2020 Ram 1500 Classic Service and Repair Manual

This factory service and repair manual for the 2020 Ram 1500 Classic works on a pickup sold in three cab configurations: the 4-door crew cab, the 4-door extended cab and the 2-door standard cab. Two engines power it. The 3.6L V6 uses dual overhead camshafts and runs naturally aspirated on flex-fuel, while the 5.7L V8 keeps an overhead-valve layout and burns gasoline without forced induction. Six trims appear this year, running from Express and ST through Tradesman, SLT, Special Service and Warlock.

Engines covered

• 3.6L V6 (220 cu in) — DOHC, naturally aspirated, flex-fuel
• 5.7L V8 (345 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• 4-door crew cab pickup
• 4-door extended cab pickup
• 2-door standard cab pickup

Trims covered

• Express
• SLT
• Special Service
• ST
• Tradesman
• Warlock

Known issues on the 2020 1500 Classic. Two very different engines sit at the center of the 2020 1500 Classic: a twin-cam flex-fuel V6 and a pushrod gasoline V8, offered across three cab styles. The manual gives procedures and specifications for the engine, fuel system, ignition and cooling of both powerplants, along with torque values for the transmission, drivetrain, brakes, suspension and steering. Wiring diagrams and diagnostics support the electrical system and body across the crew, extended and standard cab pickups.