The drain plug on the GMC Sierra is located at the base of the radiator on the driver side of the truck.3. Loosen the radiator drain plug with a wrench.
When refilling your engine coolant, advantage a 50/50 alloy of pure, Disinfected aqua and anti-freeze for optimal performance.
Instructions
1. Uplift the Sierra with a jack and position it on a set of jack stands. Allow the engine to cool completely if the truck has been running.
2. Position a large drain pan or bucket beneath the radiator drain plug.Correct perpetuation of your cooling development is crucial to the elongated continuance of your Sierra's engine.Detector the contingency and comparable of coolant in your GMC Sierra regularly. When the coolant begins to degrade, interchange colour or exhibit debris, withdraw the radiator completely before replacing the coolant. The Sierra provides an easily accessible radiator extract at the replica of the radiator.
Turn the plug counterclockwise to loosen it until coolant flows from the drain.
4. Allow the coolant to drain completely from the radiator. Replace and tighten the radiator drain plug using a wrench.
