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112 Posts
Discussion Starter #1
I have an '04 6.0, a couple months ago it started to surge slightly at idle, it's getting worse, to the point it will surge bad enough to blow black smoke and sometimes the motor dies, could it be the ice sensor?
 

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1,213 Posts
Check for codes. Then unplug the ICP sensor and run that way for awhile - see if the surging goes away. You can do the same thing w/ the EBP sensor.
 

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Discussion Starter #3
There are no codes, I will unplug and see what it does, thanks
 

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Old Fart
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889 Posts
What weight oil are you running? I was running 15W 40 and I had the surging. I switched to 5W 40 and it went away almost instantly.
 

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Discussion Starter #5
I'm running 15-40 but with arch oil additive
 
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