Vehicle

GMC Savana

The full-size van, a Chevrolet Express with a different badge and one of the most-converted vehicles on North American roads. A parasitic drain or supply-voltage fault is worth tracing into the body-builder wiring before the vehicle's own harness.

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GMC Savana 2500 cargo van, front view — Kevauto · CC BY-SA 4.0 (external)

Generations

First generation 1995–present

A Chevrolet Express with a different badge, produced almost unchanged for decades — and one of the most-converted vehicles on the road, so a drain belongs in the body-builder wiring first.
- 4L80-E / 4L85-E 4-speed automatic
Body styles

Van · Minibus · Chassis cab

Platform

GMT600
Engines
4.3 V6 — petrol

4.8 V8 — petrol

5.3 V8 — petrol

6.0 V8 — petrol

6.6 Duramax V8 — diesel

2.8 Duramax — diesel

5.0 — L30 · petrol · 8-cylinder, US market 1996-2002

5.7 — L31 · petrol · 8-cylinder, US market 1996-2002

7.4 V8 — L29 · petrol · 1996–2000

8.1 V8 — L18 · petrol · 2001–2002

6.5 V8 — L65 · diesel · 1996–2002

6.6 V8 — petrol · 2021–present
Transmissions

6-speed automatic · 8-speed automatic · 4-speed automatic 4L60-E · 4-speed automatic 4L80-E

Drivetrain

Rear-wheel drive · Four-wheel drive

Information, not instruction

CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.

Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.

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