Vehicle
Chevrolet Avalanche
The pickup built on the Suburban rather than the Silverado, and its defining feature is the midgate — a folding bulkhead between cab and bed that lets the load space extend forward once the rear seats are down. That is a body assembly with its own latches, seals and, on later cars, its own wiring, and it accounts for a large share of what these come in for: leaks into the cabin and a bed that will not close. Everything mechanical is Suburban and Silverado material of the same years, including the cylinder deactivation on the later 5.3, which is the usual explanation for oil consumption and lifter noise. The Cadillac Escalade EXT is the same vehicle.
Generations
-
First generation 2001–2006
Suburban underpinnings with a folding midgate; the 8.1 V8 was offered on the 2500.
- Body styles
- Pickup
- Platform
- GM GMT800
- Engines
-
- 5.3 V8 — petrol · 213–220 kW (286–295 hp) · 434–454 Nm (320–335 lb-ft)
- 8.1 V8 — L18 · petrol · 239–254 kW (320–340 hp) · 597–617 Nm (440–455 lb-ft) · 2500 only
- Transmissions
- 4-speed 4L60-E automatic · 4-speed 4L85-E automatic
- Drivetrain
- Rear-wheel drive · Four-wheel drive
-
Second generation 2007–2013
GMT900; cylinder deactivation on the 5.3 is the usual oil-consumption explanation.
- Body styles
- Pickup
- Platform
- GM GMT900
- Engines
-
- 5.3 V8 — petrol · with cylinder deactivation
- 6.0 V8 — L76 · petrol · 273 kW (366 hp)
- Transmissions
- 4-speed automatic · 6-speed 6L80 automatic
- Drivetrain
- Rear-wheel drive · Four-wheel drive
Service information
Information, not instruction
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