So I hooked up my 02 dmax/allie w/145,000mi to my 6000lb 5th this past weekend and noticed that when accelerating from stop there is a 1-2 second rattlesnake type rattle , then it's normal. Any thoughts? I don't think injectors have been done...possible this is the cause? Never heard this noise when running without the trailer so it's only under the extra load. Only had the truck a month. If the injectors need doing nows the time!

Any help from you guys is GREATLY appreciated.

Thanks,
Paul