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Refrigerant was only topped off due to original issue. I found a very similar thread on another site describing almost the exact same thing (though not intermittent) with drop in RPM when A/C is turned on (but no cold A/C tube) where problem was resolved with relay. I blew out A/C fan blower relay and A/C MG relay along with seats with contact cleaner and ...


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AC compressors are either on or off. The energy draw is exactly the same, regardless of paint color. Now, a black interior versus a light-colored interior will make a small difference, as the interior of the car will be warmer, and thus cause the AC to run longer. But the difference is so small that you won't notice it.


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First thing i'd do, would be to stop trying to engage the AC system/defroster and take the car to a good shop and have the refrigerant charge weight (not pressure) assessed as soon as possible. If a correct or not terribly low charge is found, then it's likely an electrical problem with faulty sensors, a faulty compressor clutch or faulty wiring (for ...


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The first thing I would check is to see if the air conditioning compressor clutch is engaging when the system is on. The fan probably won't come on if the AC compressor isn't engaging. Does the fan engage when the car sits at an idle in the driveway? After it comes fully up to temperature, the fan should start. The threshold coolant temperature is ...


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This is a bit hard to pin down with just the given info since it could be caused by so many things. You need to find a better shop I think, someone who will hook up a good scanner and watch live data on test drives. This would probably help narrow it down. My first suspect would be airflow. Have you changed your filter lately? Another I might would keep a ...


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