idle cycles high to low w/ air conditioner on! - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 08-26-2009
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idle cycles high to low w/ air conditioner on!

Hey everyone,...This has been getting on my nerves and I don't remember the truck doing this last summer,....anyone else experience this problem? It's a 99 3.0 4X4, and other than the air seeming like it needs the refrigerant recharged,....when the air is going, the idle cycles up/down, up, down, till I set the heater control to straight up (off) . Then the engine idles normally....any help would be appreciated... Thanks, Joe
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Old 08-27-2009
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Joe, If your A/C is cycling on and off quickly it more than likely is low on freon. This will cause the idle to very trying to keep up with the load.
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Old 09-02-2009
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Hey Rev....Thank you,...that makes sense because my air has been kinda not super cold....I wonder how much for a recharge? Joe
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Old 09-02-2009
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You can pick up a can of 134a with charging hose at Kragen or Autozone for about 15-20 dollars.
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