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Old 05-15-2014
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A/C & RPM's - 2002 2.3 Ranger

Hey guys,

My 2002 is having AC problems, now that it's warmer I want to get it working right. It did this last year too, but I just limped it on through since it was towards the end of the summer months.

When I turn on AC, either AC or MAX AC I don't get ANY cold air, just warm air. Last year I thought I could fix it with a bottle of new refrigerant, but when I connected it it said it was in the right "zone" and I didn't want to overcharge it. I still have the bottle and gauge, and will probably look to reconnect it again and see if it still is the case... but..

When idling, I can hear the compressor cycle about 1 time ever 10 seconds or so. When it does, it takes my idle rpm from about 800 to 500 and the engine stumbles like it wants to die. It cycles again, goes to 800 for another 10 seconds and does it again. I'm not versed at all with AC systems, have no idea really how to start troubleshooting the system as a unit. Hoping for ideas on where to start.

Compressor Problem?
Low Pressure Switch?
Need to evacuate and recharge refrigerant?

Thanks for any ideas!
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