I have a Ford F150 XL 4WD 5.4L. What happens is that after stoppin for around 10 minutes the water starts leaking, but there is no high temperature indication until it lost around half the water, and then it indicates it's overheating.
Notes:
* I removed the thermostat two monhts ago
* I removed the water pump but it looks in good shape, it might be leaking but very very little, not enough to run out of water in 10 minutes
* It has 200.000 miles
* I can't see any leak in the water hoses
* The readiator doesn't seem clogged
* The water intake is not leaking
* There is no warning light in the dashboard

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