1970 C20 wiring diagram???

[JollyRoger1369]

I had my fan switch connector do a meltdown on me so as I'm tearing apart everything I realize the entire wiring under the dash is a complete mess.. 40 years of added stereos, gauges, etc... I got wires going nowhere and wires spliced with wires. Does anyone have a link to wiring diagram??

[gcburdic]

Hey jollyroger....over in our electrical forum, these can be found....http://67-72chevytrucks.com/vboard/s...d.php?t=185856

Hope this helps and welcome to the boards

[SS Tim]

Funny I just posted a link to this thread about a hour ago.

http://67-72chevytrucks.com/vboard/s...d.php?t=185856

Anyway the schematics are kind of generic but will be of help. Best bet would be to pick up a factory Chassis Service Manual and a Chassis Overhaul Manual as well. They are on both paper and disc as reprints which make fine working copies. The factory diagrams will give you more on things like A/C and emission controls. Aftermaket manuals are really too generic as well.

[JollyRoger1369]

Originally Posted by gcburdic

Hey jollyroger....over in our electrical forum, these can be found....http://67-72chevytrucks.com/vboard/s...d.php?t=185856

Hope this helps and welcome to the boards

I found this same link. Then searched the net for more images. Unfortunatley the one wire I'm having issues with I have no clue where it ends.. it's the wire 14brn off the heater control switch. On all the diagrams I can find it just goes to the enge of the paper!!! I did find one that ran this wire to fuse box panel and it looked like it was in the same spot as the cig lighter?? To make matters worse mine was wired into the gauge lights on the "custom" dash.. previous owners doing.

[VetteVet]

First two at the top.

http://www.2heeldrive.com/Chevrolet/Wiring_Diagrams/

[JollyRoger1369]

Originally Posted by VetteVet

First two at the top.

http://www.2heeldrive.com/Chevrolet/Wiring_Diagrams/

Now that makes sense now. Thanks!!