2001 Saturn SC1 High RPM After Cleaning Throttle.

  • 2001 SATURN SC1
  • 95,812 MILES
2001 Saturn SC1 High RPM After Cleaning Throttle Body

We have a 2001 Saturn SC1 with about 95,812 miles. The throttle body cleaning procedure has just been completed. However, after we started the engine we had to turn it off immediately because the engine's revolutions went to about 4,000 RPM. We got the same result everytime we started the engine. We understand that after the throttle body is cleaned it is normal for the engine's revolutions to be high until the ECM makes the necessary adjustments. Please note that when the throttle body was removed the inside opening of the connection of the intake manifold where the throttle body connects was also cleaned by removing the carbon build-up deposits (oil, soot) using a rag soaked with gasoline. Additionaly, using a carb-cleaner called CRC's Throttle Body Kleen the throttle body's bore, the throttle plate (especially the edges) and the AIS or air idle control valve's bypass passage were thoroughly cleaned to the point that there are no visible carbon build-up deposits anymore. Please, we would like someone to tell us what to do at this point before we start the engine again. The engine's RPM are simply too high to wait until the computer makes the adjustment. Thank you for your help.

Tuesday, October 23rd, 2012 AT 4:17 PM

1 Reply

The car has a rev limter and the engine will not over rev heres what I want you to do start the engine let it run for atleast a min and see what happens. Let me know if it idles back down you may have the idle ar control valve stuck open even.
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Tuesday, October 23rd, 2012 AT 5:04 PM

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