70' Blazer 4WD (Wire ID)
 

I have this wire lead that i don't know where it goes. i don't see it on the wiring diagram. It looks pink to me. Maybe for an accessory?

It may not be from this truck. Any help appreciated. thanks.

Re: 70' Blazer 4WD (Wire ID)
 

Hello and welcome to the board.
That wire could be for an accessory, I don't recognize the connector as anything stock.

Re: 70' Blazer 4WD (Wire ID)
 

I just found this. it certainly coud be this wire.

Quote:

Originally Posted by GMCPaul (Post 2807140) Heres a scan of the 1970 V8 TCS RPO-Option wiring, the 71 & 72 wiring diagrams are identical to the 1970 shown below http://www.gmcpauls.com/70-72_TCS_RPO-Option_Wiring.jpg GMCPaul

Re: 70' Blazer 4WD (Wire ID)
 

Yes the transmission controlled spark wiring harness, I forgot about the 70 and 71s. Also the carb idle solenoid has a red wire going to it to hold the idle up if the AC is on.

Re: 70' Blazer 4WD (Wire ID)
 

Wondering if that wire number 141 in the diagram is the brown wire in my harness? otherwise, not sure what it is.

Re: 70' Blazer 4WD (Wire ID)
 

It might be a TH400 transmission kickdown wire. That grommet on the wire would pop into a hole in the firewall.

https://67-72chevytrucks.com/vboard/...d.php?t=811030