Sierra 2500 4WD V8-8.1L VIN G (2006)
3. Using the J 43181 disconnect the heater hoses from the heater core outlet.
1. Install the J 43181 to the heater core pipe.
2. Close the tool around the heater core pipe.
3. Firmly pull the tool into the quick connect end of the heater hose.
4. Firmly grasp the heater hose. Pull the heater hose forward in order to disengage the hose from the heater core.
