1999 Nissan altima coolant leak Leaking Coolant - 1999 Nissan Altima - RepairPal.com Leaking Coolant on 1999 Nissan Altima . Their is coolant leaking from what I suspect where the water pump is located. 1999 Nissan Altima... Source Source Source Source Source Source Source Source Source Source Read Also: 1999 Nissan altima antifreeze Nissan altima coolant leak Nissan altima antifreeze leak 96 Nissan maxima coolant leak Nissan titan leaking coolant 2002 Nissan quest coolant leak