I have a buddy (really it's not me) who has an '89 that is having an issue with his A/C compressor. While moving the compressor works properly keeping the cabin cool and cycling as needed. When he stops at a light it only takes a few seconds of sitting that the compressor "locks" up and the serpentine belt slips making an obvious squeal. Coolant hasn't been added or removed ever and it only started happening this summer. He did say that his outer auxiliary fan seems to kick on and off when the A/C cycles. I thought as long as the A/C switch was "on" in the cabin the front fan ran continuously, but I am just assuming that. Can anyone help him determine what is going on?
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Re: 89 A/C Compressor lock up
A system that has never had any service could be needing some oil in the system. The freon moving through the system also brings oil to the compressor. -
Re: 89 A/C Compressor lock up
Poor air flow across the condenser may be the culprit, When the A/C is on all fans should be running it needs all the air it can get. High pressure will lock the compressor, this can happen when the fans are not running at idle.Comment
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