Stumble at Idle
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Junior User
Joined: Mar 2017
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Stumble at Idle
2005 F-250 6.0L with 67,000 miles. I have an intermittent stumble at idle that popped up a few weeks ago. It only does this at idle and it only happens maybe once a week. The RPMs used to surge a little bit at idle (would only happen once a month) until it got warmed up but now the RPMs are dropping like you can see in the video below. Where should I start? Is this classic stiction or is it a sensor (ICP)? I am looking into FICM repair because it looks weak but I think the FICM might not be related? Thank you!
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Cargo Master
Joined: Jun 2007
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From: Roseburg, OR
That doesnt look bad, I was going off the IPR % in the video.
Have you tried unplugging the ICP sensor and reseating the connection?
Have you tried unplugging the ICP sensor and reseating the connection?
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It acts up real infrequently. For instance, it did not do it on today’s morning commute to work and hasn’t done it all week. And then when I ran an errand for lunch is when it happened. Then no issues on the commute back home after work.
Cargo Master
Joined: Jun 2007
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From: Roseburg, OR
I have not tried that. Do I unplug while it is running? I think the 2005 is on the passenger side valve cover?
It acts up real infrequently. For instance, it did not do it on today’s morning commute to work and hasn’t done it all week. And then when I ran an errand for lunch is when it happened. Then no issues on the commute back home after work.
Posting Guru
Joined: Mar 2014
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From: Salt Lake City, utah
Does this stumble almost feel like the engines going to quit? Or are you watching the RPM gauge fluctuate a little up and down? When I had an injector going out it was like the engine was going to stop.