2001 GMC Sonoma Service and Repair Manual

This factory service and repair manual for the 2001 GMC Sonoma has four body configurations to cover — a three-door extended cab pickup, a four-door crew cab pickup, a two-door extended cab pickup and a two-door standard cab pickup — in SL, SLE and SLS trim. Two naturally aspirated overhead-valve engines are documented: a 2.2L inline-four of 134 cubic inches set up for flex-fuel, and a 4.3L V6 of 262 cubic inches on gasoline. Service content is organized by system for both.

Engines covered

• 2.2L inline-four (134 cu in) — OHV, naturally aspirated, flex-fuel
• 4.3L V6 (262 cu in) — OHV, naturally aspirated, gasoline

Body styles covered

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

Trims covered

• SL
• SLE
• SLS

Known issues on the 2001 Sonoma. One recall is on the federal record for this model year. It concerns seat belt buckle bases that were not heat treated as intended, so a buckle can fall short of the load it is required to carry and may not hold an occupant in a crash. Ninety owner complaints are logged, led by structure, then service brakes and the power train. Body and frame procedures, brake hydraulics and driveline diagnostics — with the torque values that go with them — are all set out in this manual.