Started to get a clicking sound from my AC system today. Am guessing this is the dreaded servo problem I have read about here previous. Have yet to determine which of the four it is. Is there a particular one which seems to be the main culprit, or is it just pot luck?

Thanks.

 

Don't know about a servo problem. But if the coolant is low, the compressor will run shortly, run out of fluid, and a pressure switch will turn it off...then the fluid collects, and the compressor turns on again...over and over. You can add a can of coolant and it will temporarily fix it.

 

Coolant levels are fine.

 

There's a TSB on this, got mine fixed. No more clicking. It is the mixed air servo. Some of us have done it, replaced this themselves.

 

Did not see my 2004 as listed for this problem. Details? Besides, as my RX is long out of warranty and I have not taken it by the dealer the last few years with the exception of the recalls I doubt I will get any goodwill for this repair.

Was not doing it this morning. Seems to come and go. AC works, so gives me time to debug. Also lends credence that it may be the air mix servo.

Doubt I will do this myself. Looked at the take apart details on the servos and do not have the dexterity I once had to get the tools into the locations needed to get this apart and back together again. So, do not believe I will be able to post instructions if I get this taken care of.

 

Doesn't matter found the info..............

 

And you know this how? You have an ac pressure manifold gauge set?

 

Why yes, I do.

Along with a full combination set of Mac Tools and Snap-on tools -- standard and metric. Last used when converting an R12 system over to R134A. Had my own tools growing up and then inherited all of my dad's stuff. Was even trained on how to use them and not be a danger to myself. Many a weekend of rebuilding carburetors on the kitchen table, working on the cars in the backyard or at the track. Why it takes me less than 45 minutes to put brakes on the front or rear of my RX from start to cleanup. Can almost do it in my sleep. Unfortunately, I am an analog guy in a digital world now.

As I have gotten along in years myself I have sold off quite a bit I was not using such as the specialized tools and many of the air tools. However, I still have a decent kit of tools to maintain the tractor and my classics.

FWIW, the AC cools fine. Even with the FL heat and humidity we have at the moment. Just that bloody clicking noise from time-to-time.

 

Does this have anything to do with what's in this thread?

https://www.clublexus.com/forums/rx-...vers-dash.html

 

Probably yes, and sorry for missing that previous thread. Missed it somehow. Could have added to that instead of starting a new thread.