Heater Core Replacement

WARNING: This page is about a different car, the 2011 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Heater Core & Components

Courtesy of GENERAL MOTORS COMPANY

Callout	Component Name
Preliminary Procedure Remove the HVAC module assembly. Refer to Air Conditioning and Heater Module Assembly Removal and Installation . Remove the left hand floor duct. Refer to Floor Air Outlet Duct Replacement - Left Side .
1	TXV Pass Through Seal
2	Heater and A/C Pipe Cover Screw (Qty: 3) CAUTION: Refer to Fastener Caution . Tighten 1.0 N.m (9 lb in)
3	Heater and A/C Pipe Cover
4	Heater Core Tube Clamp Screw Tighten 1.0 N.m (9 lb in)
5	Heater Core Tube Clamp
6	Heater Core