I have a 2001 silverado 4x4 with 5.3 liter auto.The problem is the idler pulley went out .Yes a ider pulley it uses a bolt to tighten the belt. Every place I look for parts it calls for a belt tensioner..T dont see bolt boses to mount it.
I just want to if any one seen this amd maybe why itt is differant and what part i need to order.

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AC no power to fuse
I have a 2007 chevy 3500 Silverado diesel work truck package, I have changed everything on ac, have had it working several times and now it won't come on unless we put a hot wire to the fuse, then compressor comes on and cools. But for some reason no power to the ac fuse. changed relay around still no power to ac fuse. New compressor, dryer, orifice, condenser, control panel, freon, etc. only thing not replaced was heater core. wiggled on all wires under hood, reset the fuse panel. I do have a glow plug for over 3 years that engine code shows. other than that, still trying to figure out, need help!