Hello everyone, got a problem here. I bought a 94 ford ranger 4/cl a couple days ago. At first I notice the water was low in the resivor, so i quickly add some fluids. This took care of must of the problems, until yesterday I was at work and the truck began to overheat. Im not sure the truck is leaking any fluids, nothing is visible on the ground were i park. The truck still puts out heat inside the truck so i don't think it isn't the thermostat. There is also no water leaks around the water pump. Also, the fan is a belt driven fan is on the whole time the truck is on.
I believe that the truck's water pump is out even though there isnt not any visible signs of leaking out the front of the motor. Is there anyway of finding this out before i go tearing everything apart?

One way to determine look at the weep hole on top of the water pump coolant will leak from the hole if the seal has failed

If water pump shaft bearing fail there may be a howling sound at the front of the engine while it's running

Shaft wear can be felt if the water pup pulley is rocked up and down

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2005 Ford Ranger EDGE
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cool so just turn the truck on and see if water comes out the weep hole? is there any chance that this could be a thermostat issue, even if the heater still works?

better hope its not a head/ head gasket.

no i dont think its the head, cause the car still has good compersion, and there is no water in the oil, or oil in the water.