1999 F150 Heater Core

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  #1  
Old 10-08-09, 09:30 AM
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1999 F150 Heater Core

I need some instructions for changing the heater core in my 1999 F150.The windows fog up, pouring sealant in hasn't helped and the weather is now where I would like some heat. I can't seem to find a wet spot inside the truck cab though. Could it be the blend door or a hose and not the core? All suggestions welcome. Thanks in advance.
 
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Old 10-08-09, 10:31 AM
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the coolant leaks out through the a/c condensation drain.
if he wind shield fogs up & smells sorta stale,most likely a heater core.
NO EASY task.
dash has to come almost all the way out of the truck,to acess the plenum assy.
 
  #3  
Old 10-09-09, 11:00 AM
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Question More help needed with 1999 F150 heater core

Well I got to the heater core now I can't figure out how to disconnect the hoses from the air conditioner. I have tried searching this site as well as others and had printed off instructions for 97 F150. My problem last night was a single screw on the driver's side. Help, please.
 

Last edited by JustforMe; 10-09-09 at 11:08 AM. Reason: want it as a new thread
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Old 10-09-09, 11:40 AM
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i just replied to the other post
 
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Old 10-10-09, 07:43 PM
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STOP,,STOP,, If you are trying to disconnect the A/C hoses,,, Take it to a pro with the special disconnect tools as you may be blinded by rapidly excaping refrigerent!!!! Roger
 
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