2006 Isuzu i-350 Service and Repair Manual

Five cylinders and four-wheel drive set the 2006 Isuzu i-350 apart. It shares its platform with the Chevrolet Colorado, yet Isuzu sold it only as a crew-cab LS with 4WD, a four-speed automatic and the 3.5-liter DOHC inline-five rated at 220 horsepower. That engine was replaced by the 3.7-liter unit for 2007, so data for the 2006 model is distinct. This service and repair manual supplies the correct procedures, specifications, torque values, wiring diagrams, diagnostics and maintenance schedules for the 2006 truck, including transfer case and front axle work.

Engines covered

• 3.5L inline-five — DOHC, naturally aspirated, gasoline

Body styles covered

• 4-door crew cab pickup

Trims covered

• LS

Known issues on the 2006 i-350. Three recalls are on federal record. The brake lamp switch can fail so the brake lamps stay dark or stay lit and cruise control is lost, and a follow-up campaign addresses switch contamination in hot-climate states. A third recall concerns a top tether anchor for the front center seat that is not accessible on cabs with a 60/40 bench and no rear seat. NHTSA also logs four owner complaints, including exterior lighting and brakes. The manual's lighting circuits and switch procedures cover the repair.