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Old Sep 2, 2012 | 05:46 PM
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Surging at idle
What causes a 7.3 to surge while idling?
 
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Old Sep 2, 2012 | 11:44 PM
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What do you mean surge? It could be alot of things. Clean your throttle pedal sensor with some contact cleaner and see whats happens.

Chet
 
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Old Sep 2, 2012 | 11:50 PM
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Does it do it while it is cold, but go away when it warms up a little? If so, be sure you have the correct weight of oil in it. Mine did and I cured it by switching over to 5W40 Rotella T6 Full synthetic. Now it idles smoothly cold or warm.
 
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Old Sep 3, 2012 | 07:28 AM
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I cleaned the throttle pedal sensor last week but didn't fix the surging or vibration. It does it if the engine is hot or cold. I'm Currently running delo.
 
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Old Sep 3, 2012 | 09:32 AM
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Check your ICP sensor....

It's on the front of driver side head and has a connector going to it. Inspect the plug, if there is oil on it, replace the sensor. Leave it unplugged and start the truck. If the surging stops, then for sure replace the sensor.
 
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Old Sep 3, 2012 | 09:34 AM
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I'll try that thank you
 
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Old Oct 12, 2012 | 09:50 PM
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Hey Cory, did you figure out your issue? I have the same situation where mine slightly surges @ idle, no matter warm or cold.
 
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Old Oct 12, 2012 | 10:18 PM
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Unplug the ICP and see if it stops
 
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Old Oct 13, 2012 | 07:25 AM
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Haven't been able to check, got injured at work and had my arm in a sling ever since
 
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Old Oct 13, 2012 | 08:55 AM
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Had a similar issue on motorbug. Turned out to be my ebpv fluttering. Disconnected and the surging stopped.
 
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