Are you out of the extended pump warranty.......10yr 120k if memory serves.Duralast New Water Pump BWP-2274 - Read Reviews on Duralast New #BWP-2274
So have the waterpump went out on me again. Have anyone found a manufacturer that have a water pump that doesn't break so often? Duralast has one from autozone, has anyone have a long term luck with it?
I believe the GM has had three redesigns as well as fastener replacement and specific torque ratings for the fasteners (no longer the same for each).
Most secondary failures are a result of fastener reuse and incorrect torque since each position has a different spec.
I am not aware of any aftermarket pump changes in design but the fasteners (and new torque specs) must be followed.