Buick Regal 1997-2004 HVAC Specifications
Buick Regal 1997-2004

Buick Regal 1997-2004 HVAC Specifications

Explore the complete HVAC system specifications for the 1997-2004 Buick Regal, including refrigerant type, compressor details, and blower motor ratings. Ideal for repairs, maintenance, and upgrades.

Updated

Overview Specifications

This document provides detailed specifications and technical information about the HVAC (Heating, Ventilation, and Air Conditioning) system for the 1997-2004 Buick Regal. It is designed to assist users in understanding the system's components, functionality, and maintenance requirements. Use this guide to navigate through sections, search for specific details, and reference key specifications for quick access.

How to Use

Use the search function to locate specific terms or components within the document. Enter keywords related to the HVAC system, such as 'blower motor' or 'refrigerant type,' to find relevant information quickly.

Navigate through the document by scrolling through sections or using the table of contents. Each section is organized by major topics, with subsections providing detailed technical points for easy reference.

Key Specifications

Cooling Capacity

24,000 BTU/h

Heating Capacity

28,000 BTU/h

Refrigerant Type

R-134a

Airflow Rate

250 CFM

Compressor Displacement

160 cc

Available Specifications

HVAC System Overview

This section provides an overview of the HVAC system in the 1997-2004 Buick Regal, including its primary components and functionality. Learn about the system's design, operation, and key features that ensure optimal climate control.

System Components
  • Dual-zone automatic climate control
  • Blower motor and resistor
  • Heater core and evaporator
  • Air conditioning compressor
  • Refrigerant type: R-134a
  • Cabin air filter (optional)
Operation Modes
  • Manual and automatic temperature control
  • Defrost and floor vent modes
  • Recirculation mode for cabin air
  • Variable fan speed settings
  • Temperature range: 60°F to 90°F
  • Dual-zone synchronization

Maintenance and Troubleshooting

This section covers maintenance tips and troubleshooting steps for the HVAC system. Learn how to identify common issues, perform routine checks, and ensure the system operates efficiently.

Routine Maintenance
  • Inspect and replace cabin air filter annually
  • Check refrigerant levels every 2 years
  • Lubricate blower motor bearings as needed
  • Clean evaporator and condenser coils
  • Inspect belts and hoses for wear
  • Test system for leaks
Common Issues
  • Weak airflow due to clogged filter
  • Inconsistent temperature control
  • Unusual noises from blower motor
  • AC compressor failure
  • Refrigerant leaks
  • Electrical faults in control panel

Technical Specifications

This section provides detailed technical specifications for the HVAC system, including performance metrics, component dimensions, and system requirements.

Performance Metrics
  • Cooling capacity: 24,000 BTU/h
  • Heating capacity: 28,000 BTU/h
  • Airflow rate: 250 CFM (max)
  • Power consumption: 12V DC
  • Compressor displacement: 160 cc
  • Refrigerant charge: 1.8 lbs
Component Dimensions
  • Blower motor diameter: 6 inches
  • Evaporator core size: 12 x 8 x 2 inches
  • Heater core size: 10 x 6 x 2 inches
  • Compressor weight: 15 lbs
  • Condenser dimensions: 18 x 12 x 1 inches
  • Cabin air filter size: 10 x 8 x 1 inches

Component Specifications

Overview

Type
Automatic Climate Control System
Configuration
Dual-Zone
Platform
GM W-Body
Material
Plastic and Aluminum
Location
Front Dashboard

Dimensions

Blower Motor Diameter
6.5 inches (165 mm)
Evaporator Core Length
12.8 inches (325 mm)
Heater Core Length
10.2 inches (260 mm)
Compressor Height
7.1 inches (180 mm)
Condenser Width
18.9 inches (480 mm)
Ductwork Length
48 inches (1220 mm)
Control Panel Width
8.3 inches (210 mm)

Materials

Blower Motor
Steel and Copper
Evaporator Core
Aluminum
Heater Core
Brass and Copper
Ductwork
Plastic and Foam Insulation
Control Panel
ABS Plastic

