Auxiliary Heater Core Replacement. GMC Truck Yukon Denali 2009

GM Service Manual Online

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2009 🢒 Yukon Denali 🢒 HVAC 🢒 Heating, Ventilation, and Air Conditioning 🢒 Auxiliary Heater Core Replacement

Auxiliary Heater Core Replacement Extended Wheelbase

Object Number: 1699939 Size: SF

Callout	Component Name
Preliminary Procedure Remove the HVAC module - auxiliary. Refer to Auxiliary HVAC Module Replacement. Disconnect any wiring connectors or harnesses from HVAC module.
1	Auxiliary HVAC Module Lower Cover Bolt (Qty: 4) Caution: Refer to Fastener Caution in the Preface section. Tip Remove any fastener clips that secure cover to module. Tighten 9 N·m (80 lb in)
2	Auxiliary HVAC Module Lower Cover
3	Auxiliary HVAC Heater Core Tip Ensure all seals and gaskets are in place upon installation.

Auxiliary Heater Core Replacement Standard Wheelbase

Object Number: 1848584 Size: MF

Callout	Component Name
Preliminary Procedure Remove the HVAC module - auxiliary. Refer to Auxiliary HVAC Module Replacement. Disconnect any wiring connectors or harnesses from HVAC module.
1	HVAC Module Gasket
2	Auxiliary HVAC Module Lower Cover Bolt (Qty: 3) Caution: Refer to Fastener Caution in the Preface section. Tip Remove any fastener clips that secure cover to module. Tighten 3 N·m (27 lb in)
3	Auxiliary HVAC Module Lower Cover
4	Separate the HVAC Module Case Tip Remove any fastener clips that secure cover to module. Tighten 3 N·m (27 lb in)
5	Auxiliary HVAC Heater Core Tip Ensure all seals and gaskets are in place upon installation.