On a low RPM if i step into it, the car seems to make a clicking noise. Sound almost like detonation, but im pretty sure its not that. Does not seem to matter which RPM's im at. Could this be the VANOS unit taking a crap? Anythink helps thanks everyone.
clicking like what kinda clicking? (in relation to a common click you would hear everyday). to be honest my first guess would be probably the heatshield.
Sounds similar to detonation, but i run prem. gas, service records are always on time etc. I can hear it from both sides of the car also. It sounds like a click/rattle. But the odd part is that its not consistant. I could go 100 miles not hear it once or 100 miles hear it 10 times? Seems to be coming from top of motor, but thats hard to say?
Worn hydraulic tappets ?...if you car has them that is.
At low revs (idle), you can hear them quite clearly, at higher revs it's still there but clicking at higher frequencies so you probably can't hear it as well, especially when your engine is roaring down that highway !
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