GX - 1st Gen (2003-2009) Discussion topics related to the 2003 -2009 GX470 models

AC short cycling at idle

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Old 02-06-21, 11:49 AM
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jaggedaz
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Default AC short cycling at idle

I haven't had my GX for super long so I'm not sure if this is normal, but the AC compressor seems to cycle on for a few seconds every 20 or so seconds when I'm stopped and in drive. Recording:

https://youtu.be/6E4bWpqOYf0

I also captured what you can see through the AC sight glass in case it helps identify an issue with how much refrigerant is in the system:

https://youtu.be/nZ9utA2JP9Y

The AC is cold, maybe not consistently the right temperature, but seems to be working fine. Any idea of what would cause the short cycling?
Old 02-07-21, 06:34 AM
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chiph9
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Every 20 seconds is a bit more frequent than it usually does.

By this time, most 470's will need their refrigerant topped-up. Take it to an auto A/C shop that works on Toyotas and get them to check the levels. All modern A/C systems are picky about the amount of refrigerant needed, so if they don't have a scale to weigh the tank, go somewhere else.

Chip H.
Old 02-07-21, 11:15 AM
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jaggedaz
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Originally Posted by chiph9
Every 20 seconds is a bit more frequent than it usually does.

By this time, most 470's will need their refrigerant topped-up. Take it to an auto A/C shop that works on Toyotas and get them to check the levels. All modern A/C systems are picky about the amount of refrigerant needed, so if they don't have a scale to weigh the tank, go somewhere else.

Chip H.
Makes sense, I'll give it a shot. Thank you for the reply.
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