2020 Chevrolet LCF 4500 Service and Repair Manual

This factory service and repair manual for the 2020 Chevrolet LCF 4500 has two gasoline V8s to account for rather than one. A 6.0L of 364 cubic inches, overhead valve and naturally aspirated, runs on gasoline, compressed natural gas or flex fuel; beside it sits a naturally aspirated 6.6L of 401 cubic inches on gasoline alone. Bodies number two, the low tilt straight truck and the four-door low crew cab straight truck, and trim is Base, so the engine sections are where a technician has to read most carefully.

Engines covered

• 6.0L V8 (364 cu in) — OHV, naturally aspirated, gasoline or CNG or flex-fuel
• 6.6L V8 (401 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

• Straight truck, low tilt
• 4-door straight truck, low crew cab

Trims covered

• Base

Known issues on the 2020 LCF 4500. The manual's harder job is the two engines. Each V8 gets its own mechanical procedures, its own fuel and cooling specifications and its own diagnostic material — one written for an engine that runs on gasoline, compressed natural gas or flex fuel, one for a gasoline engine alone. Driveline, chassis and cab electrical coverage is shared between them.