B16, B18, B20
By Adrian91
#224816 Since it started getting colder out my car started making this wierd humming pitched noise when running. loudest at like 2.5 to 3krpm. But still loud anyway, i got no power steering, i got an ac unit, no freon, but belt is around pump, then the alt, and timing belt. thats all i got. not sure what it could be. but sounds like coming from timing gears.
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By Classiccarsrule85
#224854 could be your water pump possibly ....could be a strain is now put on it to improperly mixed coolant??
By Adrian91
#224898 figured it out. It was the AC compressor. Just cut the belt, dont need it anyway, no freon in it and its winter. :thumb: