2005 accent idles too high

2005 HYUNDAI ACCENT
150,000 MILES • 4 CYL • FWD • MANUAL
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JOHNB
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  • 7 POSTS
OBD codes said IACV and throttle position sensor were bad. I replaced the idle air control valve and throttle position sensor and cleaned the throttle body but still idles at 2000 rpms. What else could be wrong?
May 1, 2011 at 4:19 PM
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FIXITMR
  • CAR REPAIR CONTRIBUTOR
  • 9,990 POSTS
look for vacuum leaks? make sure throttle plate is absolutely shut when gas pedal is relaxed. there is usually an type of adjust screw for this setting so its shut but dont jam/stick.
May 1, 2011 at 5:29 PM
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JOHNB
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  • 7 POSTS
The problem was a 3 inch vaccum line going from the back of the valve cover to the intake. Problem solved. Thank You!
May 1, 2011 at 7:03 PM
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