick on, then they both would shut back off and the gauge would go into low white again.

It kept doing this every 5 seconds or so. click-on-click-off. cold air never blew but the AC line got cold.

Any clues? It sounds odd.

Last edited by sheepish; 13 Jun 2018 at 07:21 am.
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Old 14 Jun 2018, 08:54 am
Obsessed Cruiser
Join Date: Aug 2015
Location: Lake Wales, FL
Posts: 5,011
Default Re: Sorry, another AC question

I don't know diddly about a/c, but have noticed that a LOT of people have had problematic low pressure switches. Maybe you should replace that. They're not too expensive. I THINK around $15.

Aspire to inspire before you expire.
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Old 16 Jun 2018, 08:47 pm
Regular Cruiser
Join Date: Mar 2014
Location: Tampa
Posts: 111
Default Re: Sorry, another AC question

If you suspect its the switch, you can can that connector off the switch and use a jumper wire across the wiring harness end. The compressor should run as if the system is full.

If it is actually low, the fan and compressor will run and you should feel a lack of cold air from the a/c ducts in the car.

Beware, running the compressor with a lack or low freon can damage the compressor, so don't leave it jumped any longer than needed to troubleshoot the system
2003 GT
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