2009 TCH AC freon leak - GreenHybrid - Hybrid Cars


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Old 07-07-2018, 09:41 PM
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Default 2009 TCH AC freon leak

My 2009 TCH with 206000 miles needs a freon topup once a month as it is leaking. Has anyone had the leak and what are the most common places that these cars leak (hoses/evaporator/condensor?)
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Old 07-13-2018, 07:59 AM
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Default Re: 2009 TCH AC freon leak

Just buy small bottle of freon with fluorescent die and check with uv light. Could be radiator, could be hose, you'll waste time and money guessing.

BTW any other issues past or present? I just got 201k on my 2007 and knock on the wood had Zero issues so far. I still run on original 12v battery, AC never charged, cold as new.
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Old 07-14-2018, 12:27 AM
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Default Re: 2009 TCH AC freon leak

Pete4, thank you for the reply, however as the TCH has an electronic compressor (electric motor driven and not ICE belt-driven), it cannot use normal dyes.. I have ordered some hybrid-specific dye and will test it when it comes.

The only other problem I've had so far is having to change the 12V battery - extremely reliable car.
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Old 07-14-2018, 09:14 PM
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Default Re: 2009 TCH AC freon leak

Thanks for reminding me, I forgot about electric motor winding being immersed in freon, so the die has to be dielectric and non reactive, otherwise will cause short. Please post the final outcome, may help others in the future. BTW where did you get special die, In case others need it. I just replaced clutch/pulley assembly and charged my wife's Santa FE AC, good thing mine is working fine.
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