Pontiac Pontiac Grand Prix 1997-2003 HVAC Specifications
Pontiac Pontiac Grand Prix 1997-2003

Pontiac Pontiac Grand Prix 1997-2003 HVAC Specifications

Explore detailed HVAC specifications for the 1997-2003 Pontiac Grand Prix, including air conditioning, heating, blower motor, and climate control components. Essential for diagnostics, maintenance, and repairs.

Updated

Overview Specifications

This document provides detailed specifications and operational insights into the HVAC system of the 1997-2003 Pontiac Grand Prix. Designed for both automotive enthusiasts and professionals, it covers system components, maintenance tips, and troubleshooting guidance. Use this guide to understand the HVAC system's functionality, ensure optimal performance, and address common issues efficiently. The structured format allows easy navigation to specific topics of interest.

How to Use

Use the search functionality to quickly locate specific HVAC components or issues. Enter keywords such as 'blower motor' or 'air conditioning' to find relevant sections.

Navigate sections by scrolling through the document or clicking on section titles in the table of contents. Each major section is divided into subsections for detailed information.

Key Specifications

Blower Motor Voltage

12V

Refrigerant Type

R-134a

Temperature Range

60°F to 90°F

Fan Speeds

4 (Low, Medium, High, Auto)

Cabin Air Filter Replacement

Every 12,000 miles

Available Specifications

HVAC System Components

This section outlines the key components of the HVAC system in the 1997-2003 Pontiac Grand Prix. It includes details on the blower motor, evaporator, condenser, and control panel.

Blower Motor
  • Located behind the glove compartment
  • Powered by a 12V electrical system
  • Responsible for circulating air through the vents
  • Common issues include motor failure and resistor problems
  • Replacement requires removing the glove compartment
  • Recommended maintenance: Lubricate bearings annually
Evaporator and Condenser
  • Evaporator located inside the dashboard
  • Condenser positioned in front of the radiator
  • Both essential for air conditioning efficiency
  • Regular cleaning prevents clogs and leaks
  • Signs of failure: Reduced cooling and unusual odors
  • Replacement requires professional servicing

Control Panel and Settings

This section explains the HVAC control panel and its settings. It covers temperature control, fan speed, and mode selection for optimal comfort.

Temperature Control
  • Manual or automatic temperature adjustment
  • Range: 60°F to 90°F
  • Sensors monitor cabin temperature
  • Issues: Faulty dials or sensor malfunctions
  • Diagnosis requires a multimeter
  • Replacement parts available at dealerships
Fan Speed and Modes
  • Four fan speed settings: Low, Medium, High, Auto
  • Modes: Defrost, Vent, Floor, and Bi-Level
  • Switches prone to wear and tear
  • Cleaning contacts improves functionality
  • Replace switches if unresponsive
  • Common fix: Replacing the blower resistor

Maintenance and Troubleshooting

This section provides tips for maintaining the HVAC system and troubleshooting common issues. It includes advice on refrigerant levels, filter replacement, and system diagnostics.

Refrigerant and Filters
  • Refrigerant type: R-134a
  • Ideal pressure: 25-45 psi
  • Check levels annually
  • Replace cabin air filter every 12,000 miles
  • Signs of low refrigerant: Weak cooling
  • Professional recharge recommended
System Diagnostics
  • Check fuses for electrical issues
  • Inspect wiring for corrosion or damage
  • Listen for unusual noises from the blower motor
  • Test control panel functionality
  • Use a diagnostic tool for error codes
  • Consult a mechanic for complex problems

Component Specifications

Overview

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

Dimensions

Width
24.5 inches (62.23 cm)
Height
8.75 inches (22.23 cm)
Depth
10.25 inches (26.04 cm)
Blower Motor Diameter
5.5 inches (13.97 cm)
Evaporator Core Length
12 inches (30.48 cm)
Compressor Weight
14.5 lbs (6.58 kg)
Condenser Height
14 inches (35.56 cm)

Materials

Housing
High-Density Polyethylene
Evaporator Core
Aluminum
Blower Motor
Copper Windings and Steel
Compressor
Aluminum Alloy
Hoses
Reinforced Rubber

Features

Climate Control
  • Automatic Temperature Regulation
  • Defrost Mode
  • Recirculation Mode
  • Dual-Level Airflow
Air Distribution
  • Dashboard Vents
  • Floor Vents
  • Windshield Defrost Vents
  • Side Window Defrost Vents
Filtering
  • Cabin Air Filter
  • Pollen Filter
  • Odor Reduction
Controls
  • Rotary Dials
  • Push Buttons
  • Digital Display
  • Temperature Selector
Performance
  • High-Efficiency Compressor
  • Variable Blower Speeds
  • Quick Cooling

Safety Features

Overheat Protection
  • Compressor Shutoff
  • Thermal Fuse
Pressure Control
  • High-Pressure Switch
  • Low-Pressure Switch
Electrical
  • Circuit Breaker
  • Ground Fault Protection

