2003 Toyota Corolla Surge in RPM when starting the car

Tiny
PREMRAJRAJA
  • MEMBER
  • 2003 TOYOTA COROLLA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 50,300 MILES
My Corolla is having some surge while I start my car. The engine rpm starts around 1700 and it goes till 2000. It comes back to the normal idle level (1000-1200) in 5-6min. Is this a sign of some problem. Please advice me.
Friday, February 20th, 2009 AT 7:15 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
Clean (or have cleaned) your IAC (Idle Air Control) valve and check for any vacuum leaks.

Normal idle on the 1ZZFE engine (no loads), is >1000rpm, usually around 950 or so.
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Saturday, February 21st, 2009 AT 8:32 AM

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