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  #11  
Old 12-02-2016, 06:40 PM
Hawaiian Diesel's Avatar
Hawaiian Diesel Hawaiian Diesel is offline
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I remember Fordnut mentioning that awhile ago. My #8 didn't look bad at all. I think it was the CPS.

Still have the stumble at 40 mph when going up a slight upgrade.
Changed CPS with my f350, changed my pigtails on ICP, IPR, and CPS.

Next step is rebuild IPR.

I have 7 AD injectors as backup. Good to know I can use them in #8 if needed.
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  #12  
Old 12-16-2016, 10:45 PM
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erbilabuc erbilabuc is offline
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I have this stumble at 40mph problem also. Afraid its a clogged or messed up injector but I just replaced all 8 in December of 2014 which was 20k miles ago so Im not sure. AE scan doesn't show any trouble codes for injectors.
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Old 01-15-2017, 02:17 PM
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erbilabuc erbilabuc is offline
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Quote:
Originally Posted by Hawaiian Diesel View Post
I remember Fordnut mentioning that awhile ago. My #8 didn't look bad at all. I think it was the CPS.

Still have the stumble at 40 mph when going up a slight upgrade.
Changed CPS with my f350, changed my pigtails on ICP, IPR, and CPS.

Next step is rebuild IPR.

I have 7 AD injectors as backup. Good to know I can use them in #8 if needed.
hey hey hey I have similar problem. Waited weeks and weeks due to troubleshooting. Thought it was my injectors also but no its my torque convertor. My torque convertor has a hard time locking up in overdrive so it shudders hard. Im going to try some 10$ additives but after that I will just have it replaced if it doesn't work. Best way to find out is to put the truck into the shudder so whatever conditions it takes do it and while its shuddering tap the break pedal. If it goes away with break pedal then its the torque convertor.
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