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Thermostat Housing, Engine Cooling > < Coolant Temperature Sensor/Switch (For Computer)|Specifications|Page 4121

Sierra 1500 4WD V8-5.3L VIN Z Flex Fuel (2005)

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Thermostat: Specifications

6.6L

Thermostat Full Open Temperature .......................................................................................................................................  110 degrees C (230 degrees F)

All Other Engines

J24731-188 tempil stick melts at 87° C (188° F). The thermostat should begin to open.
J24731-206 tempil stick melts at 97° C (206° F). The thermostat should be fully open.

Thermostat Housing, Engine Cooling > < Coolant Temperature Sensor/Switch (For Computer)|Specifications|Page 4121