The Porsche 928 GT 1990-1991 Workshop Service Repair Manual is a comprehensive guide designed for both professional mechanics and DIY enthusiasts. This detailed manual offers step-by-step instructions, illustrations, exploded diagrams, and photos to guide you through every service and repair procedure for your Porsche 928 GT. The manual provides in-depth information on disassembly, assembly, repair, and maintenance procedures for all vehicle components, from bumper to bumper. It includes specific notes, important points, service data, precautions, and other essential information required for performing accurate and safe repairs. This manual covers a wide range of topics including: * **Engine and Drivetrain:** Detailed instructions for engine repair, maintenance, and troubleshooting, including timing adjustments, valve train inspection, and fuel system diagnostics. * **Transmission and Differential:** Comprehensive coverage of transmission and differential repair, including gear replacement, clutch adjustments, and lubrication procedures. * **Suspension and Steering:** Step-by-step guides for suspension and steering component replacement, alignment procedures, and troubleshooting common issues. * **Brakes:** Detailed instructions for brake system inspection, maintenance, and repair, including brake pad replacement, caliper servicing, and hydraulic system troubleshooting. * **Electrical System:** Comprehensive coverage of electrical system diagnosis, repair, and maintenance, including wiring diagrams, component testing, and troubleshooting electrical faults. * **Body and Interior:** Detailed instructions for bodywork repairs, interior component replacement, and trim adjustments. The manual also includes valuable reference data, such as torque specifications, service tool requirements, and wear limits, making it an indispensable resource for any Porsche 928 GT owner or mechanic. The clear and concise language, comprehensive illustrations, and detailed procedures make this manual an essential tool for anyone seeking to maintain, repair, or understand the intricacies of the Porsche 928 GT.

The Porsche 928 GT, produced from 1990 to 1991, marked the pinnacle of the 928 model line, representing a blend of luxury, performance, and engineering excellence. This limited edition model, distinguished by its "GT" designation, boasted numerous enhancements over the standard 928 S4. Under the hood, the 928 GT featured a 5-liter, 32-valve, naturally aspirated V8 engine, producing an impressive 345 horsepower. The powerplant was coupled with a robust 5-speed automatic transmission, specifically tuned for smooth and responsive shifting. Visually, the 928 GT showcased a distinct aesthetic with its unique "GT" badging, a subtle yet impactful rear spoiler, and special 17-inch alloy wheels. The interior, crafted with premium materials, included sport seats with enhanced bolstering, leather trim, and a comprehensive instrumentation cluster. Beyond its mechanical and aesthetic refinements, the 928 GT incorporated crucial safety features, emphasizing the commitment to driver and passenger protection. These included an advanced anti-lock braking system (ABS) for optimal stopping power in challenging conditions, and a comprehensive airbag system for mitigating impact forces in the event of a collision. The 928 GT's overall design and engineering prowess solidified its position as a highly sought-after collector's car, capturing the essence of Porsche's commitment to performance and luxury. Its rarity, combined with its impressive power and sophisticated handling, make it a true testament to Porsche's legacy of automotive excellence.