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How To Adjust The Idle Set Screw?


lorenambrose

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Can someone tell me the correct way to adjust the idle set screw on a 2003 3.0l Flex Fuel engine?

Lets just say mine was "adjusted" incorrectly and I need to get it back to the proper factory setting.
 


rngr4x4beast

rngr4x4beast

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im preety sure there isnt a idle screw on a 03 your truck is FI the idle is electronically set and cant be changed
 

lorenambrose

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rngr4x4beast said:
im preety sure there isnt a idle screw on a 03 your truck is FI the idle is electronically set and cant be changed
Click to expand...

there is a screw that adjusts the closed position of the throttle plate. It is on the throttle cable bellcrank.
 

Big Jim M

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That is a stop.. It is there to keep the butterfly from slamming shut and damaging itself. That screw should be adjusted EXACTLY to where the butterfly is closed but not tearing itself up when the pedal is released quickly.
Big JIm
 
fourwheelford

fourwheelford

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Yeah big jim nailed it, it says right under the hood the idle speed is controlled electronically and cannot be adjusted.
 
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