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Jumping at 45 mph

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Old Apr 23, 2015 | 06:12 PM
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Jumping at 45 mph

Hello I am new to the site and want to say hello first of all. Now for the problem I am having. I have a 2001 F150 super crew 4x4 Lariat,the problem I am having is when the truck hits 45 mpg and shifts into higher gear I get a bad jumping or missing. I can put the overdrive in the off position and it gets a lot better but does not fix the problem completely. I was wondering if anyone else has heard of or experienced this. I have changed the fuel filter and this helped some. I have also checked spark plug coils and have even had codes run on it that just showed my ABS has a problem which was a broken sensor wire. Any help with this would be GREATLY appreciated.
 
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Old Apr 24, 2015 | 07:43 AM
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Common, low-grade misfire, usually due to a bad COP.

Many dozens of prior threads on the all-too-common issue.
 
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Old Apr 24, 2015 | 03:09 PM
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RE jumping at 45 mph

Thanks for the reply can you point me in the right direction as far as the other threads are concerned on this issue
 
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Old Apr 24, 2015 | 03:50 PM
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In the box above that says "Search", enter "Misfire".
 
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