Most water pumps fail by leaking.
A few water pumps with plastic impellors can fail when the impellor breaks but this is a bit rare.
The only sure way to know is to remove the thermostat and upper hose. Put hose in bucket, start engine. A good amount of coolant should pump out.
A few water pumps with plastic impellors can fail when the impellor breaks but this is a bit rare.
The only sure way to know is to remove the thermostat and upper hose. Put hose in bucket, start engine. A good amount of coolant should pump out.
