firewall harness, what wires are these?
 

Sorry but no pic's on this one. I am looking for information on the harness that is located about 3 inches above the MAIN wiring harness, Just to the right of where the spedo cable exits the firewall. Looks to have about 5 wires in it. Behind the dash, it goes to a relay and the fuse box. Please help identify these wires. Goes on a 71 4x4 blazer with factory ac.

Re: firewall harness, what wires are these?
 

Hey there I'm in Reno too. I'm going out to look at mine right now.

Re: firewall harness, what wires are these?
 

here you go.

Re: firewall harness, what wires are these?
 

call me at 358-3722

Re: firewall harness, what wires are these?
 

Where does that go from there the relay on the inside next to the fuse block on mine is the horn relay. I have one wire in that location and it goes to the blower motor relay and since yours has factory ac it could be the a/c/ switch relay. Mine has no air.

Re: firewall harness, what wires are these?
 

I believe it is the harness for the TCS (Transmission Controlled Spark) system.
Basically it's an emmissions thing.

My harness was still still on my truck when I got it but the TCS solenoid was gone and the circuit was not functioning.
I removed that harness when I switched to TPI.

Re: firewall harness, what wires are these?
 

A/C relay is located on the diverter box on the inside passenger side of the truck.

Re: firewall harness, what wires are these?
 

Mine went away when I put the painless harness in..

Re: firewall harness, what wires are these?
 

I went and looked at the two rigs in the driveway. My '71 (build date 05/71) with AC did not have this harnass, nor did it have the dingleberry on the transmission. Engine calibration code AQ. US Dept. of N.E.W and CA. certified


http://i14.photobucket.com/albums/a3...r/71withAC.jpg
http://i14.photobucket.com/albums/a3.../71withAC2.jpg
http://i14.photobucket.com/albums/a3.../71withAC3.jpg

My '72 CST(build date 04/72) had it. Engine calibration code LM, federal and CA compliant. In the harnass there was the feed to the coil, and 3 other wires (that I noticed) that went to a plug, (whatever it plugs into is gone, no suprise there) then down to the transmission.
http://i14.photobucket.com/albums/a3...72CSTWAIR6.jpg
http://i14.photobucket.com/albums/a3...72CSTWAIR1.jpg
http://i14.photobucket.com/albums/a3.../72CSTWAIR.jpg
http://i14.photobucket.com/albums/a3...72CSTWAIR2.jpg
http://i14.photobucket.com/albums/a3...72CSTWAIR3.jpg
http://i14.photobucket.com/albums/a3...72CSTWAIR4.jpg
http://i14.photobucket.com/albums/a3...72CSTWAIR5.jpg

Re: firewall harness, what wires are these?
 

On both of my rigs, one ear is broken off of each one.


http://i14.photobucket.com/albums/a3...er/th350-1.jpg
http://i14.photobucket.com/albums/a3...er/th350-2.jpg

HEI/tach pic shown here.
http://i14.photobucket.com/albums/a3...tachhookup.jpg

Re: firewall harness, what wires are these?
 

I have a full upgraded wiring system too, no help just a bump :(

Re: firewall harness, what wires are these?
 

Exactly what is a "dingleberry":confused::confused::confused:
Shane

Re: firewall harness, what wires are these?
 

its a thingie used in upholstery, its a little ball on a string, commonly seen (in the old days in cars driven by mexicans, and indian (not nativie) cab drivers in NYC. Also refered to "something" stuck to hair on a nether region of your backside that has balled up. I will let you draw your own conclusions.