6.4 jumping forward - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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  #1  
Old 10-12-2012, 02:21 PM
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6.4 jumping forward

Buddy of mine had some issues earlier today. His truck idled fine nbut when put into drive it would lunge forward and felt like a standard when you let the clutch out with no gas.
Its straight piped with spartan tunes and a cold air intake

thanks
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Old 10-13-2012, 05:10 AM
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Funny you mention that mine has done that three times in the life of the truck the third time being yesterday. It idles fine in park. When I got back in the truck and put it in drive with my foot on the brake it idles up to about 1200 for a couple seconds I give the gas a quick shot and it idles down. Any thoughts?
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Old 10-14-2012, 07:16 PM
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Mine does the same thing. I can make it do it if i want its something to do with pedal position i think. Does it to me daily
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Old 10-15-2012, 03:01 AM
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Mine has done this 3-4 times over the life of the truck as well. It doesnt do it often enough though for me to figure out what is causing it.
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  #5  
Old 10-16-2012, 06:46 PM
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His transmission was blown. time for a sun coast
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Old 10-17-2012, 03:26 AM
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I love my suncoast. Now the tranny actually shifts like it should have from the factory. Much tighter shifting and actually holds.
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6.4, jumping, lunging forward, problem, spartan

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