buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Thermostat, Engine Cooling|Specifications|Page 2703 > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 2699
Page 1
background image

Thermostat: Specifications

Thermostat Diagnosis

(Overheating) 

Use a temperature stick to determine a thermostats operating temperature by rubbing 87°C (188°F) and 97°C (206°F) sticks on coolant outlet.
The marks made by the sticks should melt when coolant temperatures reach 87°C (188°F) and 97°C (206°F), respectively. These temperature are
the normal operating range of the thermostat.

(Slow to Heat)

Use a temperature stick to determine a thermostats operating temperature by rubbing 87°C (188°F) and 97°C (206°F) sticks on coolant outlet.
The marks made by the sticks should melt when coolant temperatures reach 87°C (188°F) and 97°C (206°F), respectively. These temperature are
the normal operating range of the thermostat.

Thermostat, Engine Cooling|Specifications|Page 2703 > < Coolant Temperature Sensor/Switch (For Computer)|Locations|Page 2699