I have a '95 truck with a VG30E six cylinder. After every start, the valves(?) start to make a ticking sound whenever I put a load on the engine. You can not hear it while idling, it must be loaded. After a few minutes of driving or warming up it seems to go away until it is restarted again. It seems like something is not getting lubrication initially. It is coming from the passenger's side of the engine block. I'm not sure if that is cylinders 1,3, & 5 or 2,4, & 6. I don't have my manual with me. I have 65K miles on my truck and it just started about 25 miles ago. Any ideas or information would be appreciated.