Question about 1997 Chevrolet Blazer

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The A/C on my wifes 97 Blazer is not working. I

The A/C on my wife's 97 Blazer is not working. I have replaced both relays and checked the fuse and still nothing. Anybody else have any ideas?

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  • rigmover06 Jul 29, 2010

    It was fully charged prior to this, it's not getting any power to the clutch. Hence replacing the relays. Still no joy.

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Do u have power to the AC compressor clutch cycling switch, this switch is in the low side,either in the larger of the two AC lines or in theround canister called the "Accumulator" under the hood, still think u have lost your charge,this year is prone to AC compressor front shaft seal leaks. below is a picture of the clutch cycling switch.

The A/C on my wifes 97 Blazer is not working. I - 413c512.jpg

Posted on Jul 29, 2010

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How a shop would address this is they would put a new relay in then activate the system using a bidirectional data scanner. If the AC Relay does not get power then the computer is bad. I have seen this same truck 4 times have a bad computer.

Posted on Jul 29, 2010

  • Susan Price Jul 29, 2010

    Also if the clutch does engage using the scanner then the AC control unit or switches is bad.

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Also consider if there is not sufficient pressure in the line due to a small leak, the compressor will not turn on to avoid damage to the ac motor or clutch.

Posted on Mar 05, 2015

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The compressor or fan wiring might be shorted

Posted on Aug 10, 2010

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