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High idle at startup

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Old 08-11-2009, 09:59 PM
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Default High idle at startup
In the mornings it(4.7L, 08)zooms to 1500 for about 30 seconds. Normal?
 
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Old 08-11-2009, 11:08 PM
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Never looked at what rpm exactly but it does idle higher for a bit when the engine is cold.
 
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Old 08-11-2009, 11:09 PM
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I dont think mine goes quite that high but it def is elevated for the first 30 secs, then it slowly drops down to idle
 
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Old 08-12-2009, 01:22 AM
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On initial start up mine goes close to 1500 but quickly drops to normal range. Sometimes you can hear the rough idle but not always. Need to clean the TB
 
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Old 08-12-2009, 09:48 AM
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my initial start up is about 1200 then it goes to 750 which is normal idle
 
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Old 08-12-2009, 10:14 AM
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Originally Posted by superdak05
my initial start up is about 1200 then it goes to 750 which is normal idle
I checked this morning, this is where mine revs up to other then it idles at 700
 
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