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Old 11-23-2004, 02:29 PM   #4
Dark_5.0
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Join Date: Apr 2001
Location: Staging lane
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Default Re: 5.0 idles up and down when warm

Quote:
Originally Posted by westridez
anyone know why it would be ideling up and down when its warm motor is pretty much stock 88 5.0 i deleted the polution pump cats tabs ect and i left the egr plugged in and plugged the vacuum line off and its non mass air
Its more than likely an o2 sensor IMO.
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