power surge

Discussion in '3.0 Engine' started by DPG3, May 24, 2014.

  1. DPG3

    DPG3 Member

    so recently my truck had a power surge, but only around 80mph+. never at 90 though. it has been very violent but then i changed the cam shaft sensor and it felt completely different. same problem though. it has rebuilt heads, all new gaskets and what not. it also has a new air filter, iac, tps, and all four 02 sensors along with two new cats. i have no idea what it is, im out of ideas. the fuel filter has about 30K miles on it, but i doubt thats the problem. fuel pump is good, i checked it when i was checking why i had a misfire. im starting to think its the comp. i have seen other forums with people complaining about the same thing. any one know why this is happening or even experienced it before?

    EDIT: i forgot to mention that after it happens once, the rest of the drive its fine. but if it sits for a while and i take it back out it will do it once. only at 80-85mph

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