Impala V8-305 5.0L VIN H 4-bbl (1982)
Thermal Vacuum Valve: Service and Repair
Coolant Temperature TVS
1. Drain coolant until coolant level is below engine coolant outlet housing.
2. Disconnect hoses from TVS ports.
3. Remove TVS.
4. Reverse procedure to install. Torque TVS to 120 in lb.