A/C freezing at idle warm at speed!!

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Oct 10, 2014 | 03:49 PM

Spikepaga

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From: Houston, Texas

A/C freezing at idle warm at speed!!

It's all backwards!

I have read that a clogged orifice tube will do that, or a heater valve stuck open.

Anyone has had this happen on their X type ?

Oct 10, 2014 | 03:53 PM

Norri

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From: PHX some of the time

Mark, it could be the valve in the compressor see the TSB:

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JTB00183NAS1 AC Valve.pdf (134.5 KB, 113 views)

Oct 10, 2014 | 04:00 PM

Spikepaga

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From: Houston, Texas

Thanks for the quick reply!!

I thought that the spring in compressor issue showed itself by poor cooling at idle?

Oct 10, 2014 | 04:13 PM

Norri

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From: PHX some of the time

Maybe too quick then!

You probably want to check the pressures at idle and ~2000 rpm and see what is happening.

Oct 10, 2014 | 04:59 PM

Spikepaga

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From: Houston, Texas

I will get my gauges out tomorrow, but simple test;

If I park the car and increase the RPM the A/c gets colder as it should.

It's only while driving and accelerating that it's getting warmer ..