This comprehensive Porsche 911 Carrera 4 Service Repair Manual covers all models produced between 1989 and 1994. It provides detailed instructions and illustrations for a wide range of repair and maintenance procedures, making it an invaluable resource for both experienced mechanics and DIY enthusiasts. The manual is organized for ease of use, with a numbered table of contents allowing quick access to the information you need. It includes detailed substeps expanding on repair procedures, along with notes, cautions, and warnings to highlight critical information. The manual covers essential topics such as general maintenance, troubleshooting, engine service and repair, transmission service and repair, brake system, wiring diagrams, electrical system, suspension, periodic lubrication, steering, cooling system, fuel injection, fuel system, emission system, heater and air conditioning, engine control system, chassis and body, restraint system, interior, differential and drive, and axle. Each chapter is accompanied by numerous illustrations, drawings, and photos to guide you through every procedure. Enlarged insets help you identify and examine parts in greater detail, ensuring a clear understanding of each step. Whether you're performing routine maintenance or tackling a complex repair, this comprehensive manual provides the knowledge and guidance you need to keep your Porsche 911 Carrera 4 running smoothly.

The Porsche 911 Carrera 4, produced from 1989 to 1994, represents a significant evolution in the iconic 911 lineage. This generation, internally known as the 964, marked the introduction of all-wheel drive to the 911, significantly enhancing its handling and performance in various conditions. The Carrera 4, along with its rear-wheel-drive counterpart, the Carrera 2, shared a host of upgrades, including a more aerodynamic body, a new suspension system with improved handling characteristics, and a powerful 3.6-liter flat-six engine. This engine, producing 250 horsepower, offered a significant increase in power compared to its predecessors, propelling the 911 Carrera 4 to a top speed of 158 mph. The 911 Carrera 4's all-wheel drive system, known as Porsche's "Porsche Traction Management" or PTM, utilized a viscous coupling to distribute power between the front and rear axles. This system automatically engaged the front wheels when slippage was detected on the rear axle, enhancing traction and stability, particularly in challenging conditions. The 911 Carrera 4 also featured an advanced suspension system that included independent MacPherson struts at the front and a multi-link setup at the rear. This system, coupled with the all-wheel drive, provided superior handling and control, allowing the Carrera 4 to navigate corners with impressive agility and precision. The 911 Carrera 4, with its sleek design, powerful engine, and advanced all-wheel drive system, solidified its reputation as a true sports car legend.