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This is a 1980 Longbed Luv. A friend and I tore this motor apart for a head gasket replacement, I went ahead and had the head checked out , turned out it was warped, and we put everything back together. I have everything reconnected and ready to turn it over besides these 3 wires. Does anyone know where they hook up and what they control?

It's hard to see them in this picture, its the black connector, faded black or grey connector, and the round connector between them

They come from this connector:

Which runs back to the fender here:



Also here is the truck we are working on, it will be my wife's cruiser. Brakes and lines are all brand new, new tires, just needing the motor to run and going to save for a Weber Carb.

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Certified pilots, looking down on people since 1903.

The gray flat connector (yellow/black stripe wire) goes to the temperature sender on the bottom of the intake near the cylinder #1 runner.
The black flat connector (black wire) goes to the oil sender at the base of the oil filter mount.
(If you swap the two the temp gauge will swing wildly with rpms- I did it once.)
The round connector isn't hooked to anything on my truck, so can't help you there (green wire).
There is also a 4th wire in the bundle on my truck, it goes to the distributor, but it looks like in the picture you already have that wire connected.

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'78 Chevy LUV,1.9,4sp,headers,31's,SAS Dana 30,Dana 20,SOA rear w/Aussie Locker, rough body, bought new 12/4/78.
'87 Trooper,2.3,5sp,headers,31's,ball joint flip & spacer,Aussie Locker rear,Superwinch hubs,brush guard w/5.5K winch,more to come.

I believe the black round wire would be A/C compressor if so equipped .

Thanks alot everybody, I will go down and hook everything up this afternoon!

Found the sensors, I will hopefully post a running video tomorrow night. Thanks for the help guys, don't know how I overlooked them.