While all vehicle water pump hoses are replaced "basically" the same way there are different ways of removing them.
First, be sure to allow the vehicle to cool down before attempting to remove a hose of you will get burned.
If the lower hose is being replaced you must first drain the radiator completly so be sure to use some kind of container to capture the anti freeze, even if your nor going to re-use it. Of course if the lower hose blew out while driving, your radiator will already be empty.
If the upper hose is being replaced you still have to remove some of the antifreeze, to below the level of the hose.
Be sure to have some rags on hand to soak up any spilled antifreeze
After the vehicle has cooled down, carefully remove the radiator cap, drain the radiator as needed, remove the hose clamps, grab and twist the hoses close to the mounting point to remove. Sometimes the hoses need a little coaxing so be patient.
Place the clamps on the new hose, being sure they are loose. If the removed clamps are old I would suggest replacing them with new ones. Install new hose and tighten the clamps.
Be sure to refill the radiator !
Start the motor and check for leaks. If needed, retighten the clamps. Drive for a few minutes and re-check for leaks.
Non, replacing a water pump will not cause a hose to leak.
Replace the hose.
If you are referring to the water inlet hose on the back of the water pump you can use this question as reference. How do i replace the water pump on a 1993 Geo Prizm 1.8L?
water pump hose replacement
Tighten the clamp on that hose. If it still leaks, remove the hose and inspect it. It may need replacing. Now if you are saying there is coolant leaking from the top hole on the water pump itself, replace the water pump, as it is defective.
Remove the belt from your 1999 Chevy Metro water pump. Remove the water pump return hose. Remove the water pump retaining bolts. Reverse the process to replace the water pump.
Begin by removing your water pump belt. Remove the water pump return hose. Remove the water pump retaining bolts. Reverse the process to install your new water pump.
Remove the belt from your 1995 Chevrolet water pump. Remove the water pump hose. Remove the water pump retaining bolts. Reverse the process to install the new water pump.
The easiest way to remove a bypass hose on a Dodge is to cut it off with a sharp knife. The hose is cheap, I replace it with every water pump.
Need to replace the water pump.
Water pump has failed. Replace the water pump, hose, belt, thermostat, and flush the cooling system. Replace the coolant with a 50/50 mix of anti-freeze and distilled water. Bleed all air from the system. Check the other hoses and belts and replace as necessary.Water pump has failed. Replace the water pump, hose, belt, thermostat, and flush the cooling system. Replace the coolant with a 50/50 mix of anti-freeze and distilled water. Bleed all air from the system. Check the other hoses and belts and replace as necessary.
Drain the water from your 1987 Nissan Stanza. Remove the water return hose from the water pump. Remove the water pump retaining bolts. Reverse the process to install the new water pump.