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Old 02-09-2005, 03:34 PM
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Join Date: Jul 2003
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Idle Control Valve

Come on guys this is an easy one for the experts. Should the idle control valve on a 126 close completely during operation? I know that during operation it gets a modulating voltage to keep it from sticking but when it does get the high voltage should it close completely? I'm trying to troubleshoot a high idle. On the bench with 12v the valve on the ICV moves up about 50% to restrict air intake but does not close entirely. Is this how it is supposed to work?

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Old 02-10-2005, 02:10 AM
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Idle Control Valve Question

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Old 02-10-2005, 08:59 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153

ON the M116/117 engine the valve SHOULD close completely with battery voltage applied.

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