Chevrolet Engine Poor Mileage

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

When I Connect Obd2 Scanner To Connecter It Dosent Automaticly Come On , I Checked The Connector And Have No Power To The One Terminal That...

Last Year I Replaced Inigion Cap Rotor New Cables Coil Plugs Gas Filter..this Year I Replaced 4 O2 Sensors....in The Last 2 Months I Noticed...

The Engine Temperature Will Not Maintain At 195 Degrees F. It Will Reach That Temp, Very Briefly, But Then Falls To About 155 F And...

I Replaced The Thermostat, Radiator And Radiator Cap And The Engine Temp Will Not Stay At Or Near 195 Degrees. It Drops To 150 Degrees Once...

My 1997 Chevy Lumina Has Lost 6 Mpg Putting Me Around 13 Mpg City. I Was Wondering What Would Be Causing This Or If There Are Any Tips On...

My Fwd Silverado With The 350 Engine Gets Twelve Mpg. Even With Freeway Driving. Is This The Norm? What Should I Do, To Get Better Mpg. I

Smell Gas At Tailpipe, Replaced Iat, Maf, Map, Cleaned Oxygen Sensors,were Black With Carbon Also, Replaced Spark Plugs, Wires, Rotor...

This Will Be A Long Background Because I Have Done A Lot Of Replacing To Fix This Problem. When My Car Hit 200k, I Did A Lot Of Preventive...

I Think My Car Has A High Fuel Consumption And I Want To Kmow What Are The Possible Reasons For That And Any Suggested Solutions For This...