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Jeep Wrangler 1987-1995 HVAC Specifications
Explore detailed HVAC specifications for the 1987-1995 Jeep Wrangler. Learn about system components, performance metrics, and maintenance tips to enhance your vehicle's heating and cooling system.
Overview Specifications
This document provides detailed HVAC specifications for the 1987-1995 Jeep Wrangler. It includes information on the heating, ventilation, and air conditioning systems, their components, and how to maintain them. Use this guide to understand the technical aspects of the HVAC system, troubleshoot issues, and find key specifications quickly. The document is organized into sections for easy navigation and includes a quick reference for essential details.
How to Use
Use the search functionality to find specific terms or components within the document. Enter keywords related to the HVAC system, such as 'blower motor' or 'evaporator core,' to locate relevant information quickly.
Navigate through the document by scrolling through the sections or using the table of contents. Each section is labeled with a title and description to help you find the information you need efficiently.
Key Specifications
Heater Core Size
8 x 6 inches
Blower Motor Speed
2-4 speeds
Compressor Type
R4 piston
Refrigerant Type
R-12 or R-134a
Ventilation Duct Diameter
2.5 inches
Available Specifications
Heating System
This section covers the heating system of the 1987-1995 Jeep Wrangler, including the heater core, blower motor, and controls. Learn about the components, their functions, and how to maintain them for optimal performance.
Heating System
This section covers the heating system of the 1987-1995 Jeep Wrangler, including the heater core, blower motor, and controls. Learn about the components, their functions, and how to maintain them for optimal performance.
Heater Core
- Located behind the dashboard
- Transfers heat from engine coolant to cabin
- Made of aluminum or brass for durability
- Prone to clogging and leaks over time
- Regular flushing recommended for maintenance
Blower Motor
- Responsible for circulating air through the vents
- Located in the HVAC housing under the dashboard
- Available in single-speed or multi-speed versions
- Common issues include motor failure or resistor problems
- Replacement requires dashboard removal in some cases
Air Conditioning System
This section details the air conditioning system, including the compressor, condenser, evaporator, and refrigerant. Understand the components and how to troubleshoot common issues.
Air Conditioning System
This section details the air conditioning system, including the compressor, condenser, evaporator, and refrigerant. Understand the components and how to troubleshoot common issues.
Compressor
- Driven by the engine via a belt
- Compresses refrigerant to cool the cabin
- Common issues include clutch failure or leaks
- Requires proper lubrication for longevity
- Replacement involves evacuating and recharging the system
Evaporator Core
- Located inside the HVAC housing
- Absorbs heat from the cabin air
- Prone to freezing or clogging if airflow is restricted
- Leaks can cause refrigerant loss
- Replacement requires dashboard removal
Ventilation System
This section explains the ventilation system, including the ductwork, vents, and controls. Learn how air is directed through the cabin and how to maintain the system.
Ventilation System
This section explains the ventilation system, including the ductwork, vents, and controls. Learn how air is directed through the cabin and how to maintain the system.
Ductwork
- Distributes air throughout the cabin
- Made of plastic or rubber materials
- Prone to cracks or leaks over time
- Regular inspection recommended
- Replacement parts widely available
Vents and Controls
- Manual controls for temperature and airflow
- Vents adjustable for direction and intensity
- Common issues include broken knobs or cables
- Easy to replace with basic tools
- Ensure proper alignment for optimal airflow
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Component Specifications
Overview
- Type
- Manual Air Conditioning and Heating System
- Configuration
- Front Cab System
- Platform
- Jeep Wrangler YJ Series
- Material
- Plastic and Metal Composite
- Location
- Dashboard and Engine Compartment
Dimensions
- Evaporator Core Width
- 12.5 inches / 31.75 cm
- Evaporator Core Height
- 8.25 inches / 20.95 cm
- Heater Core Width
- 10.5 inches / 26.67 cm
- Heater Core Height
- 6.75 inches / 17.15 cm
- Blower Motor Diameter
- 6 inches / 15.24 cm
- Compressor Length
- 9.75 inches / 24.77 cm
- Condenser Width
- 18 inches / 45.72 cm
Materials
- Evaporator Core
- Aluminum
- Heater Core
- Copper and Brass
- Blower Motor
- Steel and Plastic
- Compressor
- Aluminum Alloy
- Ducting
- Thermoplastic
Features
- Climate Control
-
- Manual Temperature Adjustment
- Defrost Function
- Fresh Air Intake
- Recirculation Mode
- Air Distribution
-
- Dashboard Vents
- Floor Vents
- Windshield Defrost Vents
- Side Window Defrost Vents
- Blowers
-
- Variable Speed Blower
- Two-Speed Settings
- Direct Airflow Control
- Cooling
-
- R-12 Refrigerant System
- Evaporator Core Cooling
- Condenser Heat Dissipation
- Heating
-
- Engine Coolant Heating System
- Heater Core Heat Transfer
- Manual Heat Control
Safety Features
- Overheat Protection
-
- High-Pressure Cutoff Switch
- Thermal Fuse
- Air Quality
-
- Cabin Air Filter
- Recirculation Mode for Polluted Air
- Electrical Safety
-
- Fuse Protection
- Wiring Insulation
Comfort Features
- Temperature Control
-
- Manual Dial Adjustment
- Gradual Temperature Change
- Airflow Control
-
- Adjustable Vents
- Directable Airflow
- Noise Reduction
-
- Insulated Ducting
- Quiet Blower Motor
- Defrosting
-
- Quick Windshield Defrost
- Side Window Defrost
Accessories
- Controls
-
- Temperature Dial
- Blower Speed Switch
- Air Distribution Lever
- Ducting
-
- Dashboard Ducts
- Floor Ducts
- Defrost Ducts
- Filters
-
- Cabin Air Filter
- Blower Motor Filter
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect Refrigerant Levels
- Check Blower Motor Function
- Clean Evaporator Core
- Inspect Heater Core for Leaks
- Test Compressor Operation
- Maintenance Notes
- Use only R-12 refrigerant; replace cabin air filter annually.
