Re: '01 tahoe "speaker" on headliner ??
It is the temp sensor for the automatic climate control. If it is noisey it needs replaced. It has a small fan in it to sample the cabin air temp.
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04 Yukon XL 2500 w/ Quadrasteer
61 Chevy C60, 261 inline six
86 Chevy C20 2wd, Banks 6.2
05 GMC Sierra 2500hd Duramax
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