GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

GS300 ac issue

Old 04-15-19, 01:44 PM
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Angry GS300 ac issue

Hey, new to cars be gentle. I tried recharging my ac on my 2002 Lexus gs300, I turned the AC as low as it can go and set the blower as high as it can go. I checked the compressor was spinning so I put on the bottle and after about 2 seconds of charging the bottle told me it was at the correct charge but my ac is still blowing hot air. Am I stupid and doing something wrong?
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Old 04-15-19, 04:47 PM
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Are you shaking the bottle as you put it in? Did you set the dial on the bottle to the current ambient temp?

If so, then the problem isn't in the charge of the system. The compressor could be bad or you could have a blockage anywhere in the plumbing for the AC system.
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2jzMal (04-16-19)
Old 04-15-19, 11:01 PM
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You may need to just have it recharged professionally. Without vacuuming out the air, pressure would be incorrect and very high if mixed with air.
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2jzMal (04-16-19)
Old 04-16-19, 04:33 PM
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Agree. With this aging generation, it's best to have it professionally tested / charged. So many things can be bad / wrong keeping the store bought route from working in the slightest. Another reason a trusted mechanic is an absolute must these days...
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2jzMal (04-16-19)
Old 04-16-19, 06:21 PM
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Thank you all so much for the help, I'll have it looked at professionally.
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Old 04-16-19, 11:07 PM
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Did you pull a vacuum before you recharged it? I would also recommend you get it professionally recharged because they will put in the correct amount of oil and refrigerant in the a/c system. Those DIY a/c cans 99% of the time will never turn out to be the correct amount of refrigerant your particular vehicle requires.
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