Warranty
- Basic Warranty
- Miles: 36,000Years: 3Coverage: Parts and Labor
- Compressor Warranty
- Miles: 50,000Years: 5Coverage: Parts Only
- Heater Core Warranty
- Miles: 50,000Years: 5Coverage: Parts Only
- Extended Warranty
- Miles: 100,000Years: 7Coverage: Parts and Labor with Deductible
Production Details
- Manufacturer
- Jeep/Chrysler Corporation
- Manufacturing Process
-
- Die-Casting for Metal Components
- Injection Molding for Plastic Parts
- Assembly Line Integration
- Quality Control
- Testing: Pressure Testing for Cores, Electrical Testing for Motors, Leak Testing for Refrigerant SystemStandards: ISO 9001 Compliance, Automotive Industry Standards
- Sustainability Practices
-
- Recyclable Materials
- Energy-Efficient Manufacturing
- Production Metrics
- Units Per Year: 150,000Defect Rate: 0.5%
Service Information for HVAC Service
Maintenance and service requirements specific to the HVAC system
- Inspect Refrigerant Levels
- Check Blower Motor Function
- Clean Evaporator Core
- Test Compressor Operation
- Inspect Ducting for Leaks
Ensure proper refrigerant type is used.
- Replace Cabin Air Filter
- Inspect Heater Core for Leaks
- Check Electrical Connections
- Test Temperature Control Dial
- Clean Condenser
Use OEM parts for replacements.
- Flush Heater Core
- Replace Blower Motor if Necessary
- Overhaul Compressor
- Inspect and Replace Ducting if Needed
- Test All HVAC Functions
Major service may require specialized tools.
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Is the HVAC system compatible with both 1987-1995 Jeep Wrangler models?
Is the HVAC system compatible with both 1987-1995 Jeep Wrangler models?
The HVAC system for 1987-1995 Jeep Wrangler models is generally compatible across these years. However, minor variations in wiring harnesses or mounting brackets may exist due to model year updates. Ensure compatibility by verifying part numbers and consulting with a professional or the vehicle’s service manual before installation.
Q2 What are the maintenance requirements for the HVAC system in a 1987-1995 Jeep Wrangler?
What are the maintenance requirements for the HVAC system in a 1987-1995 Jeep Wrangler?
Regular maintenance for the HVAC system includes inspecting and replacing the cabin air filter, checking refrigerant levels, and ensuring the blower motor and fan operate smoothly. Clean the evaporator and condenser coils annually. Lubricate moving parts and inspect hoses for leaks or cracks. A professional inspection every 12-18 months is recommended to maintain optimal performance.
Q3 How do I replace the HVAC system in a 1987-1995 Jeep Wrangler?
How do I replace the HVAC system in a 1987-1995 Jeep Wrangler?
To replace the HVAC system, first disconnect the battery. Remove the dashboard components to access the HVAC unit. Disconnect electrical connectors, refrigerant lines, and mounting bolts. Install the new unit by reversing the steps, ensuring all connections are secure. Recharge the refrigerant system and test for proper operation. Refer to the service manual for detailed instructions.
Q4 What should I do if the HVAC system in my Jeep Wrangler is not cooling properly?
What should I do if the HVAC system in my Jeep Wrangler is not cooling properly?
If the HVAC system is not cooling, check refrigerant levels and refill if low. Inspect for leaks in the refrigerant lines. Clean or replace the cabin air filter and ensure the condenser and evaporator coils are debris-free. Test the blower motor and fan for proper operation. If issues persist, consult a professional for further diagnosis.
Q5 How can I optimize the performance of my Jeep Wrangler’s HVAC system?
How can I optimize the performance of my Jeep Wrangler’s HVAC system?
To optimize performance, ensure the system is free of obstructions and debris. Regularly check and maintain refrigerant levels. Use a high-quality cabin air filter and replace it as needed. Park in shaded areas to reduce cooling load. Periodically inspect and clean the condenser and evaporator coils. Properly maintain the blower motor and fan for efficient airflow.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1987-1995 Jeep Wrangler HVAC Service Manual
Coming SoonDetailed service manual covering HVAC system installation, maintenance, and troubleshooting for 1987-1995 Jeep Wrangler models.
HVAC System Technical Service Bulletin
Coming SoonTechnical bulletin addressing common issues, updates, and fixes for the HVAC system in 1987-1995 Jeep Wrangler models.
Jeep Wrangler HVAC Parts Catalog
Coming SoonComprehensive catalog listing HVAC system parts, accessories, and compatibility for 1987-1995 Jeep Wrangler models.
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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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