daveinnh
Gold Member
I have a 2002 Chevy 1/2 ton extended cab w/ the 5.3 engine. It's been fine, but I now have over 160k miles and need to replace before repair bills arrive. (advice by my local mechanic)
I see GM has something called "active fuel management" - a business contact bought a 2007 Avalanche (sp?) with the 5.3 and complained that it only operated in the 4-cyl mode when going downhill. He wishes for the 6.0.
Thoughts with mileage in mind?
I see GM has something called "active fuel management" - a business contact bought a 2007 Avalanche (sp?) with the 5.3 and complained that it only operated in the 4-cyl mode when going downhill. He wishes for the 6.0.
Thoughts with mileage in mind?