# 1
Look for signs of a coolant leak inside your car. If you
see small puddles or patches of coolant on the floor mats or under the
seat, your water pump may not be working properly.
# 2
Look
for puddles of leaking coolant outside your car. If you notice a
visible puddle of coolant where your car has been parked, the water pump
may be broken and is leaking coolant.
