Question about Toyota Land Cruiser

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Now idling at 1600 rpm and can not adjust more, what to do?

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Check the vacuum hoses, air leaks, idle stop screw and idle air control valve.

Posted on Dec 19, 2013

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Posted on Jan 02, 2017

  • 11 Answers

SOURCE: Idle shots up to about 1600 rpm when I start the

check your idle control valve located on the throttle body.

Posted on Nov 15, 2009

  • 44 Answers

SOURCE: high --1600 rpm ?? rpm

The normal idle speed is below 1,000 rpm...between 800 to 900 rpm. I suspect that the idle-air control motor has seized and can no longer automatically adjust the engine's idle speed. This part is also responsible for slightly increasing idle speed when the airconditioning is switched on to compensate for the added engine load. Some cars even have a "step-up" solenoid to increase idle.

When replacing the idle-air control motor, remember to clean the port that IAC motor goes into; there will be some carbon build-up that may prevent the part's cone-shaped valve from seating properly. A can of intake valve spray helped along with some Q-tips works well.



Hope this helped.

Have a great day !!!

Posted on Apr 07, 2011

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High --1600 rpm ?? rpm idle


The normal idle speed is below 1,000 rpm...between 800 to 900 rpm. I suspect that the idle-air control motor has seized and can no longer automatically adjust the engine's idle speed. This part is also responsible for slightly increasing idle speed when the airconditioning is switched on to compensate for the added engine load. Some cars even have a "step-up" solenoid to increase idle.

When replacing the idle-air control motor, remember to clean the port that IAC motor goes into; there will be some carbon build-up that may prevent the part's cone-shaped valve from seating properly. A can of intake valve spray helped along with some Q-tips works well.



Hope this helped.

Have a great day !!!

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