Do I have a "low coolant switch?

[Rickard0]

1977 Buick Skyhawk S 231 V6. I was troubleshooting the light harness, and noticed a Black/Yellow wire that has a single connector just hanging. it looks like below image. According to the Wire Diagram found on this site it belongs to the Low Coolant Switch. I can't find a reference image to show where the location is or if I even have one.

[cosvega76]

If you still have a Low Coolant sensor - a replacement radiator may not have the bung - it will be on the side of the radiator tank, about a third- to half-way down.


Chuck

[Rickard0]

Thanks, I do not see one, so it looks to be just an unused cabled on a standard wire harness.

[cjbiagi]

Most replacement tanks did have the bung since it was standard equipment.