2005 Toyota Corolla Idle

2005 TOYOTA COROLLA
108,000 MILES • 4 CYL • FWD • AUTOMATIC
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HMURPHY
  • MEMBER
  • 3 POSTS
My goes up and down when stopped at light. Not much but enough to say it idles rough.
Oct 19, 2009 at 5:45 AM
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MMPRINCE4000
  • ✓Experienced Mechanic
  • 8,548 POSTS
Have Idle Air control valve checked, it controls idle speed. It bypasses air to intake to regulate idle speed. They can sometimes stick.

Also inspect engine for possible vacuum leak.
Oct 20, 2009 at 2:37 AM
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