Coolant sensor/switch functions

[Hot Air Beast]

If the coolant sensor 25036708 sends temperature information to the ECM what does the coolant switch 25036042 do?

On my 84 GN

Phil

 

[turbonut85]

Runs the dash light.

 

[novaderrik]

yup.. it tells you when you've already gotten the engine hot enough to warp and crack the heads and blow the head baskets..