GMC Jimmy 1995-2001 HVAC Specifications
Explore detailed HVAC specifications for the 1995-2001 GMC Jimmy, including refrigerant type, system capacity, and component dimensions. Ideal for maintenance, repair, and upgrades, this guide ensures optimal HVAC performance and compatibility.
Overview Specifications
This document provides detailed HVAC specifications for the 1995-2001 GMC Jimmy. It includes information on system components, maintenance tips, and troubleshooting guidance. Use this guide to understand the HVAC system's functionality, locate specific parts, and ensure optimal performance. The document is organized into sections for easy navigation, with quick reference tables for key specifications.
How to Use
Use the search function to find specific terms or components within the document. Enter keywords like 'blower motor' or 'refrigerant type' to quickly locate relevant information.
Navigate through the document using the section titles in the table of contents. Each section is divided into subsections with detailed points for easy reference.
Key Specifications
Refrigerant Type
R-134a
Blower Motor Power
12V DC
Compressor Type
Rotary Vane
Cabin Air Filter Size
8.5 x 7.5 x 1 inches
HVAC Control Type
Manual or Automatic
Available Specifications
HVAC System Components
This section covers the major components of the HVAC system in the 1995-2001 GMC Jimmy, including the blower motor, evaporator, condenser, and compressor. Learn about their functions and how they work together to provide heating, ventilation, and air conditioning.
HVAC System Components
This section covers the major components of the HVAC system in the 1995-2001 GMC Jimmy, including the blower motor, evaporator, condenser, and compressor. Learn about their functions and how they work together to provide heating, ventilation, and air conditioning.
Blower Motor
- Located behind the glove compartment
- Responsible for circulating air through the vents
- Operates at multiple speeds controlled by the HVAC control panel
- Common issues include motor failure or resistor problems
Evaporator and Condenser
- Evaporator cools the air by absorbing heat
- Condenser releases heat absorbed from the cabin
- Both are part of the refrigerant cycle
- Regular cleaning prevents mold and odors
Compressor
- Driven by the engine via a serpentine belt
- Compresses refrigerant to facilitate heat exchange
- Common failure points include clutch and seal issues
- Requires proper refrigerant levels for optimal performance
Maintenance and Care
Proper maintenance ensures the longevity and efficiency of the HVAC system. This section provides tips on routine checks, cleaning, and replacing components to avoid common issues.
Maintenance and Care
Proper maintenance ensures the longevity and efficiency of the HVAC system. This section provides tips on routine checks, cleaning, and replacing components to avoid common issues.
Routine Checks
- Inspect refrigerant levels annually
- Check for leaks in hoses and connections
- Test blower motor functionality
- Ensure cabin air filter is clean
Cleaning Procedures
- Clean evaporator coils to prevent mold
- Remove debris from condenser fins
- Use a vacuum to clean air ducts
- Sanitize vents to eliminate odors
Component Replacement
- Replace cabin air filter every 12,000-15,000 miles
- Inspect and replace worn serpentine belts
- Replace blower motor resistor if speeds are inconsistent
- Upgrade to R-134a refrigerant if not already in use
Troubleshooting Common Issues
This section addresses common HVAC problems in the 1995-2001 GMC Jimmy, such as weak airflow, unusual noises, and inconsistent temperature control. Follow the steps to diagnose and resolve these issues.
Troubleshooting Common Issues
This section addresses common HVAC problems in the 1995-2001 GMC Jimmy, such as weak airflow, unusual noises, and inconsistent temperature control. Follow the steps to diagnose and resolve these issues.
