wow he took that right out of a book.the only problem is you need special tools for the water pump and you have to pull the starter to use the special tool to hold the crank when you remove the crank pulley.theres alot of orings that tear real easy on the 6.6.if your not very confident in your mechanical abilities i wouldnt recommend doing it.mainly because when you take it to a shop after youve torn it down,it would cost the same if you would have taken it in the first place.sorry but the duramax is a finnicky *****.How do i change a water pump on a 2005 chevrolet 2500hd trubo deisle?6.6L Engine Turbo Diesel.
Remove the left front fender wheelhouse inner panel.
Drain the coolant.
Remove or disconnect the following:
Thermostat housing crossover
Fan clutch
Crankshaft balancer
Water pump outlet pipe-to-water pump nuts
Engine wiring harness retainer front the inner stud
Water pump bolts, noting their locations as they are different lengths
Water pump and gasket
