It will not work right.
The remains of the old coolant can cause the new coolant to fail. Using the wrong type of coolant can also damage the engine.
Something is wrong. Seek professional help before you get hurt.
one reason this may happen is as simple as the cap on your cars coolant reservoir is stripped or improperly screwed on. when this happens it doesn't allow pressure to build or hold.
Wrong mixture make sure you have pre diluted/mixed coolant/antifreeze.
If only adding coolant to a leaking system it is safe because soon you will be forced to drain the coolant and fix a problem
A leak. You need to see where it is coming from.
you need to add coolant to the coolant resevoir. coolant is antifreeze. if you dont have enough in your car you can overheat and damage your engine.
headgasket leak and exhaust gas is getting into the coolant
Yes. Thats why every vehicle is designed to use such coolant
An incorrectly fitted radiator cap can allow coolant to escape the system.
possibly the coolant temp. sensor
Run a pressure test on it.
May just be low on coolant.
from the water pump tell tale hole
It is red. I would not take any chances of using the wrong coolant. Purchase the coolant at your local Toyota dealer and you will be 100% sure you are using the right stuff. You only need to replace the coolant every 3 years.
this is wrong?
Your reservoir may be low. This will trigger the coolant light. It is often a malfunctioning sensor and nothing is actually wrong with the cooling system or coolant. It can be easily replaced. Alternatively you can leave it, but monitor your engine temperature and coolant level.
Then you will get the wrong answer.
Doesn't have to be anything wrong. Some condensation is a natural result of the combustion process.
Depends on the car and what is actually wrong with it
Low coolant level and possible coolant leak.
Well, temp senors work by changing their resistance as the engine warms up, or cools down. If you have a wrong temp sensor, you can make your car run richer or leaner. Rich=more fuel being used Lean= Less Fuel being used