Thread: Coolant gushing out the water pump weep hole

The only faults that will cause the water to flow out the "weep hole" is either a failed seal, incorrectly installed seal, impeller broken or loose on the shaft, or the water pump housing cracked.

The first of these is the only one that is at all likely, although this could be caused by the second.

There is never a good reason for removing a thermostat, even in Brisbane, unless it is confirmed to be stuck in the shut position. And then the correct solution is to replace it as soon as possible. Prolonged operation with the thermostat removed will result in slow warmup and operation at below optimal temperature, even in Brisbane, and these will cause increased fuel consumption, oil contamination, and decreased engine life.

It is not a good idea to take the thermostat out, if faulty it should be replaced for reasons John has said. Instead of taking it out you can remove the centre of the thermostat, the cooling system works better with the restriction otherwise the water can pass through the radiator & engine too quickly & not absorb & dissipate the heat. It would be getting hot due to loss pressure in the cooling system through the leak at the water pump. The pressure increases the boiling point of the water. Would say the pump needs overhaul or replacing.