cp3 tapping?

[bigboytoy426]

I just replaced the power steering pump so the truck sat since wednesday. Start it up and now i hear a tapping coming from the valley. Kind of hard to pin point it with the engine noise but pretty sure its coming from the valley. sounds almost like it you take wrench and tap it on some cast ( not a ping). FPR is bad in truck lopes from 4.5 to almsot 6.5 at times at idol. CP3 goin out the door or is this from the FPR? or something else?

 

[adeso]

My CP3 makes a tap sound. get one of these to track it down

http://shop.advanceautoparts.com/we...}&gclid=CLjUpMWgqrUCFcWPPAodyCsAuw#fragment-1

 

[bigboytoy426]

That's a good idea! I got a slight knock under acceleration and idle that I can hear in the cab. Think its a noisey injector ,only 5k on injectors might be able to pin point it with this..thanks