Weak Airflow
- Check for clogged cabin air filter
- Inspect blower motor for damage
- Test blower motor resistor
- Ensure vents are fully open
Unusual Noises
- Listen for squealing (belt or pulley issue)
- Check for rattling (loose components)
- Inspect blower motor for debris
- Test compressor for abnormal sounds
Inconsistent Temperature
- Check refrigerant levels
- Inspect thermostat operation
- Test blend door functionality
- Ensure heater core is not clogged
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Component Specifications
Overview
- Type
- Manual and Automatic Climate Control
- Configuration
- Dual-Zone Front HVAC
- Platform
- GMC Jimmy SUV
- Material
- Plastic, Aluminum, and Rubber Components
- Location
- Dashboard and Engine Compartment
Dimensions
- Evaporator Core Length
- 12.5 inches (31.75 cm)
- Evaporator Core Width
- 8.2 inches (20.83 cm)
- Heater Core Length
- 10.8 inches (27.43 cm)
- Heater Core Width
- 6.5 inches (16.51 cm)
- Blower Motor Diameter
- 5.9 inches (15 cm)
- Compressor Length
- 8.7 inches (22.1 cm)
- Compressor Width
- 5.3 inches (13.46 cm)
- Condenser Thickness
- 0.8 inches (2.03 cm)
Materials
- Evaporator Core
- Aluminum Fins with Copper Tubing
- Heater Core
- Aluminum Fins with Brass Tubing
- Blower Motor
- Steel Housing with Plastic Fan
- Compressor
- Cast Aluminum Housing
- Ducting
- Molded Plastic with Rubber Seals
Features
- Climate Control
-
- Manual Temperature Adjustment
- Automatic Temperature Regulation
- Dual-Zone Air Distribution
- Defrost Mode
- Airflow
-
- Multi-Speed Blower Fan
- Adjustable Vents
- Recirculation Mode
- Fresh Air Intake
- Cooling
-
- R134a Refrigerant System
- High-Efficiency Evaporator Core
- Variable Displacement Compressor
- Heating
-
- High-Capacity Heater Core
- Engine Coolant-Based Heating
- Adjustable Temperature Blend Door
- Filtration
-
- Cabin Air Filter
- Dust and Pollen Filtration
- Odor Reduction
Safety Features
- Overheat Protection
-
- High-Temperature Cutoff Switch
- Thermal Fuse in Blower Motor
- Refrigerant Safety
-
- Pressure Relief Valve
- Low Refrigerant Sensor
- Electrical Safety
-
- Fused Blower Circuit
- Ground Fault Protection
Comfort Features
- Temperature Control
-
- Precise Dial or Digital Controls
- Dual-Zone Temperature Settings
- Air Distribution
-
- Adjustable Dashboard Vents
- Floor and Defrost Modes
- Noise Reduction
-
- Insulated Ducting
- Quiet Blower Motor
- Convenience
-
- Quick Cool Function
- Auto Defrost
Accessories
- Controls
-
- Manual Control Knobs
- Digital Display Panel
- Temperature Sensors
- Ducting
-
- Dashboard Vent Ducts
- Floor Ducts
- Defrost Ducts
- Filters
-
- Cabin Air Filter
- Blower Motor Filter
- Evaporator Drain Filter
Maintenance
- Service interval
- Every 15,000 miles or 12 months
- Service Items
-
- Inspect Refrigerant Levels
- Check Blower Motor Operation
- Replace Cabin Air Filter
- Inspect Ducting for Leaks
- Test Compressor Clutch Engagement
- Maintenance Notes
- Ensure refrigerant is R134a and not overfilled. Check for proper drainage from evaporator.
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Parts and Labor
- Compressor Warranty
- Miles: 60,000Years: 5Coverage: Compressor and Seals
- Refrigerant Warranty
- Miles: 12,000Years: 1Coverage: Refrigerant Leaks
- Blower Warranty
- Miles: 24,000Years: 2Coverage: Blower Motor and Resistor
Production Details
- Manufacturer
- Delphi Automotive Systems
- Manufacturing Process
-
- Injection Molding for Plastic Components
- Extrusion for Aluminum Fins
- Precision Machining for Compressor
- Quality Control
- Pressure Testing: Evaporator and Heater CoresLeak Testing: Refrigerant SystemElectrical Testing: Blower Motor and Controls
- Sustainability Practices
-
- Recyclable Materials
- Low-Emission Manufacturing
- Energy-Efficient Production
- Production Metrics
- Units Per Year: 500,000Defect Rate: 0.5%Energy Usage: 15 kWh per unit
Service Information for HVAC Service
Maintenance and service requirements specific to the HVAC system
- Inspect Refrigerant Levels
- Check Blower Motor Operation
- Replace Cabin Air Filter
- Inspect Ducting for Leaks
- Test Compressor Clutch Engagement
Ensure refrigerant is R134a and not overfilled.
