RX - 2nd Gen (2004-2009) Discussion topics related to the 2004 -2009 RX330, RX350 and RX400H models

Ac not cooling

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Old 01-22-23, 11:20 AM
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Blake11
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Default Ac not cooling

I have a 2007 and have taken it to several mechanics and no one can determine the Freon leak. It will hold for a few weeks and then stop blowing cold. Any ideas?
Old 01-22-23, 02:08 PM
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Dewpage
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Originally Posted by Blake11
I have a 2007 and have taken it to several mechanics and no one can determine the Freon leak. It will hold for a few weeks and then stop blowing cold. Any ideas?
I chased the exact problem for two seasons on our 09 RX .. The evaporator coil had a very slow leak…. Did the correction myself… not an easy job but VERY rewarding! Only symptom was an odor from dash vents on start up..
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Old 01-25-23, 06:50 PM
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Felix
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Originally Posted by Blake11
I have a 2007 and have taken it to several mechanics and no one can determine the Freon leak. It will hold for a few weeks and then stop blowing cold. Any ideas?
I'd take it to a shop that has certified a/c tech. They'd put some dye in the system & put a vacccum on it to start with. I'd change out the orifice tube....
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Old 01-29-23, 06:52 AM
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Margate330
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I have one of the Refrigerant Leak Detectors from Harnor Freight.

I've used these types of detectors for many years, works excellent and this one costs $70.
>> sniffs for leaks and beeps get louder and faster as you locate the source, kinda like a treasure finder. lol



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Old 01-29-23, 07:47 AM
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Blake11
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Thanks . I’ve taken to several mechanics that use these but no can find the leak.
Old 01-29-23, 08:09 AM
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uksparky
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A/c stop leak, make sure you get the right stuff... stop leak for condensers


Last edited by uksparky; 01-29-23 at 02:08 PM.
Old 01-29-23, 09:29 AM
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Margate330
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Originally Posted by Blake11
Thanks . I’ve taken to several mechanics that use these but no can find the leak.
You can ask if you like but I believe Harbor Freight will accept a return with a receipt- Refrigerant Leak Detector.
May charge a "restocking fee of 10%-20%" if they wanna get hard on ya but you can at least try it out and return if it doesn't work(and keep it if it does.

PS- if it takes less than a month for the freon to leak out, you have a good leak.

PS- I've never had a leak I couldn't detect with one of these- I could do it in 5 mins if you were here. lol

Originally Posted by uksparky
Hi uksparky!
I've never used a sealer but I hear people do use it.


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