Does 2007 Avalanche have AFM?

The Avalanche comes with a choice of three engines. The base engine is a 5.3-liter V8 with Active Fuel Management. Optional on LT3 and LTZ models is a more powerful 6.0-liter with Active Fuel Management and Variable Valve Timing.

Is the Ecotec 5.3 flex fuel?

This allows the 5.3L EcoTec3 V8 to achieve a Best in Class fuel efficiency rating of 16 MPG driving in the city and 23 MPG on the highway. This is done while generating 355 horsepower and 383 pound-feet of torque. And you can use E85 flex-fuel in this engine, too.

What year did Chevy introduce AFM?

“Chevrolet first introduced its Active Fuel Management cylinder deactivation system in 2005, and Dynamic Fuel Management is a natural progression of the technology,” said Jordan Lee, Small Block chief engineer.

How reliable is the 5.3 Ecotec?

Part of the reliability of this engine stems from its fairly impressive lifespan. A Chevy 5.3 L engine can be expected to last somewhere between 200,000 to 300,000 miles. Some drivers have had trucks with this engine for close to twenty years and still have experienced no engine issues whatsoever.

How many miles can a 5.3 Ecotec go?

On the 5.3L EcoTec3, you will probably start to notice some carbon buildup effects around the 70,000-80,000 mile range.

Is the Active Fuel Management on a 2007 Avalanche?

I have a 2007 Avalanche that I purchased new. It now has 209,000 miles on it. I’m sure that some of you know that the Active Fuel Management can be a real problem on these engines. I’m a dedicated oil changer on my engines and I never had a problem until the truck reached 200,000 miles.

What kind of gas mileage does a Chevy Avalanche get?

2007 Chevy Avalanche – Poor Gas Mileage Power/Fuel gasoline, chevrolet, avalanche, fuel-economy KY_Avalanche July 4, 2016, 9:08pm #1 I’ve got a 2007 Avalnche with 5.3 V8 flexfuel, and 4.3 gears. I’ve heard of many people with this truck that get 20-22 MPG on the highway.

How to remove AFM DoD from GM 5.3L engines?

This kit includes everything needed to delete AFM/DOD (Active Fuel Management) from GM 5.3L engines. With this kit, on 2010-later engines, you will retain VVT (Variable Valve Timing), and reuse the timing chain set. Message us with your VIN number for fitment.

What kind of trans shift does Avalanche 5.3 have?

Replaced engine at 74000 mi due to major engine tap at start up. Under ext warranty. Rebuilt gm installed. Immediately put range device in. 08 ltz avalanche 5.3. Better trans shift & hopefully no more tick.

Are there any AFM problems with the GM 5.3L V8?

Now, to be fair: Not every GM 5.3L V8 has problems with AFM. Many consumers report a trouble-free ownership experience. Still, AFM problems exist. The AFM excessive oil consumption problem usually crops up on vehicles that go on long highway drives. These kinds of trips don’t put much stress on the engine, so the AFM system deactivates pistons.

How much oil does a GM Avalanche use?

When the computer calls for 4 of the cylinders to shut down the special lifters deactivate the valves for those cylinders. All done hydraulically via solenoid valves in the valley cover. Some folks were using quarts of oil in under 1,000 miles.

What kind of engine does a GM 5.3 liter have?

GM 5.3L V8 Vortec LC9 Engine Specs Type: 5.3L Gen IV V8 Small Block Valve lifters: Hydraulic roller Firing order: 1 – 8 – 7 – 2 – 6 – 5 – 4 – 3 Bore x Stroke: 96.01 x 92mm Fuel system: Sequential fuel injection