How to Address Issues with the Heater Core on 2001 Buick Regal?

To replace the heater core, the fuel injector sight shield needs to be removed and the coolant drained completely. Remove the lower floor console and instrument panel insulators and the heater hoses. Remove heater core outlet cover, pull off screws and remove heater core. Replace the new seals and heater core, tightening all the screws. Re-attach parts and restock the coolant.

OEM 2001 Buick Regal Heater Core

HVAC Heater Core

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2001 Buick Regal Heater Core Part Number: 88956887
Product Specifications
- Other Name: Core, Heater Core; HVAC Heater Core
- Replaces: 52465600, 52481498
- Item Weight: 4.40 Pounds
- Item Dimensions: 8.4 x 20.6 x 16.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 88956887
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2001 Buick Regal Submodels:
- 25th Anniversary Edition, GS, GSE, LS, LSE | 6 Cyl 3.8 L GAS

2001 Buick Regal Heater Core

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2001 Buick Regal Heater Core Parts and Q&A

Q: How to Address Issues with the Heater Core on 2001 Buick Regal?
A: To replace the heater core, the fuel injector sight shield needs to be removed and the coolant drained completely. Remove the lower floor console and instrument panel insulators and the heater hoses. Remove heater core outlet cover, pull off screws and remove heater core. Replace the new seals and heater core, tightening all the screws. Re-attach parts and restock the coolant.