So im in the final stages of my build i just had the tranny rebuilt and i overhualed the motor this inculded new valve cover gaskets,new wires,plugs,cap/rotor,and new ignition coil. I also installed a k&n drop in highflow. Along with new injector seals new doorman plenum kit wich included new belly pan bolts new intake bolts and a set of intakerunner gaskets. I also did new radiator new thermostat and new waterpump,new timingchai new front seal and new timing cover gaskets.i have also done new 02sensor. So heres the proble..after all of that i still have a ticking noise starting at 1800 rpm and stoping at 2500.its def not knock or ping or lifter tick. What else could it be. Someone told me these motors are noisey (5.2/318) and its nothing. I have also heard its noisy injectors or a bad exhuast manifold if anyone could chime in that would be great.

 

Sorry for the spelling phone sucks. And just to note i have 114k. And i use synthetic.and the noise is just bearly audiable in the cab.

 

You should post in the 2nd gen section for better results.

 

Could be PCV valve, or even an exhaust leak.

 

Mine had a very distinct ticking sound I thought might be an exhaust leak until I changed the serpentine belt.

 

leaking exhaust manifolds will make a ticking noise that will come and go. cheap fix would be to replace the gaskets and hopfully that works most case are the manifold warp from all the heating up and contacting they due in most cases replacement is in order. would get some nice aftermarket headers as they will cost you the same. check all the manifold bolts, make sure they are tight/not broken, also just a thought i find a leaking manifold is most noticeable at idle, until its a full on leak. then it sounds like a monster truck, just my 2 cents.

 

I recently had a similar problem on mine after changing oil, real loud weird rattling. was the pcv, was easy to identify though. just my 2 Cents.