Question about 1997 Chevrolet Suburban

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High ac pressure and not much cooling

My 1997 suburban's ac isn't cooling well. I can hear the compresser knocking while it's running. I was going to charge it and the pressure was really high. Any ideas?

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  • m_mccrary200 Jul 03, 2009

    The compressor still runs.....is it possible to put oil in it? The air still works, it's just cool ...not cold. I was going to charge it and hooked a gauge(on the recharge kit) on the low pressure side. It showed a fairly high pressure...which according to the recharge kit means I shouldn't put freon in it. I'm stumped.

  • Salvador Quintanilla May 11, 2010

    your compressor is bad.if it is knocking it is low on oil.after replacing make sure you remove the orifice tube and flush the system or you will ruin the the new one.if the compressor is knocking there will be metal debris in the orifice tube.which will be part blocked.

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  • Chevrolet Master
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New compressor,dryer,and orfice tube. clean system out really good evacuate and charge

Posted on Jul 03, 2009

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