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LinkBack | Thread Tools | Display Modes |
01-29-2011, 03:40 PM
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Odd Idle Fluctuation
Okay, so today when my truck was siting at idle after I cranked it before hauling my 11k pound horse trailer back home, the idle was not constant, and it kept fluctuating, and it kinda worried me. Made me think I have a fuel issue. The ECT was probably about 130º or so, and here is a video. It did this for about 5-6 minutes, and then I pulled out.
Can anyone tell me what the deal is? Last edited by SickStroke6.0; 01-29-2011 at 05:43 PM. 
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06-13-2011, 02:05 PM
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I know this is an old post but did you ever get it figured out?
My truck started pulling this same bull**** saturday morning at the boat launch 120 miles away from home, work or any tools/diagnostics. Now that I'm back home it hasn't missed a beat Diagnosed a bad ICP sensor today when i got to work. Sensor is not leaking or anything, but definitely on it's way out. Every once in a while you can see a little glitch in the voltage reading
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06-13-2011, 02:16 PM
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Never got it figured out. It's kinda weird that you say it happened at the boat launch, mine only wants to do it after hauling the horse trailer while idling...
 Can I check ICP voltage with my Insight CTS?
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06-13-2011, 02:18 PM
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Had the same issue, removed the ICP sensor and cleaned it (not much to clean?) re-installed it and has run fine for a month now
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06-13-2011, 02:21 PM
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Quote:
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06-13-2011, 02:38 PM
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Mine is too. Had to cut up a very pricey Snap On wrench to get it out .. about cried doing it!!
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06-13-2011, 02:45 PM
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Yea, I forgot they moved them.
I suppose everything has to come off to get at it. 
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06-13-2011, 03:05 PM
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oh that's right you have an 03. I would automatically just replace it and if it's leaking put a new pigtail on it. seems like the 03 sensor is much more prone to failure
you don't have to remove the turbo to get it but a few special tools help get it out. you do have to take the ficm out of the way though. snapon makes a 1 1/16" socket that grips the new sensor and makes installing it a breeze. also a 12pt crowsfoot the same size can help you get it out http://buy1.snapon.com/catalog/item....re&dir=catalog http://buy1.snapon.com/catalog/item....e=&dir=catalog
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