Luke Posted August 23, 2005 Report Share Posted August 23, 2005 What can cause a rought idle? My truck sits at about 500 rpm (more or less) and every few seconds it raises by about 50 rpm or so. Link to comment Share on other sites More sharing options...
tawss04 Posted August 23, 2005 Report Share Posted August 23, 2005 Depending on how many miles you have, you may have some carbon build up on the throttle plate. It's an easy fix, just go to the autoparts store, buy a can of throttle body cleaner NOT carburator cleaner. Remove the intake tube open the throttle plate spray the plate and bore, you can also use an old tooth brush to clean the carbon off if there is a good build up. Link to comment Share on other sites More sharing options...
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