I bought another one!!!

[TJ's Chevy]

Originally Posted by Ta2Don

Glad it was apparently nothing major

Yep...so far so good. lol

Originally Posted by 66Submarine

Not to rain on your parade or anything, but AFAIK all of the GMC V6's used solid lifters (IMO it didn't sound like a collapsed hydraulic lifter in the clip anyway). I would look into it before I started buying parts and replacing stuff.

Well I'm replacing the head gaskets because it does have a leaky one. And yes these are solid lifter cams which is why they suggested it being a sticky lifter, or some piece of carbon stuck between the valve.

Originally Posted by awbrown

It would be easy to drop something into the cylinder , and that is the noise it would make .. i always blow all the garbage off the area of the plugs before attempting to replace them if it did stop making the noise , then it went through the engine , or it just finally clearanced itself ...

Yeah its a possibility for sure. I'll blow air around the plugs again to make sure all the debris is gone.