Leaking water pump

front seal, leaking oil means there is less oil in engine. continue and you will a new engine, have it repaired quickly.

Question edited for clarity
Question moved to category.

Water leaks don't cause overheating unless there is no, or very little coolant..

Air locks cause overheating.
Failed water pumps cause overheating.
Blocked radiators cause overheating.
Stuck thermostats cause overheating.

https://www.fixya.com/cars/r29872074-vehicle_cooling_system_no_heat

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If the pump leaks when it is running it indicates a failed water pump seal. Ther is a drain hole in the housing that allows water to run out before it damages the bearing. Check for corrosion holes in the pump body under the impellor. It is not good policy to buy cheap after market pumps as they have an inferior casting that needs a lot of anti corrosion additive in the water to last .

Water pump has a small 'weep' hole that is probably leaking-an internal seal is now leaking though this weep hole and the only fix it to replace the water pump.

it could be a loos hose clip or the water pump, there is a gasket behind the water pump this could be leaking as well there is a quick fix you could try if its a clip or gasket leaking it should stop the leak,but it wont stop a water pump leaking ,,,,,,,,,,,
get some "rad seal" and tip it into the rad,,,not the header tank it go's right into the rad then top it up with water and run up the engine itll its hot after a short time the leak should stop,,fords put it in all there new cars and vans that come out there fatctorise,, so if its good for them to use it,, it must work?

check all the hoses. next, check the water pump, should be behind the fan. If the bearings have gone bad in the water pump, it can sometimes leak coolant everywhere.

It's a 99% chance of water pump leak or the housing at the timing chain that the water pump sits on.
Water pumps can and do leak one minute then seal themselves.
A cheap fix most use is go to a 7 lb pressure cap on the rad.

new water pump.....

Sounds like the head gaskets are leaking.

No, what you're seeing is the weep hole leaking on the water pump. This is the warning sign that the water pump is worn out. Don't use any stop leak or anything to attempt to stop it. You'll be waisting your time. You'll have to replace water pump at this point.