5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

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Old 12-16-2005, 02:30 AM
  #1  
91stang
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Default heater

it's getting cold where i am and just when it starts to get cold, my heater stops working. i've narrowed it down to an electrical problem casue the heater still works it just comes on really slowly and the fans never turn on. does anyone have a layout of the fuse box for mustangs? (might wanna make that a sticky) i misplaced my manuel. either ity's a blown fuse, the fans just stopped working and need new ones, or a wire came loose.

i'm still up for more suggestions to what the problem is
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Old 12-16-2005, 02:02 PM
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rmodel65
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Default RE: heater

the blower switches are a common problem these cars
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Old 12-16-2005, 08:26 PM
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89stanglx
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Default RE: heater

you can still check the fuses to see if one is blown, do you have a 12V test light you can buy them for less than $5.00
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Old 12-18-2005, 12:08 AM
  #4  
91stang
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Default RE: heater

ORIGINAL: rmodel65

the blower switches are a common problem these cars
what part of the switch? where are they located?
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Old 12-18-2005, 12:08 AM
  #5  
91stang
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Default RE: heater

ORIGINAL: 89stanglx

you can still check the fuses to see if one is blown, do you have a 12V test light you can buy them for less than $5.00
yea i do... do you have a layout of the fuse box?
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Old 12-18-2005, 01:23 AM
  #6  
90GTRagtop
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Default RE: heater

Here's a wiring diagram


As you can see, fuses 9 and 6 supply power for the heater and A/C.
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