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RX eats a/c compressors

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Old Mar 13, 2017 | 07:13 PM
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Default RX eats a/c compressors *UPDATED AND SOLVED*

Good Evening,

Lindsay the Lexus is back in the shop after the a/c had decided to stop working again on Saturday. This would be the second compressor that has failed. The only thing that keeps on happening since I had the a/c system replaced is when you activate the a/c it will bog down the engine and may or my not turn on right away. I have had to drive for anywhere between 10-20 minutes before the system would turn on. Once on, it works without a problem for the day.

It it is a NAPA brand replacement, new not rebuilt and the appropriate replacement relay has been installed. Is there something else that would be causing this? I have seen postings about A/C amplifiers for other Toyota/Lexus models, could that be the culprit?

Last edited by Shainemw; May 16, 2017 at 12:16 AM.
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Old Mar 13, 2017 | 07:53 PM
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Did you flush out the entire system before replacing the compressor? Its not a part you can just swap out and drive on.
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Old Mar 13, 2017 | 08:13 PM
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I did not do the repair. My mechanic did and according to the RO, that was done.
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Old Mar 14, 2017 | 05:27 AM
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If it boggs down before moving freely, it may be overcharged or too much oil. I would take it to an AC shop. I think your mechanic missed something.
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Old Mar 14, 2017 | 07:08 AM
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I would also recommend replacing the dryer.
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Old Mar 14, 2017 | 08:30 AM
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Your best bet is taking it to a a/c shop and have them look at it, also during the cold months make sure to fire up the compressor 2 times a week. when you have the heat on just hit the compressor button and let it
run for about 15-20 minutes this will move the Freon and Oil around the system lubricating the whole system. Your refrigerator at home runs for years and goes several times a day if you run your air in the Lexus it will
also last for years.
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Old Mar 14, 2017 | 12:11 PM
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So there is no other electrical related item I can ask the mechanic ( who is an a/c shop as well) to look at?
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Old Mar 14, 2017 | 02:53 PM
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I would suggest have the shop install a Denso compressor. Denso being the OEM supplier.

Salim
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Old May 7, 2017 | 03:44 PM
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**UPDATE**

It is fixed, finally. Works as it should. I can leave the a/c in auto mode and when it is restarted the a/c waits to kick on. When it does, it does so without bogging down the motor and kicking on the a/c blinking light.

They brought in a warranty guy to figure out the problem. They did replace with a Denso brand compressor. Flushed the system (as a precaution), as well as a few other bits and pieces and of course, refilled the coolant. All covered under warranty.

If you are in San Diego and need a shop, the guys at John's Automotive are really good and work hard to make you happy. Plus their warranty of 36 months/36,000 miles is really good. Especially on an older vehicle like this.

Suspension on will be next ....
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