How to replace the Heater Core on 2003 Chevrolet Malibu?

The replacement of heater core requires HVAC module assembly detachment then heater core case cover removal. The heater core bracket needs removal while also dismantling its screw before proceeding to remove the heater core. Install the heater core within the HVAC module by using the heater core bracket and screw yet keep the bracket screw tight to 1 N.m (9 lb in). Follow this step by installing the heater core case cover together with its screws then tighten the cover screws to 1 N.m (9 lb in). Last, reassemble the HVAC module assembly.

OEM 2003 Chevrolet Malibu Heater Core

HVAC Heater Core

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2003 Chevrolet Malibu Heater Core
Part Number: 89018432
Product Specifications
- Other Name: Core, Heater Core; HVAC Heater Core
- Replaces: 52470829, 52481264
- Item Weight: 4.30 Pounds
- Item Dimensions: 20.6 x 16.0 x 8.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 89018432
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2003 Chevrolet Malibu Submodels:
- Base, LS | 4 Cyl 2.4 L GAS, 6 Cyl 3.1 L GAS

2003 Chevrolet Malibu Heater Core

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2003 Chevrolet Malibu Parts Questions & Experts Answers

Q: How to replace the Heater Core on 2003 Chevrolet Malibu?
A: The replacement of heater core requires HVAC module assembly detachment then heater core case cover removal. The heater core bracket needs removal while also dismantling its screw before proceeding to remove the heater core. Install the heater core within the HVAC module by using the heater core bracket and screw yet keep the bracket screw tight to 1 N.m (9 lb in). Follow this step by installing the heater core case cover together with its screws then tighten the cover screws to 1 N.m (9 lb in). Last, reassemble the HVAC module assembly.

Related 2003 Chevrolet Malibu Parts

Alternate Year Models

2002 Chevrolet Malibu Heater Core 2004 Chevrolet Malibu Heater Core