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Random high idle

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Old 05-22-2015, 12:06 AM   #1
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Default Random high idle

I have a 2003 4.6 V8 and every so often after starting the truck it will sit at 2000 or more RPM. This happens in park and neutral. Even if I drive it or reverse it when I come to a stop and shift to park/neutral the RPM will climb from 1.5 to over 2.5. I've tried cleaning the throttle body in case it was just sticking but to no effect. Any advice?
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Old 05-30-2015, 10:09 PM   #2
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No good answer ever. Go remake the system, warn$$$$
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Old 07-12-2015, 10:03 AM   #3
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Throttle plate sensor, physical adjustment? Just taking a SWAG
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