Question about 1992 Chevrolet G20

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1991 1500 pickup air compressor will turn on. swich & fans work

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  • waughjr May 11, 2010

    still no cold air though huh? low on refridgerant?



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And what your problem

Posted on Jul 17, 2009


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U may be low in Freon gas.
When Freon is low there's low pressure switch that will prevent A/C compressor clutch from engaging to protect it from failure.
So, first check Freon pressure & any leaks form lines & hoses fittings.
Even if the fan is working, that doesn’t indicate proper compressor OP'S.
Look at the compressor front side you'll see the clutch stationary while the AFT pulley moving.

Then put air-condition compressor switch to ON (Engage),
You should see the clutch engage & start rotate,
If NOT, this is very clear indication u r low in Freon.


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