IDLE ERRATIC Questions

My Engine Runs Rough, Shakes Alot Unstable,rpm's Goes Up And Down On Idle,when A Spark Plug Is Unplugged You Can Berely Notice Somthing...

Failed The Smog Registered Gross Polluter Idle Keep Going Up And Down Some Leak Starts And Run Fine. Do I Need To Overhaul Or Replace Engine...

The Idle Goes Up And Down And The Car Jerks What Can The Problem Be

2001 Saturn Coupe 1.9lt Idle Is Up And Down What Can I Do

My A/c Only Works On High Not The Lower Levels, Plus It Causes My Idle To Go Up And Down, Making The Air Warmer. What Can Cuase This And To...

My Cars Idle Rolls Up And Down,i Check For Vacuum Leaks Hoses Are O.k. No Codes I Can Make Codes Pop In I Am Out Of Work And Need Help

There Is A Chlorox Smell From The Exhaust And It Has A Rough Idle (sort Of Jumping Up And Down Move). What Could Cause This Chlorox Smell?

Got A 1976 Lincoln Continental Town Coupe. Engine 460 Cid Rwd 104k Miles 1. After Engine Warmup, In Idle The Rpm Goes Up And Down...

I Have 1990 Honda Accord Ex (inspired Edition). When Car Is In Park Idle Goes Up And Down? Is O2 Sensor The Problem Nad How Do I Fix It?

While Sitting At Idle Engine Races Up And Down And Even While Driving.