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High idle after engine swap

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Old Oct 10, 2012 | 03:12 PM
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cardana24
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High idle after engine swap

Hey Guys,
I have an 01 Expedition with a 4.6L engine. I just finished an engine swap on the truck and now it is idling high, around 1500. Some times it will go out to about 1800 then come back down to 1500. Not sure what's causing this. The throttle cables are not too tight. I used carb cleaner to check for vacuum leaks last night and I could not find anything. Any suggestions? Is this a common problem.
 
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Old Oct 10, 2012 | 04:14 PM
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Is your IAC valve connector plugged in?
 
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Old Oct 10, 2012 | 05:10 PM
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cardana24
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Originally Posted by alloro
Is your IAC valve connector plugged in?
yes. To the best of my knowledge everything is plugged in and hooked up as it should be.
 
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