Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Coolant Temperature Sensor / Switch HVAC: Service and Repair

REPLACEMENT PROCEDURE:

Temperature Switch - Cold Engine Lockout (2):




1. Open radiator cap.
2. Pull single-pole coupler from switch (2) and unscrew switch.
3. For installation proceed vice versa.
4. Check cooling system for leaks.
5. Check automatic climate control for function.