1970 Temperature Switch

The temperature switch serves a dual function in 1970 TCS system. Switch incorporates a terminal for TCS cold override circuit, as well as a terminal for engine overheat warning light. Switch is calibrated to operate between 65°F and 275°F. Whenever engine temperature is below 63°F, vacuum advance solenoid is de-energized allowing full vacuum to distributor vacuum advance. When engine temperature reaches 275°F or above engine overheating indicator light is energized. Vehicles equipped with hot override feature utilize a separate single terminal temperature switch. When engine temperature exceeds 232°F, switch de-energizes vacuum advance solenoid.