Skip the auto shop - Our mechanics make house calls

Q: My car is overheating and constantly filling with water

asked by on

Overheating must fill with water constantly Leaks water from passenger side of engine. Changed radiator, hoses, thermostat/still leaks and must be filled.

My car has 120000 miles.
My car has an automatic transmission.

A: Thats a good question. I will go through a ...

Thats a good question. I will go through a few steps you can take to see where your problem is occurring.

  • Get a UV light and dye to put in your coolant.

  • Run your car until it is at operating temperature and turn the car off. This will cause pressure in the system make your leak more present. You may even want to get a yellow set of glasses so you can see it better.

  • Is your upper radiator hose excessively tight? If so, you have a faulty thermostat. Sometimes you will receive faulty parts even when they are new.

  • Can you see fluid on the ground? Where is it? If it is in the front of your car, look at the front side and back side of your radiator. If your radiator is wet you have found your problem. If you don’t see the leak, check your oil.

  • If your oil is milky or contaminated then you have a problem with a blown head gasket. (These aren’t the only signs of a blown head gasket, though).

  • Is your air working properly? If your car isn’t heating or cooling properly you may have a clogged heater core.

Note: there is one more issue we need to check. When you look at your coolant, does it look like its mixed with different colors? Green, yellow, orange, pink, or purple? If so, this is your problem. You will have to flush your system vigorously, maybe around 5-10 times to fix this. I have seen this many times as a technician. You should never mix colors of antifreeze because it will start crystalizing in the engine and radiator. If you need assistance with any of this, a certified technician from YourMechanic can come to your home or office to inspect the coolant leak.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Change from automatic to manual 1995 Suzuki Esteem

Hello - there is obviously a missing connection in the driveline. Check that axles are properly installed so that there is a power path from the transmission to the wheels. Check the shifter cables for proper attachment as well -...

Q: Why do I smell gas in the car?

There could be several reason why your car is smelling like gas. Your car's spark plugs could be very worn out and not firing properly, causing the gas not to be burned properly and creating a gas smell in the...

Q: How often should I change the coolant?

You should change your coolant every five years, or 150,000 mile-, whichever comes first.

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...