fiber_tek Posted February 3, 2011 Share Posted February 3, 2011 The one that says to remove the bypass and pour a 16oz can of GM top end cleaner, or Delco cleaner while the car is running at 2000rpm? Just wondering if it works or is it a waste of time, just pull the IACV and clean it manually. Link to comment Share on other sites More sharing options...
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