6.0L surges at idle - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 04-14-2013, 03:47 PM Thread Starter
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6.0L surges at idle

I noticed that my recently bought 03 Excursion 6.0L sometimes surges at idle. I notice when at stop lights with the truck in D that I can hear the rpms go up a little then back down. If I am lightly holding the brakes the truck will move a little each time. It has fresh 10W-30 syn oil, new EGR and new filters (all factory). What can be some causes of this?

15 F250 XL 6.7L CC LB 4x4 (temp work truck)
03 Excursion Ltd 6.0L ARP studs/HG, turbo back exhaust, K&N CAI, EGR delete, 6.4L banjo bolts, blue spring, coolant filter, IDP tunes, SCT Livewire (regrettably sold)
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post #2 of 4 Old 04-14-2013, 06:25 PM
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Mine has been doing that for almost a year now and I still haven't figured it out someone told me it could be a hpop leak haven't found it yet.
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post #3 of 4 Old 04-15-2013, 11:15 AM
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And, of course, my (new to me) 03 F250 has just started surging up and down a bit at idle. Only thing done to it was my Tech found a hoseclamp on the turbo loose and tightened it.
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post #4 of 4 Old 04-15-2013, 11:28 AM
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I'd suspect the ICP sensor, especially if it's an 03 engine. The ICP sensors are known to leak on the 03's and contaminate the harness.

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