Friday, May 4, 2012

2004 Toyota Highlander: Runs Fine But Idle Is Low?

First thing to be checked is,is there Check engine light Coming ON dash or Not.If es then get the Error codes scanned,which are stored in Engine computer module.

BUT,If the engine is running normal with normal performance and acceleration and your only problem at this point is a lack of idle or extremely low idle you will need to remove the intake boot going to the throttle body and clean the carbon and varnish from the throttle plate and bore. Once this is cleaned remove the negative battery cable to reset the system. Start the vehicle and your idle should straighten out.
But The Problem is not gone,then get the Engine Module scanned and inspect the IAC valve and Throttle body.

This details will help.

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