2021 Ford F-150 Service and Repair Manual

This factory service and repair manual for the 2021 Ford F-150 has six engines to account for, including a 3.5L V6 full hybrid and a turbocharged 3.0L diesel V6. The rest are the turbocharged 3.5L and 2.7L V6s, a 5.0L V8 and a 3.3L V6. Ten trims are listed, Tremor among them, in crew cab, extended cab and standard cab bodies. Procedures, specifications, torque values, wiring diagrams and diagnostics are arranged by system, which is how a hybrid driveline and a naturally aspirated V6 share one book.

Engines covered

• 3.5L V6 full hybrid (213 cu in) — DOHC, turbocharged, gasoline
• 3.5L V6 (213 cu in) — DOHC, turbocharged, gasoline
• 3.0L V6 (183 cu in) — DOHC, turbocharged, diesel
• 5.0L V8 (307 cu in) — DOHC, naturally aspirated, flex-fuel or gasoline
• 2.7L V6 (164 cu in) — DOHC, turbocharged, gasoline
• 3.3L V6 (204 cu in) — DOHC, naturally aspirated, flex-fuel or gasoline

Body styles covered

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

Trims covered

• King Ranch
• Lariat
• Limited
• Platinum
• Police Responder
• Raptor
• SSV
• Tremor
• XL
• XLT

Known issues on the 2021 F-150. Owners have filed 997 complaints with NHTSA. The power train draws the most, with the electrical system and exterior lighting behind it. That combination points a diagnosis at the transmission and driveline first, then at the wiring and lighting circuits, all of which this manual documents with procedures, torque values, wiring diagrams and fault diagnostics, alongside the specifications for each of the six engines above.