Auto AC Advice

[Airtech]

This vehicle apparently uses a TSB19C compressor which may be controlled by an electric control valve in the compressor. This could give you the elevated suction side pressure. I am not able to access the proper info for this system at this time. A new compressor will have a new valve. The other items may not be needed at this time, thus you would save a lot of money. Sounds as if you need to ck with a good A/C technician, instead of a bunch of second guessers.

[Sethmac]

Something else noticed today. There are two radiator cooling fans and the one on the right was not running when I popped the hood. I took a screw driver and flipped it forward and it took off (albeit a little slower it seemed).

I turned off the car and it didn't kick on immediately 2/3 of the time. This is a sign of a bad motor is it not?

Need to replace the fan assembly or should I look somewhere else first?

[eradicator]

Does it have a cabin filter?

this

[Sethmac]

Cabin filter was recently changed

[Sethmac]

Tested fan by going straight to 12v...one bad fan motor

[JackRyan]

Tested fan by going straight to 12v...one bad fan motor

That was going to be my first guess. Any time you've got less than cold air at idle but really cold when you're moving or at highway speeds those fans are the first thing to check. But the second fan can be tricky as it's often on a thermostat.

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[Sethmac]

Following up on this post...the time has come for me to tear into this one.

Anyone familiar with a Sienna and where I should start once I get the system evacuated?

[Txhunter3000]

Go to a Toyota site on Sienna. Toyota Forums are your best source of info. Do a search on your problem, someone has already had this problem and the fix is most likely out there.

[kurt68]

Change the expansion valve and in-line screen. If the compressor is good. The in-line screen gets a lot of shavings in it.

[Blackgar]

Low side high, sounds like a cooling fan of compressor issue