C 1500 Yukon 2WD V8-5.3L VIN Z Flex Fuel (2003)
5. If equipped with RPO C36 auxiliary heater, remove the surge tank/heater outlet hose (1) from the mounting clip.
6. Install the J43181 to the surge tank outlet hose (black connector).
7. Close the J43181 around the surge tank outlet hose.
8. Firmly pull the J43181 into the quick connect end of the outlet hose.
9. If equipped without RPO C36 auxiliary heater, firmly grasp the outlet hose. Pull the outlet hose in order to disengage the hose from the heater and
blower module.