Chevrolet Engine Idle High

I Recently Had My Alternator Replaced. Since Then, When I Am Driving On The Highway, Specifically Doing Between 70-80 Mph, The Engine Revs...

2.2 4cyl Hi Folks, The Idle Has Been Acting Strange This Winter. If It Was Really Cold The Idle Would Stay High About 900-1000 Rpm's...

2002 Chevy Cavalier 4 Cyl Automatic 135,00 Miles My Car Is Running Slow But The Rpms Are High! The Car Just Does Not Want To Really Go...

I Have A 2002 Cavalier Z24, 5spd With 75,000 Miles. It Is Idleing Between 1500 And 2000 Rpm. Replaced Iac,map And Air Charge Temp Sensor...

2001 Z71 4wd Tahoe With 4l60e Transmission. A 40-50 Mph Engine Revs Up To 3500 Rpm's And Isn't Pulling. Give It Gas And Transmission...

I Start The Car And It Jumps Up To 2,000 Rpms, It Also Is Affecting It When It’s In Gear. I Can Put It Into Gear And Not Hit The Throttle...

Accelator Revs Up And Stays Above 2000 Rpms. This Is Making Shifting Very Difficult. Upon Trying To Slow Down After Turning The Cruse...

My Vehicle Is Accelerating On Its Own With Out Touching Gas Pedal And Its Idling High

At Times Has High Idle, When The Idle It High It Revs Up Pretty High Between Shifts, Otherwise Runs Fine, No Stalling Or Rough Idle, It Is...

Why Would It Run At A Very High Idle