Dodge Caravan 1984-1990 Fuel System Specifications
Dodge Caravan 1984-1990

Dodge Caravan 1984-1990 Fuel System Specifications

Explore detailed fuel specifications for the 1984-1990 Dodge Caravan, including fuel type, tank capacity, system type, and economy. This guide is essential for maintenance, repairs, and performance optimization of your Dodge Caravan.

Updated

Overview Specifications

This document provides detailed fuel specifications for the 1984-1990 Dodge Caravan. It includes information on fuel types, fuel economy, tank capacity, and related technical details. Use this guide to understand the fuel-related features of the vehicle and optimize its 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 phrases related to fuel specifications. Enter keywords like 'fuel economy' or 'tank capacity' to quickly locate relevant information.

Navigate through the document using the section titles. Each section contains subsections with detailed points. Use the quick reference table at the end for a summary of key specifications.

Key Specifications

Fuel Type

Regular Unleaded (87 octane)

Fuel Tank Capacity

20 gallons

City MPG

18-20 MPG

Highway MPG

24-26 MPG

Combined MPG

20-22 MPG

Available Specifications

Fuel Types and Requirements

This section covers the types of fuel recommended for the 1984-1990 Dodge Caravan, including octane ratings and any special requirements for optimal performance.

Recommended Fuel Types
  • Regular unleaded gasoline (87 octane)
  • Mid-grade gasoline (89 octane) for improved performance
  • Premium gasoline (91+ octane) not required but can be used
  • Avoid using diesel or alternative fuels
Fuel Additives
  • Use fuel injector cleaners periodically
  • Avoid additives with high alcohol content
  • Follow manufacturer guidelines for additives
  • Check for compatibility with catalytic converters

Fuel Economy

This section provides details on the fuel efficiency of the 1984-1990 Dodge Caravan, including city, highway, and combined MPG ratings.

MPG Ratings
  • City MPG: 18-20
  • Highway MPG: 24-26
  • Combined MPG: 20-22
  • Actual mileage may vary based on driving conditions
Factors Affecting Fuel Economy
  • Driving habits (aggressive vs. conservative)
  • Vehicle load and cargo weight
  • Tire pressure and alignment
  • Environmental conditions (temperature, altitude)

Fuel Tank and Capacity

This section outlines the fuel tank specifications, including capacity, materials, and maintenance tips.

Tank Capacity
  • Standard fuel tank capacity: 20 gallons
  • Reserve capacity: 2-3 gallons
  • Material: Steel with anti-corrosion coating
  • Check for leaks or damage periodically
Fuel Gauge and Indicators
  • Analog fuel gauge on dashboard
  • Low fuel warning light activates at 2-3 gallons
  • Ensure gauge accuracy by regular calibration
  • Monitor fuel levels during long trips

Component Specifications

Overview

Type
Gasoline
Configuration
Front-engine, front-wheel drive
Platform
Chrysler S platform
Material
Steel fuel tank
Location
Underbody, rear of vehicle

Dimensions

Fuel Tank Capacity
20 gallons (75.7 liters)
Fuel Tank Length
36 inches (91.4 cm)
Fuel Tank Width
24 inches (61 cm)
Fuel Tank Height
12 inches (30.5 cm)
Fuel Line Diameter
0.375 inches (9.5 mm)
Fuel Pump Pressure
12-15 psi (0.83-1.03 bar)
Fuel Filter Size
2.5 inches x 1.5 inches (6.35 cm x 3.81 cm)

Materials

Fuel Tank
Steel with corrosion-resistant coating
Fuel Lines
Nitrile rubber with steel reinforcement
Fuel Pump
Plastic housing with metal internals
Fuel Filter
Paper element with metal casing

Features

Fuel Delivery
  • Mechanical fuel pump (1984-1986)
  • Electric fuel pump (1987-1990)
  • Single-point fuel injection (1988-1990)
  • Carburetor system (1984-1987)
Fuel Tank
  • 20-gallon capacity
  • Internal baffles for fuel stability
  • Ventilation system for pressure regulation
  • Dual fuel pickup tubes (optional)
Fuel Lines
  • High-pressure rated
  • Heat-resistant insulation
  • Quick-connect fittings
  • Rust-resistant coating
Fuel Pump
  • In-tank design (1987-1990)
  • 12-volt electric motor
  • Built-in fuel filter
  • Pressure relief valve
Fuel Filter
  • Replaceable cartridge
  • 10-micron filtration
  • Metal housing
  • Threaded connections

Safety Features

Fuel Tank
  • Impact-resistant design
  • Rollover valve
  • Vapor recovery system
Fuel Lines
  • Fire-resistant materials
  • Leak detection system
Fuel Pump
  • Automatic shutoff in case of engine failure
  • Overpressure protection

Comfort Features

Fuel Gauge
  • Analog display
  • Low fuel warning light
  • Accurate level sensing
Refueling
  • Easy-access fuel door
  • Lockable fuel cap
  • Vapor recovery nozzle compatibility
Noise Reduction
  • Insulated fuel pump
  • Vibration dampening mounts

Accessories

Fuel Caps
  • Locking fuel cap
  • Vented fuel cap
  • Non-vented fuel cap
Fuel Additives
  • Fuel system cleaner
  • Octane booster
  • Fuel stabilizer
Fuel Gauges
  • Digital fuel gauge
  • Aftermarket fuel level sensor
  • Fuel flow meter

