This comprehensive service and repair manual is your essential guide for maintaining and repairing your 1991 Mitsubishi GTO 3000GT. It covers every aspect of your vehicle, from basic maintenance to complex engine overhauls.

Detailed instructions, illustrations, diagrams, and wiring schematics provide step-by-step guidance for each service and repair procedure. This manual provides the information you need to perform a wide range of tasks, including:

* **Engine Overhaul and Rebuilding:**
* Learn how to completely disassemble, rebuild, and reassemble your engine.
* Detailed instructions on inspecting, cleaning, and replacing components.
* Troubleshooting and diagnostic procedures for common engine issues.
* **Brakes:**
* Comprehensive procedures for servicing all brake components, including calipers, pads, rotors, and lines.
* Adjusting brake systems for optimal performance.
* **Sunroof:**
* Detailed instructions for troubleshooting and repairing common sunroof issues.
* Proper procedures for removing, servicing, and reinstalling the sunroof mechanism.
* **Timing Belt Replacement:**
* Step-by-step guide for replacing the timing belt and related components.
* Importance of correct timing belt installation and the potential consequences of improper replacement.
* **Trouble Codes:**
* Complete list of diagnostic trouble codes and their meanings.
* Instructions for using diagnostic equipment to identify and resolve trouble codes.
* **Wiring Diagrams:**
* Comprehensive wiring diagrams for all electrical systems in your vehicle.
* Detailed explanations of circuit functions and troubleshooting tips for electrical problems.
* **Troubleshooting and Diagnostics:**
* Systematic approaches to diagnosing and resolving a wide range of mechanical and electrical issues.
* **Computer Diagnostic Trouble Tree Charts:**
* Flow charts and decision trees to guide you through diagnostic procedures for computer-controlled systems.
* **Engine Performance:**
* Information on engine tuning, performance optimization, and troubleshooting common performance issues.
* **Front End and Alignment Procedures and Specifications:**
* Detailed instructions for performing front end alignments and setting suspension parameters to factory specifications.
* **Suspension:**
* Complete instructions for servicing and repairing all suspension components, including struts, shocks, springs, and control arms.
* **Transmission Removal and Installation:**
* Step-by-step guide for removing, servicing, and reinstalling the transmission.
* **Air Conditioning Service and Capacities:**
* Procedures for servicing and recharging the air conditioning system.
* Information on refrigerant types, system pressures, and troubleshooting tips.
* **Transmission In-Car Servicing:**
* Instructions for performing essential maintenance and repairs on the transmission without removing it from the vehicle.
* **Computer Diagnostic Codes:**
* Comprehensive list of computer diagnostic codes and their definitions.
* Troubleshooting techniques for resolving computer-related issues.
* **Firing Orders:**
* Detailed information on engine firing order and spark plug configurations.
* **Detailed Specifications on Every Model Covered:**
* Precise specifications for all covered models, including engine sizes, transmission types, and other relevant data.
* **Factory Maintenance Schedules and Charts:**
* Recommended maintenance schedules and service intervals for your vehicle.
* Information on fluid capacities and recommended service procedures.
* **Serpentine Belt Routings with Diagrams:**
* Clear diagrams showing the correct routing of the serpentine belt for each engine variant.
* **Timing Belt Service Procedures:**
* Detailed instructions for replacing the timing belt, tensioner, and related components.
* **Brake Servicing Procedures:**
* Comprehensive guides for servicing all brake components, including bleeding the brake system.
* **Driving Concerns:**
* Information on common driving concerns and potential causes, along with troubleshooting tips.
* **Complete Torque Specifications:**
* Precise torque settings for all bolts and nuts on your vehicle to ensure proper tightening.
* **U-Joint and CV-Joint Service Procedures:**
* Detailed instructions for inspecting, servicing, and replacing U-joints and CV-joints.
* **Repair Procedures:**
* Thorough instructions for repairing a wide range of mechanical and electrical problems.
* **Complete Wiring Diagrams:**
* Comprehensive diagrams showing the complete electrical system, from the fuse box to individual components.
* **Hundreds of Illustrations:**
* Clear illustrations and diagrams that complement the written text and make complex procedures easier to understand.
* **Vacuum Diagrams:**
* Visual representations of the vacuum system, showing the routing of hoses and components, to aid in troubleshooting.

This manual is your ultimate resource for maintaining and repairing your 1991 Mitsubishi GTO 3000GT. You can perform repairs and maintenance confidently, saving both time and money.

The 1991 Mitsubishi GTO, known as the 3000GT in some markets, was a revolutionary sports car that marked a significant departure from Mitsubishi's previous offerings. It showcased the brand's commitment to performance and technological innovation, challenging established players in the high-performance segment. The GTO was underpinned by a sleek and aerodynamically sculpted body designed by renowned Italian designer Pininfarina, with a low-slung profile that exuded an aura of athleticism. Under the hood, the GTO boasted a 3.0-liter V6 engine, available in naturally aspirated and turbocharged configurations, delivering exhilarating power and handling. The car featured cutting-edge technology for its time, including a sophisticated all-wheel-drive system, an advanced suspension setup, and an optional active aerodynamic system that adjusted the rear wing for enhanced stability at high speeds. However, the GTO's introduction coincided with a period of economic recession, hindering its commercial success.

Despite its relatively short production run, the 1991 Mitsubishi GTO 3000GT left an indelible mark on the automotive landscape. It garnered praise for its performance capabilities, innovative features, and distinctive styling. The car's reputation for exhilarating driving dynamics and advanced technology cemented its place as a true performance icon. While its sales figures may not have reflected its inherent potential, the GTO's legacy continues to inspire car enthusiasts and collectors worldwide. The 1991 Mitsubishi GTO 3000GT stands as a testament to the brand's ambition and commitment to engineering excellence, showcasing a period of innovation and design that left a lasting impact on the automotive industry. The service and repair manual for this vehicle, available in PDF format, provides comprehensive information and detailed instructions for maintaining and repairing the complex systems of this high-performance machine, ensuring that its legacy of performance and innovation endures for generations to come.