Strange noise from timing belt area when engine cold. It starts around 1 min. https://www.youtube.com/watch?v=pf-oO-yCJtQ&t=1s
This was recorded when the ambient temp was around 65 F. When it's cold outside, the noise is really loud. I tried to pinpoint the noise with the statoscope, but I did not hear it close to any pulleys (including the crankshaft pulley). It almost sounds like coming from deep inside the engine. I will record it with temp around 45F in the future. Noise disappears after a few minutes, although it's replaced by another type of noise, the chirping type: check out this link: https://www.youtube.com/watch?v=hAznr3TObZo&t=4s
. I guess it's coming from the harmonic balancer/crankshaft pulley area. It's not as loud, just a rhythmic chirping sound. Again I tried to pinpoint it with a stethoscope, and I could not pinpoint it to any particular pulley. Based on the phone recording, I would guess it's a crankshaft pulley. What do you think? The timing belt was changed in 8/2019 around 140 000 miles. Now it's around 162 000. I have a code P0442 which is Evaporative Emission System Leak Detected (small leak) - it's been there for the last year or so... The noises are a recent thing...
So far car drives fine - I drove about 300 miles. It makes noises sometimes. No noise once the car is warm. We will see what the future will bring... I am about to do the entire suspension on it. If engine will fail, I will just replace it... Or maybe it will keep chugging along lol
Anyway, if anyone ever heard such a noise, please let me know...