Maintenance

Service interval
Every 30,000 miles or 24 months
Service Items
  • Replace fuel filter
  • Inspect fuel lines for leaks
  • Check fuel pump pressure
  • Clean fuel injectors (1988-1990)
  • Inspect fuel tank for corrosion
Maintenance Notes
  • Use only unleaded gasoline
  • Avoid ethanol blends above 10%
  • Regularly check fuel cap seal

Warranty

Fuel Tank
Miles: 60,000
Years: 5
Coverage: Corrosion and leaks
Fuel Pump
Miles: 36,000
Years: 3
Coverage: Mechanical failure
Fuel Lines
Miles: 50,000
Years: 4
Coverage: Leaks and cracks
Fuel Filter
Miles: 12,000
Years: 1
Coverage: Manufacturing defects

Production Details

Manufacturer
Chrysler Corporation
Manufacturing Process
  • Stamped steel fuel tank
  • Robotic welding
  • Pressure testing
  • Corrosion coating
Quality Control
Leak Test: 100% tested
Pressure Test: 15 psi for 10 minutes
Corrosion Test: Salt spray exposure
Sustainability Practices
  • Recycled steel content
  • Low-VOC coatings
  • Energy-efficient manufacturing
Production Metrics
Annual Production: Approx. 150,000 units
Defect Rate: Less than 0.5%
Recycling Rate: 95% of materials

Service Information for fuel Service

Maintenance and service requirements specific to the fuel system

30,000
24
  • Replace fuel filter
  • Inspect fuel lines for cracks or leaks
  • Check fuel pump pressure
  • Test fuel injectors (1988-1990)
  • Inspect fuel tank for corrosion

Use only manufacturer-approved replacement parts

60,000
48
  • Replace fuel pump (if necessary)
  • Flush fuel lines
  • Clean fuel tank
  • Replace fuel pressure regulator (1988-1990)
  • Inspect fuel vapor recovery system

Special tools required for fuel pump replacement

100,000
84
  • Replace fuel tank if corroded
  • Replace all fuel lines
  • Replace fuel injectors (1988-1990)
  • Rebuild or replace carburetor (1984-1987)
  • Perform complete fuel system pressure test

Major service requiring professional equipment

Frequently Asked Questions

Find answers to common questions about torque specifications

Q1

What type of fuel is compatible with the 1984-1990 Dodge Caravan?

The 1984-1990 Dodge Caravan is compatible with regular unleaded gasoline with an octane rating of 87. Using higher octane fuel is not necessary and will not improve performance. Avoid using diesel or ethanol blends above 10%, as they may cause engine damage or reduce efficiency. Always refer to the owner's manual for specific fuel recommendations and ensure the fuel cap is tightly sealed to prevent evaporation.

Q2

What are the maintenance requirements for the fuel system in a 1984-1990 Dodge Caravan?

Regular maintenance for the fuel system includes inspecting and replacing the fuel filter every 30,000 miles, checking fuel lines for leaks or cracks, and ensuring the fuel injectors are clean. The fuel pump should be tested for proper pressure, and the fuel tank should be inspected for rust or damage. Use fuel system cleaners periodically to prevent buildup and maintain optimal engine performance.

Q3

How do I replace the fuel pump in a 1984-1990 Dodge Caravan?

To replace the fuel pump, first, disconnect the battery and relieve fuel system pressure. Remove the fuel tank by disconnecting the fuel lines, straps, and electrical connectors. Drain the tank and remove the old fuel pump assembly. Install the new pump, ensuring all seals and gaskets are properly seated. Reattach the fuel tank, reconnect all lines and connectors, and test the system for leaks before starting the engine.

Q4

What should I do if my 1984-1990 Dodge Caravan has poor fuel efficiency?

Poor fuel efficiency can result from clogged fuel injectors, a dirty air filter, or a malfunctioning oxygen sensor. Check and replace the air filter if necessary, and use a fuel injector cleaner. Inspect the oxygen sensor and replace it if faulty. Ensure tires are properly inflated and the engine is tuned up regularly. If issues persist, consult a mechanic for a thorough diagnostic.

Q5

How can I optimize the fuel performance of my 1984-1990 Dodge Caravan?

To optimize fuel performance, maintain a regular service schedule, including oil changes and air filter replacements. Use high-quality fuel and additives to keep the fuel system clean. Drive at consistent speeds and avoid rapid acceleration or braking. Ensure the engine is properly tuned, and check tire pressure regularly. Reducing vehicle weight and avoiding excessive idling can also improve fuel efficiency.

Factory Service Resources

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

1984-1990 Dodge Caravan Service Manual

Coming Soon

Comprehensive guide covering maintenance, repairs, and technical specifications for the 1984-1990 Dodge Caravan.

Technical Service Bulletin: Fuel System Updates

Coming Soon

Details updates and fixes for common fuel system issues in the 1984-1990 Dodge Caravan.

Dodge Caravan Parts and Accessories Catalog

Coming Soon

Catalog listing OEM and aftermarket parts for the 1984-1990 Dodge Caravan, including fuel system components.

About the Author

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Alan Montanye - Automotive Technical Specialist
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Alan Montanye

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