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A/C Always on

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Old Jun 6, 2007 | 01:03 PM
  #1  
ebraunusa's Avatar
ebraunusa
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A/C Always on

Hi All --

My A/C clutch bearings blew out and I replaced the A/C clutch assembly. The assembly included the pulley and coil. I plugged in the electronic connection when all done.

Since then, the AC blows cold, but it is always on. If I have the switch on the dash set to vent, it is still running. If I have it off, nothing blows, but the condenser (holds the freon) gets all frosted up.

Where do I start checking to see why it is always engaged?

Thanks
 
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Old Jun 6, 2007 | 07:45 PM
  #2  
FTE Herman's Avatar
FTE Herman
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Is there voltage always to the coil? If so, this is the problem and may be what caused the old one to fail early. Do you have the EATC or the standard temperature controls?
 
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Old Jun 10, 2007 | 07:31 PM
  #3  
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ebraunusa
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how to check the coil?

before it failed, the A/C was working fine. I believe it failed when I had the a/c running and then the clutch piece failed.

I have the standard temperature control.

You mentioned to check if their is voltage always going to the coil. What coil? The coil inside the pulley? How would I check? Would I unplug the adapter that goes into the coil block and check that? What would I be looking for? Would the truck need to be running and then change the selector?

Thanks
 
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