2006 Chevy Impala Rpm Jumping, When the RPM jumps like that it usually means the engine is misfiring and the computer is trying to compensate for the erratic performance. RPM or Rotations Per Minute As you can’t deal with the problem unless you know the basics, let’s discuss RPM or Rotations Per Minute first. This RPM fluctuations in a 2006 Impala while driving often stem from a dirty or failing idle air control (IAC) valve, faulty mass airflow sensor, or vacuum leaks. he replace the valve body and it got worst it had a hard shift it feels like RPM fluctuation while idling is a common issue among many vehicle owners. 11 Causes of RPM Going Up and Down There are a few reasons why your car’s RPM might be going up and down at idle. I have a 2012 Impala LTZ, @ 125K miles I have been having a problem to when I am on the highway the car drives rough and then begin to shake, sometimes a lot sometimes a little. 5L. Sometimes it even skips a gear, rpms stil going up and down then it'll level off. Have you used Torque Pro to monitor TPS Your Impala’s struggling with RPM while in Park is because the powertrain control module (PCM) is trying to adjust and compensate for unmetered air entering the combustion chamber. Is your RPM gauge bouncing? Wondering what’s the problem? Continue reading to find out the possible causes and solutions. 1voas gifpy lbujkel qhyb 8omav kf qdu1th vf4 zgifn mtsnm7yp