For starters I have a 01 hd F150 with 145000 miles on it....SO a little while ago my truck threw a code of P0320 after it started jerking real bad at around 65mph. I went and got it checked and it was a crankshaft sensor or wiring so I changed it and checked the wiring and connector. Reset the code and it went away, until I put about 13 hours on it and it came right back with the same symptoms. So it kicked the same code so I changed yet another sensor and checked the connectors yet again. Reset it and today it just kicked the same thing, this is driving me crazy any help is much needed! thanks

 

You need to check the wires to the sensor plug. I've seen em get brittle and break inside, but the insulation looks fine so it's hard to find. Just a possibility.

 

Thanks for the tip. it seems that everything was okay, and wouldnt you know it the code cleared itself so here's to hoping the the computer got itself together and it was just a bad glitch.