Keep your heavy-duty Silverado running strong with the Haynes Repair Manual for Chevrolet Silverado 2500/3500 models (2020–2024). This manual includes full in-book procedures for the 6.6L L5P Duramax diesel engine and the 6.6L L8T V8 gasoline engine.

Whether you're replacing brake pads, diagnosing a hard start, or working on the transmission or drivetrain, this guide provides trusted, hands-on instruction backed by step-by-step procedures and hundreds of photos. Scan the included QR code for instant access to detailed wiring diagrams, guided diagnostics, and digital repair content—perfect for modern garages.

Haynes is the world's leading DIY repair guide brand, helping millions of vehicle owners save time, money, and frustration with clear, accurate repair info you can count on.

Table of Contents
Safety First!
Vehicle identification numbers
Jacking and lifting
Buying parts
Fluid level checks (every 250 miles or weekly)
Tire and tire pressure checks (every 250 miles or weekly)
Lubricants, fluids and tire pressures
Booster battery (jump) starting
Key fob battery replacement
Troubleshooting
Acronyms
Fraction/decimal/millimeter equivalents
Chapter 1 – Routine maintenance and servicing
Chapter 2 – Engine repair procedures
Chapter 3 – Cooling, heating and air conditioning systems
Chapter 4A – Fuel and exhaust systems
Chapter 4B – Emission control systems
Chapter 5A – Starting and charging
Chapter 5B – Pre-heating system
Chapter 6 – Automatic transmission
Chapter 7 – Transfer case
Chapter 8 – Driveshafts, halfshafts and axles
Chapter 9 – Braking system
Chapter 10 – Suspension and steering
Chapter 11 – Bodywork and fittings
Chapter 12 – Body electrical system
Chapter 13 – Wiring diagrams
Index