1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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17,581 Posts
The compressor may be fine. You mght have seen a puff of refrigerant if the high side pressure got too high. There is a high pressure relief valve on the compressor that will exhaust excess pressure. It usually makes a horrible noise when this happens.
The reasons for excessive pressure are that either the radiator/cooling cooling fan is not working or the freon is overcharged. The radiator/condenser cooling fan isn't as critical when you are going down the road with air blowing through the condenser, but the fan is needed when the vehicle is at a stop. Also a restriction in the plumbing or over-oiling can cause this.
The reasons for excessive pressure are that either the radiator/cooling cooling fan is not working or the freon is overcharged. The radiator/condenser cooling fan isn't as critical when you are going down the road with air blowing through the condenser, but the fan is needed when the vehicle is at a stop. Also a restriction in the plumbing or over-oiling can cause this.
