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2005 Toyota Corolla

Tiny
COROLLA2005
  • MEMBER
  • 2005 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 62,000 MILES
Car idles smoothy. But if stopped or in "park", the idle will increase slightly from around 700 RPM to maybe 1000 RPM for a few seconds and go back down. AC not on. Is that normal.
Monday, February 2nd, 2009 AT 4:14 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,549 POSTS
Yes it is normal.

When coming to a stop there is a "load" on the engine (transmission).
When shifting into park the "load" is off, so the engine will idle a little higher until Idle Air Control valve moves to reset idle, a few seconds is normal.

Idle will increase when in defrost mode, AC mode, steering wheel is turned etc.
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Tuesday, February 3rd, 2009 AT 8:59 AM

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