Skip the auto shop - Our mechanics make house calls

Q: Car is leaking massive amounts of antifreeze, and then proceeds to overheat.

asked by on

Okay so my car is leaking massive amounts of antifreeze/water, and then after driving for about 20 mins or so once the car really warms up it starts to produce a white steam in the engine, and has like a sweet smell to it. Then the car begins to overheat. I have to constantly refill the antifreeze/water daily and sometime several times throughout the day just to make it to my destination. As I am refilling it, I can see the antifreeze leaking from underneath the car onto the ground, and it usually takes around a gallon and a half of antifreeze/water to refill each time. Anytime I drive, or park somewhere there is a massive trail of antifreeze following behind the car. If the car starts to overheat during a drive i have to immediately pull over, and allow the car to cool down and then proceed to refill the antifreeze once again to make it to my destination. Any idea what this could be?

My car has 167000 miles.
My car has an automatic transmission.

A: Hi, thanks for writing in. It would be high...

Hi, thanks for writing in. It would be highly recommended that you not drive the vehicle until the leak is located and fixed. One and a half gallons is basically the amount to fill the entire cooling system, so the leak is definitely major.

To constantly drive the vehicle with this continuing overheating of the engine, serious damage will occur. It would be best to immediately have a certified mechanic take a look at the vehicle and identify where the leak is coming from, and make the repairs. The leak could be coming from a ruptured hose, a failed radiator, or any number of other possible areas.

If you need help identifying and repairing the issue, YourMechanic offers several options. They have trained mechanics that can come to your home, or place of business, and perform the diagnosis of the coolant leak and repair it as necessary.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: burning smell smoke out of vents, no blowing for air or heat

Hello there, Smoke coming out of the vents is not a common failure point. There are a few possible causes for this though. The most common would be the blower motor resistor, blower motor, heater core failure, wiring fault, or...

Q: High temperature with acceleration - 2013 Dodge Challenger

Hello there, under all driving condition your 2013 Dodge Charger, the temperature should not rise outside normal operating temperatures. If the engine is getting hot during acceleration, then there is likely a problem. The most common faults would be a...

Q: all the tranmission fluid burned out, dip stick was black, burning smell. new tranmission installed, a line was punctured on insta

Have the vehicle checked after filling the transmission. You should not let the fluid get low on the new transmission. You may need to have the vehicle run on a lift to see where the leak is. If you need...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...