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felixeis8

Lexus GS AC Issue

AC stopped cooling in my 2017 Lexus GS with a gasoline engine. Fuses are fine. Any ideas?

4 comment(s)

lenadragon18

I had a similar issue with my GS. Thought it was a refrigerant leak or blower motor at first, because the temperature control wasn't working. Turns out, it was a faulty AC pressure switch. Have you checked that?

felixeis8 (Author)

Thanks! I haven't checked the pressure switch specifically. Where is it located, and is there an easy way to test it without specialized equipment?

lenadragon18

Finding the exact location can be tricky without a diagram. It's usually near the compressor or condenser. Testing it properly really needs a multimeter to check for continuity. Based on what you've said, it sounds similar to the valve issue I had. I'd take it to a workshop; they'll diagnose it properly and save you headaches!

felixeis8 (Author)

Thanks! Took it to the shop and you were spot on! It was a defect in individual valves in the AC system. Cost me about 1000€ to repair, but at least it's fixed. Thanks again!

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