Ill try and post a sound clip video of my truck idling at 750 rpm. Its the rebuilt one i spent a pile of money on. Its intermittent it comes and goes. Usually when truck warms up it goes away.Sometimes i dont hear it at all. i only hear it from front fan/grill area. when i climb ontop of engine I cant hear it tick like that......im puzzled.

 

I would remove serp belt from water pump, you can run engine for a few minutes at low engine rpm without doing any harm. If you can't hear the noise anymore then it's not internal engine related. Possible fan bearing or idler pulley bearing.

 

I just had an Engine swap in my 04 and it does the same thing! I turn the air select **** on "Face/Feet" off of Defrost-Defrost/Feet(so the A/C doesn't engage) and it goes away. Never did that before the swap...

 

here it is.hope it works..

http://www.youtube.com/watch?v=3aJIAkoKhnI

 

heres another...
http://www.youtube.com/watch?v=ZDq7kMMRx3A

 

Check your valve lash?

How many miles on the rebuild now?

 

Man! You just have all the luck, don't you? Maybe the valves need adjusting....

 

Sallyman your truck is possesed!!! Set that thing on fire and push it off the nearest cliff!!! You are having the worst luck. I feel bad for ya

 

That is a mechanical clicking, external to the engine.

First thing to check, is for black tape that wraps wiring, ticking on the ends of the fan blades, can be intermittent.

Next, watch for same kind of thing being blown around by air as it is moved by the fan.

Then, remove the fan belt, and spin the various pulleys. You might find that tick in the alternator, or the tensioner. A/C is possible, but not as likely.

The water pump will make a ticking noise like that, but normally with a bit deeper tone.

 

I agree with pind it does sound external, how new are the injectors could it be them or a loose fuel line clamp

 

x3, that sounds like a waterpump, or accessory pulley noise.

 

injectors are new also. its a rebuilt long block with new stock bosch injectors. everything on engine is new except for CP3, manifolds/turbo, and i think my flywheel and oil pan. all else is new.544 km on rebuid now. the thing is its gone after 5-10 seconds. thats not long enough for anything to warm up. i dont hear it ontop just infront of fan/shroud area

 

well then could it be a normal noise for that motor and your just a little nervous

 

Valve lash. be super cautious and set them. Some people dont get the engine in the right "spot" to adjust each valve. If that isn't it then I would look for an exhaust leak at the head.

 

i thought valve lash also but it goes away in 5 seconds....and only first start of day.