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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-

Quick questions, hvac and in dash wiring.

  • Thread starter Thread starter a1machinista1
  • Start date Start date Sep 30, 2023
A

a1machinista1

Active Member
Sep 2, 2023
112
19
28
Oregon
Sep 30, 2023
#1
  • Sep 30, 2023
  • #1
I decided to tackle my heat in defrost only problem today. The nipples on the back of my selector are broken off. I'm assuming I can't get this part new so I'm going to plug the black vacuum line until I can find a replacement. Do I need to plug on the red wire connector on the back? I have no AC.
Also I noticed a group of wires directly behind the fan switch and some are set off with no protection. I'm assuming they are radio since I don't have one hooked up?
I see a dark green, yellow, pink, large red, white. I just bought a radio so I'll look for a way to verify wires and maybe use for new radio?
 
A

a1machinista1

Active Member
Sep 2, 2023
112
19
28
Oregon
Sep 30, 2023
#2
  • Sep 30, 2023
  • #2
I isolated the cut wires and from what I can see online diagrams it looks like there was a factory amp in this thing? I'll button cap all of these and put them back for now
 
A

a1machinista1

Active Member
Sep 2, 2023
112
19
28
Oregon
Sep 30, 2023
#3
  • Sep 30, 2023
  • #3
All wires are cold regardless of on/off ignition
 

Bullitt347

I have been doing it wrong this whole time
15 Year Member
Mar 23, 2007
3,960
2,920
194
Middle of Maine
Sep 30, 2023
#4
  • Sep 30, 2023
  • #4
You need a EVTM for your year of car.
Like this:

Printed Electrical / Troubleshooting Service Manual (EVTM) for 1989 Mustang - #M-LSM-89AE - National Parts Depot

Buy part #M-LSM-89AE Printed Electrical / Troubleshooting Service Manual (EVTM) for 1989 Mustang for your classic 1989 Mustang from National Parts Depot. Free shipping on orders over $300, fast delivery & everyday low pricing! Order now!
www.npdlink.com
 
Reactions: limp and General karthief

limp

wrap a little cheese around it and its a done
5 Year Member
Oct 4, 2020
5,466
2,899
173
Florida
Oct 1, 2023
#5
  • Oct 1, 2023
  • #5
Bullitt347 said:
You need a EVTM for your year of car.
Like this:

Printed Electrical / Troubleshooting Service Manual (EVTM) for 1989 Mustang - #M-LSM-89AE - National Parts Depot

Buy part #M-LSM-89AE Printed Electrical / Troubleshooting Service Manual (EVTM) for 1989 Mustang for your classic 1989 Mustang from National Parts Depot. Free shipping on orders over $300, fast delivery & everyday low pricing! Order now!
www.npdlink.com
Click to expand...
I have one of these for my 83 car and it seems I use it more than any other FSM or " do it yourself" manual I have...
I also recommend one of these..
 
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