Noise of 987 cayman2.7 TIP

[htanino]

This is a 2007 987 2.7L Cayman TIP. It currently has 130,000 km on it.

It makes a strange noise when it warms up.
The symptoms appeared when driving slowly after 30 minutes on the highway. The noise came out when the vehicle was stopped and decreased when I moved it a little. The engine warning light is on. After a while, when I changed the parking position, the sound was a little better. When the vehicle was towed a few hours after the onset, there was no noise. There was no problem with the gears and the car moved normally. There did not seem to be much change in the sound when I stepped on the gas pedal. As shown in the video.

I towed it to a garage and the engineer at the garage said that the sound would not be heard until it warmed up for about 20 minutes. The water pump is 1 year old after replacement. The oil has 4000 km since it was changed. The engineer said it is not the belt or pulleys, but he did not know what is wrong.

I would be happy if someone could tell me what is wrong. Thank you in advance.

[JFP in PA]

Did the "engineer" read the code that caused the check engine light??? If he or she didn't, you need a new "engineer" that knows what they are doing.........................