Cold Start Thermal Valve
Remove the thermal valve thermostat housing. Check valve calibration with 20 in. Hg applied to the diaphragms. Refer to COLD START THERMAL VALVE CALIBRATION .
COLD START THERMAL VALVE CALIBRATION
| Temperature: °F (°C) | 1st Stage | 2nd Stage |
|---|---|---|
| Below 45 (7) | OPEN | OPEN |
| 45-68 (7-20) | OPEN | CLOSED |
| Over 68 (20) | CLOSED | CLOSED |