Contour Enthusiasts Group Archives Forums General Troubleshooting What I believe to be valve noise.

It has 110k miles on it.

I do hear quiet noise while idling and cold but it doesn't sound to me like it's the same noise. Once the car is warm, the noise starts around 3.5k RPM, only under hard acceleration. I can push the pedal 1/4 or 1/2 the way to where I'm accelerating and it doesn't make the noise, but any little bit harder and you can hear it. VERY loud.