CHEVROLET ENGINE POOR MILEAGE

Truck Runs Good, Idles A Little Rough. I Recently Changed The Spark Plugs And Cables Which Helped A Bit. Fuel Pump And Filter Changed A...

Engine Performance Problem 2002 Chevy Camaro V8 Two Wheel Drive Manual 91k Miles I Have A Scanner With Live Data And The Fuel Trims Are...

I Have A 94 Chevy Surburban On Which I Changed The Motor. It Sucks Gas And Backfires While Running. Is It A Computer Problem?

4 Cyl. 5 Speed Autmatic Trans. Extended Cab. The Problem I Am Having Is. I Have Lost At Least 4 Mpgs. I Have Changed Plugs & Wires, Air...

98 Chevy Cavalier 130,000 Miles, Automatic, 2.2 Engine (i Believe). The Situation Is That My Mpg Have Dramatically Drop In The Period...

I've Been Trying To Fix This Problem For Over A Year. I've Changed The Plugs, Used Expensive Fuel System Cleaner, Kept The Oil...

I Filled My Car Up Today. When I Started It The Fuel Gauge Read Full And The Computer Said 345 Miles To Empty. I Drove About 15 Miles And...

I Just Bought A 99 Blazer 4.3 Vortec With 97000 Miles. It Is Only Getting 13 To 14 Mpg Babying It! My Friend Has An Identical Vehicle And...

My Cavalier Is A Z24 With The Original 3.1l V6. When Cool, The Engine Runs Fine For About 20 Miles And Then I Can Feel A Change. The Whole...

My New 2011 Chevrolet Malibu 4-cylinder Is Getting The Estimated Gas Mileage For A 6-cylinder. 17/26 Mpg. It Is Supposed To Be 22/33. Any...