'99 Blazer A/C Compressor knocking, cold air while driving, but warm air at idle.
I have a 1999 S10 Blazer 4x4 and this summer the compressor has
developed a knock that is louder at times then other times. It still
blows cold while driving, but only blows warm at idle. The compressor
clutch never shuts off so I know it isn't the low-pressure switch or
low coolant. What could be the possible causes and what should I look
at first? I'm assuming something might be partially plugged since the
compressor still works? Or is this what a compressor does before it
implodes?
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