| Hello, A year ago I have installed a HI pulley and the performance is excellent. A week after the install a loud belt squeak was heard and remedied by tigtening the belts. However, a ver minor squeak has returned (minor in that the volume is very low, but distinct). It only comes on when I have the AC and/or fan. It won't come on with the sidelights. But if I turn on the lights it will come on. Additionally, if the fans are on and I am stepping on the brake, the load causes the squeak. It isn't loud at all, but if I'm at a light and a car pulls up next to me, its frame will reflect the squeak back into my direction (only audible when my window is down however). However, if nothing is on and I'm driving in the day and have my feet on the brake at the light, no squeak is heard. I did a few youtube searches and searches on this and know that I have to tigthen the belt. But which one? Is it the one that runs the alternator? Thanks in advance folks--as you can see I'm not too mechanically inclined, but am confident I can resolve this. Jack
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