Comfort Features

Temperature
  • Wide Range Settings
  • Dual-Level Airflow
  • Quick Heating
Air Quality
  • Cabin Air Filter
  • Odor Reduction
  • Humidity Control
Noise Reduction
  • Insulated Housing
  • Quiet Blower Motor
Convenience
  • Auto Mode
  • Defrost Timer
  • Easy-to-Use Controls

Accessories

0
Filters: Cabin Air Filter, Pollen Filter, Charcoal Filter
1
Tools: Refrigerant Recharge Kit, Vacuum Pump, Pressure Gauge Set
2
Upgrades: High-Efficiency Blower Motor, Upgraded Compressor, Performance Condenser

Maintenance

Service interval
12 months or 12,000 miles
Service Items
  • Inspect and Replace Cabin Air Filter
  • Check Refrigerant Levels
  • Inspect Compressor Belt
  • Test Blower Motor
  • Clean Evaporator Core
Maintenance Notes
Use only R134a refrigerant. Ensure proper pressure levels.

Warranty

Basic
Miles: 36,000
Years: 3
Coverage: Parts and Labor
Compressor
Miles: 50,000
Years: 5
Coverage: Parts Only
Evaporator
Miles: 50,000
Years: 5
Coverage: Parts Only
Extended
Miles: 100,000
Years: 7
Coverage: Parts and Labor
Terms: Requires dealer maintenance records

Production Details

Manufacturer
General Motors
Manufacturing Process
  • Injection Molding for Housing
  • Aluminum Casting for Components
  • Automated Assembly
Quality Control
Testing: Pressure and Leak Testing
inspection: Visual and Functional Checks
Sustainability
  • Recyclable Materials
  • Energy-Efficient Production
Production Metrics
Units Per Year: 250,000
Defect Rate: Less than 0.5%

Service Information for hvac Service

Maintenance and service requirements specific to this component

12,000
12
  • Inspect and Replace Cabin Air Filter
  • Check Refrigerant Levels
  • Inspect Compressor Belt
  • Test Blower Motor

Ensure proper refrigerant type and pressure levels.

50,000
60
  • Replace Compressor Belt
  • Clean Evaporator Core
  • Inspect Condenser
  • Check Electrical Connections

Use manufacturer-approved parts and tools.

100,000
120
  • Replace Compressor
  • Replace Blower Motor
  • Refill Refrigerant
  • Test System Performance

Perform comprehensive system diagnostics before major service.

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What are the compatibility requirements for HVAC components in a 1997-2003 Pontiac Grand Prix?

The HVAC system in the 1997-2003 Pontiac Grand Prix is compatible with specific components designed for these model years. The system uses R134a refrigerant and requires a compressor with a 10S15F or 10S20F part number. The blower motor resistor should match the 1997-2003 design (part number 15-80641). Ensure the evaporator and condenser are compatible with the original system's dimensions and specifications for proper functionality.

Q2

What are the maintenance requirements for the HVAC system in a 1997-2003 Pontiac Grand Prix?

Regular maintenance includes inspecting the refrigerant levels every 12 months and recharging if necessary. Replace the cabin air filter every 15,000 miles or as needed to ensure proper airflow. Check the blower motor and resistor for wear and tear every 30,000 miles. Inspect the compressor belt for cracks or looseness and replace it every 60,000 miles. Clean the evaporator and condenser coils annually to maintain efficiency.

Q3

How do I replace the HVAC blower motor in a 1997-2003 Pontiac Grand Prix?

To replace the blower motor, first, disconnect the negative battery terminal. Remove the glove box and locate the blower motor assembly. Disconnect the wiring harness and remove the mounting screws. Carefully pull out the old blower motor and install the new one, securing it with the mounting screws. Reconnect the wiring harness and reinstall the glove box. Reconnect the battery and test the system to ensure proper operation.

Q4

Why is my HVAC system not blowing cold air in my 1997-2003 Pontiac Grand Prix?

If your HVAC system is not blowing cold air, first check the refrigerant levels and recharge if low. Inspect the compressor for proper operation and ensure the clutch engages when the AC is turned on. Check for leaks in the refrigerant lines or condenser. Verify the blower motor is functioning and the cabin air filter is not clogged. If issues persist, inspect the blend door actuator for proper operation.

Q5

How can I optimize the performance of my HVAC system in a 1997-2003 Pontiac Grand Prix?

To optimize performance, ensure the refrigerant is at the correct level and the system is free of leaks. Regularly clean the evaporator and condenser coils to maintain efficiency. Use a high-quality cabin air filter and replace it as needed. Inspect and replace worn components like the blower motor resistor and compressor belt. Park in shaded areas to reduce the load on the AC system during hot weather.

Factory Service Resources

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

1997-2003 Pontiac Grand Prix HVAC Service Manual

Coming Soon

Comprehensive guide covering installation, maintenance, and troubleshooting for the HVAC system.

Technical Service Bulletin for HVAC System Updates

Coming Soon

Details common issues and updates for the HVAC system in 1997-2003 Pontiac Grand Prix models.

HVAC Parts and Accessories Catalog for Pontiac Grand Prix

Coming Soon

Catalog listing compatible HVAC components and accessories for 1997-2003 models.

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.

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