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Yes. The seal for the water pump is bad. Replace it.
No. A leaking coolant pump is caused by a worn seal inside the pump. You will have to replace the pump.
If it is the pump seal - replace the seal and other related gaskets. If it is the pump itself - replace the entire pump.
YOU DON'T!!! I have a 2003 avalanche and I had to replace the water pump you can't replace the seals!!! It's a defect in the 2001 to 2003 avalanche the seals fail.
The seal is shot, time to replace the water pump. Do not let engine over heat!
If I remember correctly you will need to remove the timing belt to replace this water pump. This is a very labor intensive job. You should replace the timing belt, tensioner pulley, camshaft seal, and crankshaft seal while you have the car apart and access is easy.
By bore do you mean weep hole? If so, the seal is leaking. Replace the pump.
i don t know. how do u seal a water pump?
The mechanical seal probably needs to be replaced, or it may be the seal plate gasket. if it is the seal it will eventually ruin the pump motor if not replaced. Go to you tube for a how to videoPOOLCENTER.com - Hayward Pool Pump Impeller-Seal Replace 2
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.
The vent hole is referred to as a weeping hole. It's sole purpose is to indicate the failure of the water pump shaft seal. If there is antifreeze weeping from it, then the seal is leaking and the water pump needs to be replaced before catastrophic failure. Which is to say, replace the water pump now, before it becomes a more expensive problem.
you need a new water pump seal. also check to see if the shaft is worn might need to replace that too you need a new water pump