Skip the auto shop - Our mechanics make house calls

Q: Car runs hot and antifreeze leaks

asked by on

My car is running hot. The antifreeze is leaking. The car will start, but it runs hot very quickly. The air conditioner also goes in and out when the car is running hot.

A: First we have to find out where the coolant...

First we have to find out where the coolant is leaking. That could be the cause of the over-heating, or just another symptom. Engines that heat up and run hot very quickly is a common symptom of the head gasket leaking. Combustion gases are entering the cooling system. Engines that are turbo charged are more prone to this because of increased combustion pressures. The AC working sometimes or not at all is normal with a hot engine. The computer disables the AC when the engine is too hot. AC adds a tremendous amount of heat to the engine compartment. I recommend having a professional locate any leaks and make the repairs necessary to get your car back safely on the road.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: VW Bora V5 2001 automatic dosnt shift gear from 3rd (manually shifted) until i hit the rpm over 6000 plus

This is common when the vehicle is low on transmission fluid or has a faulty transmission control solenoid. Automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission...

Q: Engine idle fluctuates

You may have a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at idle. Since...

Q: Antifreeze leak in a 1999 Dodge Ram 1500

Having a coolant leak inside the cab of a vehicle pretty much means that the heater core has developed a leak. Usually when the coolant fogs up the window, the way it does with your Dodge Ram, it is an...

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...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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...