2018 Chevrolet Silverado 3500 HD Service and Repair Manual
2018 Chevrolet Silverado 3500 HD service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and reference wiring diagrams and system sections quickly while you work.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Wiring diagrams and electrical sections
- Powertrain, brakes, steering, suspension, HVAC and more
Trims covered
- WT Crew Cab Pickup 4-Door
- LT Standard Cab Pickup 2-Door
- LT Crew Cab Pickup 4-Door
- WT Extended Cab Pickup 4-Door
- LTZ Extended Cab Pickup 4-Door
- LTZ Crew Cab Pickup 4-Door
- WT Cab & Chassis 4-Door
- LT Extended Cab Pickup 4-Door
- WT Cab & Chassis 2-Door
- High Country Crew Cab Pickup 4-Door
- LT Cab & Chassis 2-Door
- LT Cab & Chassis 4-Door
- WT Standard Cab Pickup 2-Door
Engines covered
- 6.6L 6599CC 403Cu. In. V8 DIESEL OHV Turbocharged
- 6.0L 5967CC 364Cu. In. V8 GAS OHV Naturally Aspirated
- 6.0L 5967CC 364Cu. In. V8 FLEX OHV Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 4500, 5500 and 6500 vehicles and 2017-2019 Chevrolet Silverado 2500 and 3500 vehicles and GMC Sierra 2500 and
A short-circuit may damage the engine components and increase the risk of fire.
GM will contact owners, dealers will replace the engine block heater, free of charge. Add
General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 vehicles equipped with a dual fuel tank option. The rear fuel tan
An engine stall increases the risk of a crash.
Dealers will inspect the fuel tank and fuel pump module, replacing them as necessary. Dea
General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500 and 2017-2019 GMC Sierra 2500 and 3500 vehicles equipped with a Duramax diesel 6.6 liter engi
An electrical short-circuit can increase the risk of a fire.
Dealers will replace engine block heaters and heater cords. Vehicles that have this featur
Recall N192265660 repair failed. Dealer stated that GM refused to participate in the repair. Smoke and smell of burning electrical followed by the rear window exploding. Dealer quo
Iâve heard all the horror stories about faulty electrical issues. Iâm chasing an issue now on my 2018 with ONLY 87,000 miles after spending a bunch of money on batteries hub as
Iâve heard all the horror stories about faulty electrical issues. Iâm chasing an issue now on my 2018 with ONLY 87,000 miles after spending a bunch of money on batteries hub as
Iâve heard all the horror stories about faulty electrical issues. Iâm chasing an issue now on my 2018 with ONLY 87,000 miles after spending a bunch of money on batteries hub as
Showing the 4 most serious of 27 complaints filed with NHTSA.
