On my radiator where the cap goes theres a stick broke off of it where water runs out off it to the other bottle. how can i fix it

I have heard of cases where there is enough coolant in the plastic bottle (reservoir) but, there is not enough coolant in the radiator itself. When the car is COLD (important - hot water and steam will burn you!!), remove the radiator cap and fill the radiator itself with coolant. In the COLD condition, remove the radiator cap, then start the car and while the engine is running, fill the radiator with coolant until the coolant is stagnant at the filler spout, then quickly replace the cap otherwise the engine will heat the coolant up and will start blowing out the top! If this doesn't fix the problem, replace your radiator cap and if that doesn't help either, replace the thermostat. Lastly but not likely, it might be a problem with the temperature sensor.

John sounds like your sensor may be bad. Next it could be your thermostat sticking use a temp gun and measure the temp of your radiator at the cap. Do not remove cap. Just take temp. If it is getting hot it should spit water out. Check to see if the electric fan is coming on the sensor to cut the fan on maybe bad or the fan. Hope this helps.

if leaking from a hose change the hose. if from the ends of the hose change the jubilee clips.if from the expansion bottle cap .change the cap.but it may be due to air in the system if so put a radiator cleaner in the expansion bottle .run for about 20 miles .then drain and refill with a 50/50 mix of anti freeze.then put your heater on full run the engine till water gets hot .then refit the expansion bottle cap.to bleed out the air in the system.

check the water level in the bottle. If the radiator cap is faulty it will allow excess hot water into the bottle but on cooling down the water is supposed to be sucked back into the radiator. It gets to a point where low water in the radiator will not be pushed out and you get the impresion that you are loosing water If this area checks out the only other place is through the combustion chamber as steam indicating a head gasket or cracked head./ Check the radiator cap first and while you are at it with the engine hot fill the radiator right up and run the engine at idle. If you see air bubbles blowing out the water intermittently put your money on that is where the trouble is. hrad gasket or cracked head

There is no water bottle

All vehicles have a coolant recovery container

When the vehicle warms up ,some coolant goes
past the radiator cap into it

At night when cool, the radiator draws back what
it needs

Been that way for 50 years

That container isn't under pressure as you can see

You have to diagnose the engine overheating issue

You have a new radiator,I would assume new thermostat
& rad cap,so continue on

It is very old, so a head gasket wouldn't be a supprise

make sure you dont over fill the radiator bottle past max, something else to try is run the system with out the cap on for a few minutes at idle to expel any air pockets in your cooling system.

If the radiator is leaking, put a bottle of radiator stop leak in it,fill it up the rest of the way with water, tighten cap, and run in idle for 15 to 30 minutes. If the leak is severe or one bottle doesn't work, use two bottles of stop leak and run for 35 minutes.

If it's the radiator cap that's leaking, replace the cap with a new one. Also check to make sure there are no loose cooling hoses.

Safety first: Use extreme caution to never remove the radiator cap when the engine is hot, severe burns from escaping hot water could result.

It sounds like you have air in the Cooling system and the bars leak permanent seal does not help. The sealer creates restrictions through out the water jackets and can cause the thermostat to stick. Replace the radiator cap and run the truck with the radiator cap on the first click and keep an eye on the over flow tank, refill the over flow as needed and make sure you have the heater on the highest setting to work out all the air in the system. Once all the air has worked it's way out of the system, then you can close the radiator cap to the second click to ensure full pressure is built up in your cooling system. Good luck and keep me posted.

Do this when cool. Take radiator cap off, start the engine, turn on heat (not defrost) and now top up coolant to about an inch or 2 from top of radiator, as level drops down, and let vehicle run until the radiator fan comes on, then off, about 3 times, and add coolant as needed while it's running. After that, put radiator cap back on tight & make sure return bottle is filled to proper level. Now try that & see how heat is, temperature gauge etc, and keep an eye on return bottle level for a while. Let me know how it is.

hi my name is paul
these days most cars have a expansion tank under the bonnet or hood
this is were you fill it up with water it looks like a plastic bowl with a screw lid
DO NOT UNDER ANY CIRCUMSTANCES UNDO CAP WHEN ENGINE IS RUNNING OR IS STILL HOT *** DANGER OF SCALDING DO NOT OVERFILL CHECK OUT MAX LEVEL
car manufacturers use expansion tanks because as the water in your engine warms up it expands under high pressure and fills up the expansion tank with excess water when the engine cools down the water cools and it shrinks and goes back into the cooling system hope this information has been usefull
regard paul