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01 5.3L Vortec engine squeal



Hi guys I have a 01 Sierra 1500 4x4 with the 5.3 and it has developed a squeal. It doesn't matter if it is in 4x4 or 2wd, at a standstill or driving down the highway. The frequency does increase as the truck accelerates but I cant seem to pin down the exact location. I'll try posting an audio clip from above the fan cover, let me know if you guys have any ideas



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