I recently purchased a 2003 S2000 with 89,000 miles. When starting the car it sounds like the valves are making noise but then stop after a few seconds of idling. I was wondering what causes that noise and how it can be fixed. I have recently just got an oil change and thought it would solve the problem but it hasn't.

I figured if the valves had to be adjusted that it would make noise all the time. I also thought that maybe its the fuel pump that when the car is sitting the oil settles then when started its not forcing enough oil through which is causing the noise. If anyone has any information please let me know thanks.

 

sounds like the Timing Chain Tensioner

 

https://www.s2ki.com/forums/index.php?showtopic=320897

 

How easy is it to adjust the tensioner or does it have to be replaced?

 

does anybody have step by step instructions on doing such a job?

 

If you search you will find. Check the How to's on the main under the hood page. It's very easy. It's located underneath the vtec solenoid.

 

https://www.s2ki.com/forums/index.ph...c=320897&st=25

its all here

 

That was the answer the cam chain tensioner. Thanks so much for your guys help, easy fix

 

if your running Mobil 1 I suggest you get rid of it ASAP with a good oil like Redline or Amsoil.
I had LOTS of valve train noise, even replaced the tensioner and it (the noises) came back after a month. Switched my oil to Redline and ALL of my funny noises have disappeared.

 

It's possible that's not the problem. If it quits within a few seconds after starting it's normal. Every car will make a little noise until there's enough oil present to dampen it. Properly adjusted valve lash will reduce this as well.
However, if the car makes a very noticable noise - as loud as a diesel, for much longer than you're suggesting - then it could be the TCT.