Question about 2001 Toyota Corolla

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Hi idle speed for a toyota Corolla 2001

After taking the car to the mechanic, the car's idle speed is too high. How do I lower it and do I need any special tools.

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  • 318 Answers

The idle is not adjustable. Look for a disconnected hose or something elde loose under the hood. an intake leak is posible.

Posted on Jun 07, 2009

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Posted on Jan 02, 2017

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3 Answers

Why does my car jerk when i change the transmission from park to drive


the idle RPM is too high
or its just too cold,
how cold is it outdoors?
idle speeds cold can be about 1500 RPM/ cold.
and will ****.
it jerks because you are taking 0 torque from engine
and the sending that to a stalled rear axle.
this cause a ****, that is why the park lock out requires Brakes on
so yo dont run over things.

Oct 07, 2013 | 2005 Toyota Corolla

1 Answer

Idling problem toyota altis


Either there is a vacuum leak causing the high idle, or
the IACV is bad or being controlled by the computer to make idle speed too high:

To change the IACV refer to the following:
Idle Speed Control (Idle Air Control) Valve Removal & Installation To Remove:
  1. Before servicing the vehicle, refer to the precautions in the beginning of this section.
  2. Remove the throttle body. Idle speed control valve toy_cor-04-18-1187.gif

  3. Remove the 3 mounting screws from the throttle body. Remove the idle speed control valve and gasket.
To Install:
  1. Using a new gasket install the idle speed control valve on the throttle body with the 3 mounting screws.
    • Tighten 33 inch lbs. (3.7 Nm).
  2. Install the throttle body.
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Jul 16, 2010 | 2004 Toyota Corolla

2 Answers

'03 Toyota Corolla 1,4 VVT-i 4ZZ engine idle rpm


Idle is factory set and cannot be adjusted, your best bet is checking for cracked hose pipework for air intake at idle,(not at problem under exceleration and driving) Any slight upset to the air /fuel ratio will be most prevelent at idle speeds.Check hoses where the meet metal flanges on manifold intakes and any sharp bends in ppipes.Good luck

Apr 05, 2010 | 2003 Toyota Corolla

2 Answers

Cold engine, idle rpm 1200 is this normal? 2002 Toyota Carollia


you need to replace the throttle position sensor on the intake.

Dec 16, 2009 | 2001 Toyota Corolla

1 Answer

Idle speed for my 2002 corolla 4zz-fe engine is low and unevan


Sounds like fuel filter to me. Change that and see.

Jun 30, 2009 | 2001 Toyota Corolla

1 Answer

1988 Toyota Corolla high idle with lights on


Because it's carbeurated they have an electric 'idle up' solinoid (or vacuume) to compensate for rev loss when load is put on the engine caused by the alternator working harder because your using power. It should have a small adjustment screw on the carbeurator to lower the revs. If you have it set too low it will shudder when in drive & foot on brake with headlights on. It should only pick up about 200rpm when lights are on. To find the screw, take the air filter off, run the engine & look for something moving when the lights are turned on & off. Somewhere near the moving bit you will find the adjustment screw. I hope. I'm not sure exactly where it is on that model.

Mar 20, 2009 | 1989 Toyota Corolla 2 Door

1 Answer

1985 Toyota Pickup -- Idles Too Fast


Sounds like both need the chocks ajusted or there sticking.

Feb 08, 2009 | 1990 Toyota Corolla

1 Answer

Idling to high


Hi jmach,

There is nothing wrong with your vehicle and no need to have anything repaired.... The high idle speed is controlled by the on board ECU...(the Electronic Control Unit).... When starting the vehicle from cold, the automatic enrichment of fuel increases the idle speed... Depending on the ambient air temperature.... the colder the weather, the longer the engine will take longer to return to normal idle speed. Thats how it's designed to operate.

Regards Johngee10

Jul 12, 2008 | 2004 Toyota Matrix

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