This comprehensive 1991 Infiniti Q45 Service and Repair Manual provides you with the essential information to maintain and repair your vehicle. Developed by automotive software experts at RepairSurge, it leverages licensed information directly from original equipment manufacturer (OEM) materials. The manual offers a vast library of information covering all aspects of your Q45, including but not limited to:

* **Engine:** Detailed specifications, repair procedures, troubleshooting guides, and maintenance schedules for your Q45's engine.
* **Brakes:** Step-by-step instructions for brake system maintenance, diagnosis, and repair.
* **Suspension:** In-depth coverage of suspension components, alignment, repair procedures, and troubleshooting.
* **Transmission:** Detailed information on transmission operation, maintenance, troubleshooting, and repair.
* **Electrical System:** Comprehensive wiring diagrams, troubleshooting guides, and repair procedures for the electrical system.
* **Body and Interior:** Instructions for repairing and maintaining body panels, interior components, and upholstery.
* **Air Conditioning:** Information on air conditioning system operation, maintenance, diagnosis, and repair.
* **Heating:** Guidance on heating system operation, maintenance, and troubleshooting.

This online manual provides you with factory-level information at your fingertips, allowing you to diagnose and repair your Q45 with the confidence of a professional. You can access the manual from any device with an internet connection, allowing you to easily find the information you need whenever you need it. Whether you're a seasoned mechanic or a DIY enthusiast, this manual empowers you to perform repairs and maintenance on your Q45 with ease and accuracy.

The 1991 Infiniti Q45 represents a landmark moment in the automotive industry, marking the debut of Nissan's luxury brand, Infiniti. This full-size luxury sedan was a statement of intent, aiming to compete head-on with the established European players like Mercedes-Benz and BMW. At its heart, the Q45 boasted a revolutionary 4.5-liter V8 engine, the first production V8 engine to feature variable valve timing (VVTi). This technology allowed for improved performance across the rev range, delivering both smooth acceleration and impressive fuel economy. The Q45 was also lauded for its advanced chassis technology, featuring a sophisticated multi-link suspension system and a highly responsive steering system. This combination resulted in a car that handled with agility and precision, offering a dynamic driving experience rarely seen in a luxury sedan of its time.

The 1991 Infiniti Q45's commitment to luxury extended beyond its performance and handling. The interior featured plush leather upholstery, a comprehensive array of amenities, and meticulous attention to detail. It was designed to provide a quiet and serene environment for passengers, elevating the driving experience to a new level of comfort and refinement. However, as with any complex mechanical system, the Q45 could experience issues over time, requiring maintenance and repairs. To address this need, the 1991 Infiniti Q45 Service & Repair Manual Software was developed. This software provides a comprehensive guide for mechanics and owners alike, offering detailed information on every aspect of the vehicle, from engine components and electrical systems to bodywork and suspension. With its step-by-step instructions, illustrations, and troubleshooting tips, it serves as an indispensable resource for ensuring the longevity and optimal performance of this remarkable vehicle.