I know the Nissan V6 engines sound weird but I was just wondering if the sound I am experiencing is normal. I had this sound since I got this truck and one friend of mine who owns a 2dr Explorer said it may be a normal sound for this engine. Anyway, it sounds like a bunch of sparks going off and probably comes from the valves. The sound is continuous and not random. It only occurs under load and not at idle. By load I mean over 2000 rpm in Drive in the higher gears when I press the gas down a bit. However, if the load is at its peak then the spark sound also gets some occasional click to it. So I just wanted to know if this is a normal thing for these trucks.
I tried getting rid of it by replacing the studs with 300zx turbo studs, replacing the manifold with headers, using 5000 mile oil, etc. However its still there and neither of these things helped so far. The headers made the sound slightly louder too.
If you want me to post a video, I can do that.