Replace water pump
SOURCE: 1993 chevy van g20 water pump replacement
you will need some fairly long wrenchs 15mm-16mm to get leverage on the spring loaded serp tesiner put a wrench on the pulley near the belt ? also loosen the 4 fan bolts on the water pump before you remove the belt ? ther are 7 fan shroud bolts you can split the fan shroud ? 2 bolts on the lower right and 2 on the left ? after you do this then you should be down to pulling off the fan and pulley just slides off ? then remove the 4 waterpump mounting boltss, scrape the old gaskets ? when this is done all you have left is to installthe fan studs from the old pump? you do this by screwing down 2 nuts on the stud then with 2 wrenchs lock the nuts together ? then unscrew the bottom nut ? keep doing that till all 4 are replaced? install the gaskets and add some silicone and reverse the process ? hope this helps repost thumbs up !!
SOURCE: i am wondering how difficult
Aside from the space you have to work in it is not hard at all. Some bolts and hoses and an electrical connection. The accessory brackets stay because the pump is right between them. Unlike the early days before serpentine belt system where the brackets would attach to the pump as well.
But while you're in there, since the LT1 has the distributer behind the pump, you might consider repacing the cap, rotor and wires.
SOURCE: how to replace fuel pump 1996 chevy 1 ton hd
easiest wayI found was disconnect Battery tail lighting & remove bed only 6 bolts remove wiring , lock ring &pull unit out
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