How do you remove an alternator on a 1999 gmc truck?
First thing to do is remove the negative battery connector so you won’t be able to short anything out by accident. Then remove the nut under the rubber boot at the upper back top of alternator (it is battery voltage wire and goes over to solenoid on starter motor). Then unplug the connector that is plugged into the top of the alternator. The alternator is usually the most upper mounted accessory that is bolted to a large aluminum accessory cradle attached to the engine block. Since you must access the serpentine belt tensioner, I would suggest removing the upper plastic pad that covers over the upper radiator support and fan shroud. First, remove the air inlet duct from the intake manifold and air snorkel tube. The trim pad over the radiator is held on merely with “push-pin” plastic trim plugs or fasteners to be technical. There is a plastic fastener or two you must remove to unfasten upper radiator hose. Next, you will or may want to remove the upper fan shroud. It is held in by two b
