A/C Pressure Switch—diagnostic advice? (2 Viewers)

[Futbol1sLife]

Hello all,
I’d really appreciate AC help when possible, please. I’m in rural Maine and no shops are confident to tackle this.

*So—can I change the Pressure Switch/Sensor without releasing freon?

Bell Lexus says there’s no Check Valve in the compressor. Bummer. Is there a shader valve instead?

Data:
Compressor runs.
Low side pressure over 100.
Clutch does Not engage.
Fan blows strong.
Changed the Relay.
Changed under hood Fuse.
Code “00” (via Recirculate + Auto).
Will do paper clip jump on Switch in a few.

*GX460 2016 Luxury. AC went warm on driver’s side before it quit completely. If I turn A/C on it tries for 3 seconds then turns itself off.

Welcome all tips, advice and sarcastic remarks! Learning amazing stuff from this forum. I do my oil changes and brake pads, but am a novice mechanic. Thank y’all in advance.

 

[r2m]

When you say, "no shops

Hello all,
I’d really appreciate AC help when possible, please. I’m in rural Maine and no shops are confident to tackle this.

*So—can I change the Pressure Switch/Sensor without releasing freon?

Bell Lexus says there’s no Check Valve in the compressor. Bummer. Is there a shader valve instead?

Data:
Compressor runs.
Low side pressure over 100.
Clutch does Not engage.
Fan blows strong.
Changed the Relay.
Changed under hood Fuse.
Code “00” (via Recirculate + Auto).
Will do paper clip jump on Switch in a few.

*GX460 2016 Luxury. AC went warm on driver’s side before it quit completely. If I turn A/C on it tries for 3 seconds then turns itself off.

Welcome all tips, advice and sarcastic remarks! Learning amazing stuff from this forum. I do my oil changes and brake pads, but am a novice mechanic. Thank y’all in advance.

When you say, "...no shops are confident to tackle this." do you mean independent shops or Lexus dealers?

 

[Rednexus]

Auto AC is pretty universal so just about any competent shop should be able to work on it.

If the switch actually is bad, jumping it with a paper clip is actually not a good idea. I had a Subaru Forester where I did that. It worked for around 8 years until the system developed a leak. The compressor kept running and let go, sending junk through my entire system. I had to replace the hoses, condenser, and flush out the evaporator core. If you can't replace the sensor only, a new compressor is less than $500, and it woudl be much easier to just replace that instead of the compressor and other AC components that are buried under the dash and around the engine.