Terbronco7 Posted July 18, 2018 Share Posted July 18, 2018 Ok guys one last electrical question and I will have this all sorted out, I have 2 wires on left side of firewall looking from front of engine one is red the other is yellow, both have fuse links one the red one has a fuse the yellow one doesn't what do these go to? I have not put a fuse in the yellow one as I do not know what it goes to and if it were removed prior to my purchase for a reason. I do know I can't get my AC to power on although everything seems to be in good order, holding pressure, compressor not locked up and all wires seem to be in place also has been converted to R134 could the Yellow wire be to the AC or am I way off here? Thanks Quote Link to comment Share on other sites More sharing options...
1970mcss Posted July 19, 2018 Share Posted July 19, 2018 The instrument panel wiring diagram shows a 18ga yellow wire to the heater control. I don't see any yellow wire in the engine compartment except for the 20ga yellow from the starter solenoid to the coil. It sounds like someone might have added an extra wire for some reason. I have been working through the same thing with my car, trying to figure out what others did to these cars can be a mystery. I'm still learning how to read these diagrams so maybe someone else will respond. Quote Link to comment Share on other sites More sharing options...
Terbronco7 Posted July 20, 2018 Author Share Posted July 20, 2018 The instrument panel wiring diagram shows a 18ga yellow wire to the heater control. I don't see any yellow wire in the engine compartment except for the 20ga yellow from the starter solenoid to the coil. It sounds like someone might have added an extra wire for some reason. I have been working through the same thing with my car, trying to figure out what others did to these cars can be a mystery. I'm still learning how to read these diagrams so maybe someone else will respond. Ok thank you, its actually orange not yellow, but its definitely a fused link, guess ill put one in see what happens....lol Quote Link to comment Share on other sites More sharing options...
1970mcss Posted July 20, 2018 Share Posted July 20, 2018 The orange with the fuse is for the heater blower motor but that should be up on the right side of the firewall Quote Link to comment Share on other sites More sharing options...
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