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Today I was going down the interstate with the cruise control on. No load. Everytime I would go down a hill the truck would start hesitating like a gas burner that is missing. When I would level out or go up a hill everything was normal. It also did this the last time I drove with the cruise on. I have a Predator v2.02 set at 65 hp, egr diagnostics off with the egr unplugged, and a K&N filter. Everything elser is stock. As far as I know, I have the lastest updates.

Any ideas:confused: :help2: .

I guess I should set it back to factory tune and see if it makes a difference.
 

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I guess I should set it back to factory tune and see if it makes a difference.
try that first and let us know, at least rule out the programmer.
 

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i had a problem with hesitation and white smoke then would clear up
at 75mph or higher if i dropped down to 72mph or below nothing.took to dealer nothing.figured out to be bad fuel also fuel level was close to empty every time this has happened about 3-4 times differant tanks
of fuel within 34000miles of driving alway same driving i just chaulked
it up to bad fuel when i filled back up no problem maybe when going down
hill made the speed just that extra amount to make it do it:confused:
 
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