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Why is water pouring out of a hole on the water pump on a 1994 12 ton V6?
Wiki User
∙ 15y ago
The most probable cause is the failure of the seal around the shaft of the pump that isolates the impeller, which is on the coolant side of the pump, from the pulley side (the "outside") of the pump. When this seal fails, coolant can "get past" the seal and leave the coolant system to escape. The hole is in the bottom of the outer housing, and it's put there so water can drain out if it is leaking past the seal. This (the leaking water) is a sign to anyone inspecting the assembly that the pump is leaking, and in almost every case, it's because the seal has failed. Which means you will have to replace the pump.
Wiki User
∙ 15y ago
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