The temp light in my dash is not working. I don't beleive it has in the 15 mos. I have owned the car. I have a sending unit? mounted on the intake with no wires connected. Where do the wires for this originate? How do I recognize them? I have just had my engine rebuilt by Brent Hougestol at Advantage Custom Engines in Didsbury Alberta and am very happy with the result. But I cannot drive the car with confidence until I get this silly idiot light working. The car is a 67 326 2 speed. Can anyone tell me how to get this temp light working PLEASE. Jimbo

the wires should be taped along the side of the alternator wires leading to the alternator. I think there is two for the sending switch.

I cannot find the wires in that spot. I am not sure if the wires have been removed in the past but I am stumped as to what to do next. ??????????????? Jimbo

Jimbo,

The temperature sending unit wire should be a dark green that runs back to the steering column connector and then to the dash instrument cluster. I do not have a '68 diagram that displays it, and my '69 has a different bulkhead connector so I can't help there either.

This Illustration shows this wire running along the edge of the valve cover where it meets the intake and back into the loom. (bottom left image floow it back from #9 - indicates the sending unit)

It is a single solid Green wire as Vikki mentioned and will go into the main loom as it goes down towards the firewall at the fuse block... (And you'll need to make sure you have the sending unit for the light, and not the gauge)
Not usually a problem unless it's the other way around with Rally Gauges...

http://1968firebird.groupwhere.org./illustrated/elect/elect2.html (3rd image group down)

Maybe you'll get a better idea from this?

Brett - 67 Drop Top 455!

Mark Vikki and Brett I found the wire in question. Guess where? When I pulled the motor for the rebuild I labeled allwires bolts etc to make the re-install easier. When I bought the car the starter had 2 wires going to the 2 terminals on the starter so I labeled them as such and went at the pull. So when I installed the rebuilt motor I just put everything back where it was. Well the starter only should have 1 wire to it other than the battery cable of course so yes the second wire is actually the heat sender wire. Thankyou to you guys and gal for all the help. I love this website and the people on it. Jimbo

Please forgive the poor wording of that last message.It is 430 am and I just got home from a long trip on the train. Jimbo