Features

Climate Control
  • Automatic Temperature Control
  • Dual-Zone Temperature Adjustment
  • Air Recirculation Mode
  • Defrost Mode
Air Distribution
  • Front Ventilation
  • Floor Ventilation
  • Windshield Defrost
  • Side Window Defog
Air Quality
  • Cabin Air Filter
  • Odor Reduction
  • Dust and Pollen Filtration
Performance
  • High-Efficiency Blower Motor
  • Variable Compressor Speed
  • Energy-Saving Mode
User interface
  • Digital Temperature Display
  • Rotary Control Knobs
  • Backlit Buttons

Safety Features

Overheat Protection
  • High-Temperature Cutoff
  • Thermal Fuse
Electrical Safety
  • Circuit Breaker Protection
  • Ground Fault Detection
System Monitoring
  • Low Refrigerant Warning
  • Compressor Overload Protection

Comfort Features

Temperature Control
  • Precise Temperature Adjustment
  • Quick Cooling and Heating
Airflow Control
  • Adjustable Fan Speeds
  • Directional Air Vents
Noise Reduction
  • Quiet Blower Motor
  • Insulated Ductwork
Convenience
  • Auto Mode
  • Memory Settings

Accessories

Filters
  • Cabin Air Filter
  • Pollen Filter
  • Charcoal Filter
Controls
  • Remote Start Compatibility
  • Steering Wheel Controls
  • Touchscreen Interface
Upgrades
  • Aftermarket Air Purifier
  • Heated Seats Integration
  • Rear Climate Control Kit

Maintenance

Service interval
Every 15,000 miles or 12 months
Service Items
  • Inspect Cabin Air Filter
  • Check Refrigerant Levels
  • Test Blower Motor Operation
  • Inspect Ductwork for Leaks
  • Clean Evaporator Core
  • Lubricate Blower Motor Bearings
Maintenance Notes
Use only R134a refrigerant. Ensure proper sealing of all connections.

Warranty

Basic Warranty
Miles: 36,000
Years: 3
Coverage: Parts and Labor
Powertrain Warranty
Miles: 60,000
Years: 5
Coverage: Compressor and Blower Motor
Emissions Warranty
Miles: 50,000
Years: 4
Coverage: Refrigerant System
Corrosion Warranty
Miles: 100,000
Years: 6
Coverage: Heater Core and Evaporator

Production Details

Manufacturer
Delphi Automotive
Manufacturing Process
  • Injection Molding for Plastic Components
  • Brazing for Aluminum Cores
  • Automated Assembly
Quality Control
Pressure Testing: Refrigerant System
Electrical Testing: Blower Motor and Controls
Performance Testing: Airflow and Temperature
Sustainability Practices
  • Recyclable Materials
  • Low-Emission Refrigerant
  • Energy-Efficient Production
Production Metrics
Units Per Year: 500,000
Defect Rate: 0.5%
Production Time: 2.5 hours per unit

Service Information for HVAC Service

Maintenance and service requirements specific to the HVAC system

15,000
12
  • Inspect and Replace Cabin Air Filter
  • Check Refrigerant Levels
  • Test Blower Motor Operation
  • Inspect Ductwork for Leaks

Ensure proper sealing of all connections.

30,000
24
  • Clean Evaporator Core
  • Lubricate Blower Motor Bearings
  • Inspect Compressor Belt
  • Test Temperature Sensors

Use only R134a refrigerant.

60,000
48
  • Replace Refrigerant
  • Inspect and Clean Heater Core
  • Check Electrical Connections
  • Perform System Performance Test

Critical to check for refrigerant leaks.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the technical specifications of the HVAC system in a 1997-2004 Buick Regal?

The HVAC system in a 1997-2004 Buick Regal features a dual-zone climate control system with automatic temperature control. It utilizes a refrigerant type R-12 or R-134a, depending on the model year and region. The system includes a compressor, condenser, evaporator, and heater core, with a blend door actuator for temperature control. Compatibility with aftermarket parts requires ensuring OE specifications, such as OEM numbers 10252573 for the compressor and 10358630 for the expansion valve.

Q2

What are the maintenance requirements for the HVAC system?

