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Old 02-26-2009, 07:23 PM
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Lunging

Have any of you had a problem with your truck lunging. I feel it sometimes when the truck is idling, and when I am going down the road. The RPMs shoot up 600-700 RPM Its acts like someone just stabbed the throttle real quick. Except its instantaneously, where as when you do it with you foot it takes a second for the engine to rev. I was out of the truck toady and it did it twice. Anybody got a clue or even a direction to look into?

Its the truck in my sig, & i have 103k mi on it if it makes a difference.

Last edited by GS247; 03-02-2009 at 06:12 AM.
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Old 03-02-2009, 06:13 AM
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would bad injectors do this?
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Old 03-02-2009, 06:44 AM
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have you pulled codes,that is where you should start.fairly cheap or free if a buddy has one.
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Old 03-02-2009, 06:45 AM
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also do a injector buzz and cont.balance test also.
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Old 03-02-2009, 11:17 AM
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My 07 will do it when it is cold, but that is the only time.
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Old 03-03-2009, 06:59 AM
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Quote:
Originally Posted by badazzstroker View Post
also do a injector buzz and cont.balance test also.
I am not familiar with this test. Can you please explain.



No codes stored in the ECM



I was told yesterday that it could also be my oil pressure regulator or injectors. I removed both the Edge unit and my SCT program and it still lunges
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Old 03-04-2009, 01:31 PM
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Interested to see what you find out, the wife's 05 F350 6.0 has the same issue, 80k on the clock. Exact description I would have used. At a red light it gets kinda scary . We took it to the dealer and they replaced the IDM, but it had no effect. Need to return it again, but we were hoping to give them a little more direction of where to get started.
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Old 03-05-2009, 07:06 AM
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does your wife's F350 have any mods done to it?

The reason I ask is I completely took out my edge unit and the problem has almost completely gone away. I am going to reinstall it in a few days to see if the problem comes back. I have heard from a local diesel performance shop that this has happened before with the edge unit to another one of has customers. It has also caused the battery’s to go dead overnight on his customers rig, and I woke up last weak with two dead battery’s. I had everything charged and tested with the results of nothing wrong with my truck.
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Old 03-05-2009, 07:17 AM
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I dont mean to be offensive at all by this but I know a lot of issues that have been because EDGE Banks and Bullydog. I consider then cheaper tuners that dont get the most out of the car, Banks especially. I went through 3 brand new Banks chips in 2.5 years and I had my sniper tuning on my other truck for over 2 years now no issues. My buddy actually ran the EDGE on his chevy 2500 and blew all of his piston rings and he said he never had high EGTs. I told him well its a Chevy what do you expect hahaha. But in all honestly I think it was the Edge
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Old 03-05-2009, 07:46 AM
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What you are experiencing is a bad ICP sensor. If you can check the codes you should come up with a P2285. I know because mine has been acting up for a couple of days and finally threw the code yesterday. Same simptoms - I could be sitting at a light and the engine will surge and lurge the truck so much that you have to look and see if you got rear ended. I'm stilltrying to find an easy method of replacing the sensor as it is at the very back of the engine between the turbo uppipes. Does anyone have a suggestion for changing it from the top without removing the turbo? I have found some info on replacing it from the bottom but it sounds like it will still be a pain in the butt.
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