Can a water pump make water to return to the water bottle

I would be looking at cracks in the hose to the reservoir to the radiator . Look for loose fittings. Check that if the hose is in the top of the reservoir in the filler cap that the pick up line is to the bottom of the bottle and not cracked . What you have is air getting into the line when the vacuum from a cooling engine starts to work and that prevents water being sucked back

Either replace the washer bottle or pull the pump and replace the pump some cases has had a pump leaking around the seal or a cracked pump due to adding water in the fluid bottle, never add water it will freeze and pop the pump

Hi. It souds to me like you might have to replce the thermostat in the water pump. If you think there is air in the system, try opening the water resevoir bottle and let the car idle for about 5 minutes, topping up the water as the air voids escape through the return pipe. I doubt that there could be air in the system, as the pump would automaticaly push the air out into the resevoir bottle. Worth a try. Hope this helps

What water bottle? If it is the windshield washer, then either the hose, pump, or bottle itself is cracked. Find out exactly where the water is coming out.

If some other bottle, answer the first question.

Thanks, Jim

make sure the pump is working . there are two pipes goin to thye pump one is the high pressure pipe the other is the return if you dissconect the return pipe and put it in a bottle and start the car the bottle should fill quickly be ready to shut the engine down u only need to run it for a few seconds

Airlocked? Often by pulling a line of an air buble will be relased. moving hoses so they can fill with water and the air can pass works too. You did not mention the engine you have. Mine is the 2.3, when I drained, flushed and refilled the system had no major problems. there is a air bleed line from the water outlet (under ps pump, left side of engine) to the plastic bottle, right front. the restriction is in the niple at the pastic bottle is it pluged preventing the air to bleed? I always drill a 1/16 hole in the flange of a new thermostat when replacing it, that helps the air to escape and the system to better fill. The thermostat is on the return to the engine, water pump inlet, under the exhaust manifold (not a great design)

Timing - engine is not sounding right or back firing.
Head gasket - water and oil mixing, see inside water bottle. or open bottle. rev engine when cold, if starts spitting water out while cold like a fountain.
Water pump - Water leaking from side of engine. or when car started and water bottle is open and no circulation is visible could be signs of water pump
Remember - Block radiator lines can also cause over heating problems and lack of water circulation.

there are two pumps on the bottle one for the front and the other for the back. most likely the pump stopped working or something got in it and blocked the water flow. the pumps are at the bottom of the bottle. check them out first. they will be the same so you could switch them and see what happens. good luck

bad low coolant switch or still low on coolant.

Engine Cooling The cooling system components are the:

• engine coolant temperature sensor (ECT sensor) (12A648)
• radiator (8005)
• degas bottle (8A080)
• radiator draincock (8115)
• water pump (8501)
• water temperature indicator sender unit (10884)
• water thermostat (8575)
• dual speed fan motor assembly

The water pump circulates the coolant.
The water thermostat:

• controls the engine coolant temperature.
• allows quicker engine warm-up.

The degas bottle:

• provides a location for fill.
• contains coolant expansion and system pressurization.
• provides air separation during operation.
• replenishes the engine coolant to the system.

The fan motor (8C607):

• operates only when the ignition switch is in the RUN position.
• will not operate with the switch in the OFF position.

The engine coolant flows:

• from the lower radiator hose (8286) to the water pump.
• from the water pump to the engine block and the cylinder heads.

A closed water thermostat returns the engine coolant to the water pump; an open water thermostat allows the engine coolant to flow to the radiator.
Engine coolant provides freeze protection, boil protection, cooling efficiency and corrosion protection to the engine and cooling components. In order to obtain these protections, the engine coolant must be maintained at the correct concentration and fluid level in the degas bottle.
When adding engine coolant, use a 50/50 mixture of clean, drinkable water and engine coolant.
To maintain the integrity of the coolant and the cooling system:

It should use the same tank as the front washer fluid