lweinlan Posted February 3, 2013 Share Posted February 3, 2013 I have a 2000 Honda Civic EX that I have not driven in 2 years. I started it, and the idle is not holding. It fluctuates between 1000 and 2000 rpm in cycles.. going up to 2000 rpm..going down to 1000 rpm..going up to 2000 rpm..and so on. This cycle does not stop, even after running the engine for 15 minutes (without driving). What could the issue be ? thank you. Note: I was trying to upload a movie showing the issue...but such upload does not seem to be possible? Link to comment Share on other sites More sharing options...
Humphries Posted February 4, 2013 Share Posted February 4, 2013 Check for vacuum leaks Link to comment Share on other sites More sharing options...
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