Originally Posted by
OSU Football Fan
Any advice on my engine would be greatly appreciated.
I have an 01 Z28 A4 with a basically stock engine (Except for an SLP intake).
When the engine idles you can hear a clicking noise. The clicking sound is
quiter than the youtube post by the original poster. The guy I bought the
car from a year ago said it did that the entire time he owned it. (Approx.
20,000+ miles). The price was so cheap I bought it anyways.
The car clicks at idle, But at about 20 - 25 mph you can't here it anymore.
The clicking becomes lighter when the car is moved from park to drive.
(My mechanic told me since the clicking changed when you do that
that it wasn't a rod. Definatly a releif).
Anyways I don't know a whole lot about LS1 engines. I've always worked
on carburated 350 engines from my classic impala. If I were to guess I
would say my clicking sound is somewhere in my valvetrain. Rocker,
Pushrod, or Lifter. I'm hoping it's not the cam.
I would assume that it's not piston slap since my car uses very little oil.
(If I have piston slap wouldn't I be losing a lot of oil blowby due to
damaged piston rings?)
Any feedback would be appreciated.
This tread has convinced me to take my valve cover off to see what
I can see, So that's my next move.