was gasket replaced? if we are sure pump seal is failing..( check underneath at leak hole for drips e.g. tissue and mirror) then it can be swapped for a replacement and send back unit as unsuitable for purpose. are we running a hot engine? do we have an air lock? where air locks occur out temp gauge can show cooler than normal but engine in fact over heating. decent garage can sort.
Surely a brand new water pump is still under warranty - - - even rebuilt ones around here come with a 12 month warranty.
if it was started with low water for some reason ,,change thermostat or hose ...to get the fan off hit the large wrench with hammer ,,,or fan is out of balance
I'm sure you used a brand new gasket correct?I'm also sure you scraped any old residual gasket material off the block before you installed the new gasket and water pump correct?You're also suppose to torque the bolts on this water pump in a certain sequence and to 40 ftlbs.If its leaking from between the pump mounting surface and block,its most likely improperly torqued or under torqued bolts,old gasket material wasn't cleaned off good enough,or the block surface has gouges in it which are too deep for just the gasket to seal.If its leaking from the underside of pump out of weep hole,the remanufactured water pump is no good and needs replacement.Make sure none of your hoses clamps are loose.Make sure its coolant leaking and not silicone fluid from the fan clutch.Fan clutch also needs to be stored upright when its not bolted to the water pump.If not,this can cause fluid to start leaking out of clutch.Click link below for vehicle water pump diagram and related info.
Early WP seal failure, can be due to partially blocked radiator or mixing of antifreeze types occasionally poor quality antifreeze some of the additives become granular and cap bad allowing too much pressure ...early WP bearing failure , fan/clutch assembly out of balance, unit dropped on shaft, hammering on fan clutch to install... In your case I'd guess radiator needs to be cleaned by Rodding it out any radiator shop does it and will verify blockage...have a new inlet tank installed while it's apart...and get cap pressure tested..
