well i dont trust hardly anyone but myself to do anything with the vehicle im driving, and the oil that was in my truck just looked crappy so i decided id change it. well i sat in front of the oil rack at autozone trying to decide what to get for it, and i finally decided on the Castrol semi synthetic stuff(10w-30). well i start it up this morning and theres this annoying clicking coming from my engine, i just ignore it but its only there when im on the accelerator and it clicks faster the higher i get in the rpm's. should i have chosen a different oil?

 

What type of oil filter? Have you checked the oil level? How many miles are on the truck?

 

70000 miles, k&n oil filter, oil level is right on the money, it just clicks

 

Are you sure your not hearing the injectors? Everyone complains about a tick and it is usually the injectors.

 

well im new to the 4.0, only had it since monday, still figuring it out if you know what mean, now i could tell ya a bunch on my 3.0!

 

Sounds like a dirty injector. Try running some Lucas injector cleaner through a couple tanks of gas.

 

oh yeah i forgot, i pulled the #5 plug just to see what condition theyre in and i put it back in last night too, could that have anything to do with it?

 

No, I don't think so....

Try running fuel system cleaner (I like seafoam myself) and change your fuel filter. Then report back....

 

Does it sound like clicking a pen? If so, it's the injectors. It's a 4.0 SOHC thing.

 

yah it does sound like a pen, ill seafoam the crap out of it and then change the plugs that way i dont ruin the new ones, thanks for the help guys!

 

Does it sound like this? That is injector noise.

 

comes more from the drivers side, ill go take a vid and see if it picks up the noise, i mean i can hear it very clearly in the cab when im driving

 

Exhaust manifold leak?

 

ill have to check that out too

 

cool thing is that if anything is wrong with it i get to take it back to the idiots at the chevy dealership and get it fixed for free! 30 day 3000 mile warranty! once again thanks for the help guys!