I've had this truck 5.7 hemi 2005 for 10 years it's been great till it dropped a valve. Ever since the rebuild its been giving me a problem with the crank shaft positioner code (p0335) I've replaced it twice now from the dealership and it's still going on. How ever the problem is not consistent, it starts to buck and kick and scream like a bipolar chick when you step on the gas, then the next day it will run great! Any ideas? Any experiences?