2020 GMC Savana 3500 Service and Repair Manual
This factory service and repair manual for the 2020 GMC Savana 3500 applies to Base, LS and LT vans in six shapes: standard and extended three-door cargo vans, a four-door standard cargo van, standard and extended three-door passenger vans, and the two-door cutaway. Three engines are listed against them, the 4.3L overhead-valve V6 on flex fuel or gasoline, the 6.0L V8 available for gasoline, compressed natural gas or flex fuel, and the 2.8L turbocharged diesel four with twin overhead camshafts.
Engines covered
- 4.3L V6 (262 cu in) — OHV, naturally aspirated, flex-fuel or gasoline
- 6.0L V8 (364 cu in) — OHV, naturally aspirated, gasoline or CNG or flex-fuel
- 2.8L inline-four (171 cu in) — DOHC, turbocharged, diesel
Body styles covered
- 3-door extended cargo van
- 3-door standard cargo van
- 3-door extended passenger van
- 3-door standard passenger van
- 2-door cutaway van
- 4-door standard cargo van
Trims covered
- Base
- LS
- LT
Known issues on the 2020 Savana 3500. Neither a recall nor an owner complaint is recorded against this model year with NHTSA. The manual is therefore a working reference rather than a remedy, and it covers the ground a shop actually needs: procedures and specifications for each of the three engines, torque values for the fasteners in those procedures, wiring diagrams for the circuits running through six different body configurations, and diagnostics arranged to move from symptom to cause.
