Rogi

Hello everyone. Today i heard noise under hood. Deaf. Comes from below. Does not squeal does not squeak increases with acceleration. A bit like a crooked wheel rubs at low speed The pump was replaced at 90,000 km by the first owner. now 165 000km no leaks low level etc. I have a stethoscope. And a little experience in car repair. What to check, how to determine where. remove S belt to check it is big problem? Bearings, generator, pump, tensioner. i recorded sound but i cant attach. Thanks