- Flush Heater Core
- Inspect Evaporator Drain
- Check Electrical Connections
- Test Temperature Sensors
- Lubricate Blower Motor Bearings
Use only manufacturer-approved lubricants.
- Replace Refrigerant
- Inspect Compressor Seals
- Check Condenser for Damage
- Test HVAC Control Module
- Perform System Pressure Test
Major service requires specialized equipment.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What are the technical specifications for the HVAC system in a 1995-2001 GMC Jimmy?
What are the technical specifications for the HVAC system in a 1995-2001 GMC Jimmy?
The HVAC system in the 1995-2001 GMC Jimmy includes a manual or automatic climate control system, depending on the trim level. It uses R-134a refrigerant and has a cooling capacity of approximately 24,000 BTU. The blower motor operates at multiple speeds, and the system is compatible with standard GMC Jimmy models. Ensure compatibility with your specific model year and trim for accurate performance.
Q2 What maintenance is required for the HVAC system in a 1995-2001 GMC Jimmy?
What maintenance is required for the HVAC system in a 1995-2001 GMC Jimmy?
Regular maintenance includes checking and replacing the cabin air filter every 12,000-15,000 miles, inspecting refrigerant levels annually, and ensuring the blower motor and vents are free of debris. Lubricate moving parts as needed and inspect belts and hoses for wear. Schedule professional servicing every 30,000 miles to maintain optimal performance and prevent system failures.
Q3 How do I replace the HVAC blower motor in a 1995-2001 GMC Jimmy?
How do I replace the HVAC blower motor in a 1995-2001 GMC Jimmy?
To replace the blower motor, disconnect the battery, remove the glove box, and locate the blower motor housing. Disconnect the electrical connector and mounting screws, then carefully remove the old motor. Install the new motor, secure it with screws, and reconnect the electrical connector. Reassemble the glove box and test the system to ensure proper operation.
Q4 What should I do if the HVAC system in my 1995-2001 GMC Jimmy is not cooling?
What should I do if the HVAC system in my 1995-2001 GMC Jimmy is not cooling?
If the HVAC system is not cooling, check the refrigerant levels and look for leaks. Inspect the compressor clutch for engagement and ensure the blower motor is functioning. Test the thermostat and fuses, and verify that the condenser and evaporator are clean. If issues persist, consult a professional for a detailed diagnostic and repair.
Q5 How can I optimize the performance of the HVAC system in my 1995-2001 GMC Jimmy?
How can I optimize the performance of the HVAC system in my 1995-2001 GMC Jimmy?
To optimize performance, regularly clean the condenser and evaporator coils, ensure proper refrigerant levels, and replace the cabin air filter as needed. Use the recirculation mode to reduce strain on the system and avoid overloading the blower motor. Park in shaded areas to minimize heat buildup and maintain consistent airflow through the vents.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1995-2001 GMC Jimmy HVAC Service Manual
Coming SoonDetailed service manual covering HVAC system components, troubleshooting, and repair procedures for the 1995-2001 GMC Jimmy.
Technical Service Bulletin: HVAC System Updates
Coming SoonTSB outlining common HVAC system issues, updates, and recommended fixes for the 1995-2001 GMC Jimmy.
GMC Jimmy HVAC Parts Catalog
Coming SoonComprehensive catalog of HVAC system parts and accessories for the 1995-2001 GMC Jimmy, including blower motors, compressors, and filters.
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Technical Information
- All specifications, including torque values, fluid capacities, and maintenance procedures, should be verified against your vehicle's factory service manual.
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