K 2500 Truck 4WD V8-6.5L DSL Turbo VIN F (1994)
![background image](/gmc/k_2500_truck_4wd/v8-6.5l_dsl_turbo_vin_f/Page-504001.png)
Temperature Warning Lamp/Indicator: Description and Operation
A bi-metal temperature switch located in the cylinder head controls the operation of a temperature indicator light. If the engine cooling system is not
functioning properly and/or coolant temperature exceeds a predetermined value, the warning light will illuminate.