Shainemw

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?

Drcoffee

Did you flush out the entire system before replacing the compressor? Its not a part you can just swap out and drive on.

Shainemw

I did not do the repair. My mechanic did and according to the RO, that was done.

Drcoffee

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.

thomas1

I would also recommend replacing the dryer.

Bill Dowd

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.

Shainemw

So there is no other electrical related item I can ask the mechanic ( who is an a/c shop as well) to look at?

salimshah

I would suggest have the shop install a Denso compressor. Denso being the OEM supplier.

Salim

Shainemw

**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 ....