Hi, everyone, my r33 gts25 got the problem recently which the title described it, the noise is so loud, seems warning me to pay attention to it all the time, especially at low rpm.
When we look down at the front of the engine, there are two wheels connecting to the engine output wheel with belts, I guess the one at the top relates to the power steering pump and it's always working when the engine works, the wheel below it only works at a passage of time when the engine is working, sometimes it turns on for a while, then it stops (...I'm not sure whether this one is for the power steering pump... )... and I noticed the whining sound is just made by it when it spins, also it sounds like something's stucked when it stops...
I can see the wheel spins and stops while idling, but I don't know what's it for and whether there's a big problem with it, does anyone know about it and how can I solve the problem? Thanks!