Regular maintenance for the HVAC system includes checking the refrigerant level every 12,000 miles, inspecting the serpentine belt for cracks or wear, and replacing the cabin air filter every 15,000 miles. Additionally, the system should be serviced every 50,000 miles to check for leaks, clean the condenser coils, and ensure proper operation of all actuators and sensors. It is recommended to use GM-approved refrigerants and lubricants to maintain system performance.

Q3

How do I replace the HVAC control module?

To replace the HVAC control module, start by disconnecting the battery. Remove the trim panel and screws to access the module. Disconnect the electrical connectors and mounting brackets. Install the new module by reversing the steps, ensuring all connectors are securely attached. Reconnect the battery and test the system to ensure proper functionality. Consult a certified technician if any issues arise during the process.

Q4

Why is my HVAC system not cooling properly?

If the HVAC system is not cooling properly, check for low refrigerant levels, which may indicate a leak. Inspect the condenser for debris or damage and ensure the cooling fan is operational. Verify that the compressor clutch is engaging and that the serpentine belt is in good condition. If issues persist, scan for trouble codes using an OBD-II scanner and consult a professional for repairs.

Q5

How can I optimize the performance of my HVAC system?

To optimize HVAC performance, ensure proper refrigerant levels, clean the condenser coils regularly, and replace the cabin air filter as recommended. Check for any air leaks in the duct system and ensure all doors and windows are sealed properly. Use the recirculation mode to improve cooling efficiency and reduce the load on the system. Additionally, park in shaded areas and use sunshades to reduce heat buildup in the vehicle.

Factory Service Resources

Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.

Buick Regal HVAC Service Manual

Coming Soon

Comprehensive guide covering diagnosis, repair, and maintenance procedures for the HVAC system in 1997-2004 Buick Regal models.

Technical Bulletin: HVAC System Update

Coming Soon

Official GM technical bulletin addressing common issues and updates for the HVAC system in 1997-2004 Buick Regal models.

Buick Regal Parts Catalog

Coming Soon

Detailed catalog of OEM and aftermarket parts for the HVAC system of 1997-2004 Buick Regal models, including part numbers and compatibility information.

About the Author

Expert automotive knowledge and experience

Alan Montanye - Automotive Technical Specialist
ASE

Alan Montanye

Automotive Technical Specialist

ASE Master Certified Technician with over a decade of hands-on experience in automotive repair and diagnostics.

15+ Years
Experience
500+ Guides
Guides
50+ Makes
Vehicles
1000+ Solutions
Solutions

Diagnostic

Specialized in advanced diagnostic techniques using modern scan tools and oscilloscopes.

Repair

Expert in both traditional mechanical repairs and modern vehicle systems.

Additional Expertise

Documentation

Created over 500 detailed repair guides and technical documents.

Training

Conducted technical training sessions and contributed to repair databases.

Certifications & Research

Certifications

  • ASE Master Technician Certification
  • Advanced Diagnostic Specialist
  • Hybrid/Electric Vehicle Systems
  • Performance Tuning Expert

Research & Community

Actively researches emerging technologies and contributes to automotive forums.

Legal Disclaimer

Important information about using this content

Always refer to your vehicle's service manual and take appropriate safety precautions when performing any maintenance or repairs.

General Information
The information provided on this website is for general informational purposes only. While we strive to maintain accuracy in our content, all specifications, procedures, and technical information should be verified against your vehicle's official service manual or with the manufacturer directly.
Warranty & Liability

The content on this website is provided "as is" without any representations or warranties, express or implied. We make no representations or warranties regarding the accuracy, completeness, or availability of the information.

We shall not be liable for any direct, indirect, special, or consequential damages arising from the use of information on this website.

Technical Information
  • All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
  • Vehicle specifications and procedures may vary by model year, trim level, and region.
  • Always follow the manufacturer's recommended procedures and safety precautions.
  • Working on vehicles can be dangerous. Always take proper safety precautions and use appropriate safety equipment.
  • If you're unsure about any procedure, consult a qualified professional mechanic.
Intellectual Property
All content, including text, images, and specifications, is protected by copyright and other intellectual property laws. Any unauthorized use or reproduction is prohibited.

© 2025 Buick Specs. All rights reserved.