Chevrolet Astro Engine Poor Mileage

I Have What Acts Like A Low Speed Miss,i Am Pretty Sure It Is Mechanical -u-joints,rear Axle,rear End,etc Runs Fine After 30 Mpg,or If I...

Van Is Rated 16mpg City 20mpg Highway Im Getting Average 12.5 Mpg Which Is 60%highway 40%city.i Also Have A 1999 Astro Same Van Same Engine...

A Service Center Recently Replaced The Intake Manifold. Since Then , Mileage Has Dropped Form 20 Mpg To 11.5 Mpg. The Service Center Has...

Yes I Have A Chevy Astro Van And It's Running Real Ruff On An Idle. And Feels Like It's Missing. When It's Idleing I Smells Like Gas Real...

What Will Cause Excessive Fuel Consumption From 15mpg To 7mpg.,no Gas Fumes Smell Or Noticable Gas Leaks,

I Own A 1999 Chevy Astro Van Awd V6 Vortec (72k). I Recently Had Repair Work To My Fuel Gauge Since It Was Not Registering How Much Fuel Was...