Quote:
Originally Posted by nlowell
I have a challenge for the group that is driving me nuts.
2013 Scion FRS with KW C30 SC and other accompanied upgrades. I developed a metal knocking noise that can be definitively heard with a stethoscope on the passenger head. It's erratic in rhythm.
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Dang shame you had all that work done and still have a unidentified sound ......
If the "metal knocking noise" is what I hear as a "ticking", I don't think it's related directly to the engine running (innards of the engine).
I'd guess it something else ..... like something lose ...... sort of flopping around ......
If it doesn't get any louder, I wouldn't worry about it.
humfrz