Injector Knock?

[JJPage]

With my TST on any setting above 1/1 , EZ on #2 or #3 I am getting a fairly loud knocking or slapping sound from what sounds like the left side of the engine as I am driving. Mainly just as it shifts from 1st to 2nd or 2nd to 3rd as I am applying throttle. The higher the TST setting the more pronounced the knock, I can elevate the noise by throttle position, almost as if something is opening and closing. It used to do it only when not warmed up but now it seems to be almost constant.



I know it is very difficult to diagnose any problem without directly driving or experiencing the problem firsthand... but thought maybe someone else has had the same symptoms with the Edge/TST stack. Truck runs super, maybe nothing but any input helpful. (Sorry I put in wrong forum)

 

[tareynolds]

I have seen this in many trucks after they get some milage on them, to my knowlege their is nothing wrong with the vehicle. my parts managers truck started doing this about 3 months ago, their may possibly be a controller update coming for this condition, but I have not seen it yet.

 

[JJPage]

I only have 8200 miles on the truck, was worried it might be the pressure rail relief valve activating or like I said injector rattle. Thanks for input at least I know mine isn't the only one.