Fuse Panel Diagram
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Freshman User
Joined: Apr 2003
Posts: 43
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From: Pinecrest, Fla
Fuse Panel Diagram
Looking for the diagram to the fuse panel, both underdash and engine compartment. Heater quit working and before I tear apart the dash I want to check the fuses. Lost owners manuel. I also want to know if any of the "relays" in the fuse boxes control the heater. Seems possibly the blend door is not operating. Thanks in advance.
Hotshot
Joined: Jan 2004
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From: St Louis
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Freshman User
Joined: Apr 2003
Posts: 43
Likes: 0
From: Pinecrest, Fla
Blower works fine on all speeds. The panel/floor/defrost switch works great. It's just when I turn the temp from cold to hot, nothing happens. I have the dash pretty much torn apart but I cant seem to see the misteryous "blend door". A/C works great as well...
Posting Guru
Joined: Oct 2005
Posts: 2,209
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From: Louisville, Kentucky
Swap the temperature **** with the fan **** and see if that gets you some heat. The ***** tend to split and won't hold the switch shaft tightly. The temperature control is a bit stiff to turn, so when the **** splits, the temperature control can't be adjusted. Good luck! 
Former Vendor
Joined: Jan 2006
Posts: 3,849
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From: Seattle
The blend door is inside off the heater plenum ( big black box). You may have a bad blend door or a bad blend door motor. If you will tell me the year, make, and model of your truck I can tell you where the blend door motor is located so you can check the function of it and the blend door. Dan.
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Hotshot
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See the FAQs posted at the top of the HVAC forum.... which is the most appropriate place for conversations regarding HVAC issues
Steve
Steve
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