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95 Concours-Wht Diamond
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46 Posts
Discussion Starter · #1 ·
Hi

95 Concours, I have been getting an intermittent A047 low freon code.
I reset it and everything is fine for a long while.

System blows cold and works well.

The code comes often now.

Funny thing is if I just let the car idle with AC on it does not code?

How can I prove or disprove the sensor and or wires to it?

Does the system need to be evacuated and recharged to change the sensor?

Thanks
 

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Super Moderator
2010 DTS
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88,551 Posts
Get a set of gauges and check the pressures or take it to an A/C shop. Probably just needs a top off.
 

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Registered
95 Concours-Wht Diamond
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46 Posts
Discussion Starter · #4 ·
Thanks,
Gauge showed a 25lbs when compressor on and 5lbs off.
Added 12oz of 134a and fixed it. :)
Guess it was low for a long time.
 
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