Common air cond failure?
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Common air cond failure?
2012 6.2 XLT 50,000 miles with manual single zone controls.
I haven't had time to work on it yet, but it seems that my AC compressor is not engaging. The dash controls light up normal, fan comes on, etc.
I am just looking to see if there are any common failure points.
I know it COULD be low on charge, clutch could be bad, etc.
I am just checking if there is a common failure with these trucks AC system.
Thanks
I haven't had time to work on it yet, but it seems that my AC compressor is not engaging. The dash controls light up normal, fan comes on, etc.
I am just looking to see if there are any common failure points.
I know it COULD be low on charge, clutch could be bad, etc.
I am just checking if there is a common failure with these trucks AC system.
Thanks
Hotshot
Joined: Aug 2001
Posts: 16,196
Likes: 398
From: Odessa, Delaware
Usually when low on refrigerant, the compressor won't engage so it does not do any damage. I would hook up gauges and see the amount of refrigerant currently in the system as a starting point.
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thats why the compressor runs when the defrost/defog is on
Lead Driver
Joined: Mar 2010
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From: Woodbridge, Ontario, CA
WRONG. Think about what A/C stands for. Air CONDITIONING, which doesn't necessarily mean cooling. When your mode selector is placed in the FLOOR/DEFROST position, it means the desired outcome is to defrost/defog the windshield (most noticeable during rainy weather). The purpose of the A/C compressor cycling in this setting is to remove moisture from the air, so as to achieve the desired purpose.
Which, as a Ford dealer licensed tech, I've seen my share coming through our shop. An easy way to confirm a failed evaporator would be to add A/C dye to the refrigerant, and watch for dye traces exiting the drain tube on the firewall while the A/C is operating.
Which, as a Ford dealer licensed tech, I've seen my share coming through our shop. An easy way to confirm a failed evaporator would be to add A/C dye to the refrigerant, and watch for dye traces exiting the drain tube on the firewall while the A/C is operating.
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WRONG. Think about what A/C stands for. Air CONDITIONING, which doesn't necessarily mean cooling. When your mode selector is placed in the FLOOR/DEFROST position, it means the desired outcome is to defrost/defog the windshield (most noticeable during rainy weather). The purpose of the A/C compressor cycling in this setting is to remove moisture from the air, so as to achieve the desired purpose.
I understand that the AC system activates to reduce humidity to help keep the windows clear. Why would you tell him he's wrong? He isn't.
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