Skip the auto shop - Our mechanics make house calls

Q: Overheating problem with my car.

asked by on

My car is overheating and leaking water.

A: Coolant system leaks completely disable the...

Coolant system leaks completely disable the the engine cooling system from properly cooling the engine. This can cause serious engine damage if not addressed. The problem with some of these leaks, they are not detectable unless the cooling system is placed under pressure. Often times, as engine coolant leaks it will leave a white residue or even moisture in the area where the leak is occurring.

One important note: NEVER remove the radiator cap on a hot engine, even with a leak, the system could still have pressure and you could get serious injury by removing the radiator cap.

Once the suspect component or hose is identified replacing the component and its associated seal or gasket will remedy both the leak and the overheating. You may want to enlist the help of a mechanic, like one from YourMechanic, who will be able to pressurize the cooling system to identify where the leak is coming from. Then safely make the appropriate repair and pressure test the system again afterwards in order to verify that no other leaks exist. This cooling system upon refilling it has a bleeding procedure that must be followed in order to ensure all air is purged from the cooling system. Without bleeding the system, overheating can still occur even though the leak was repaired. A qualified technician will be able to properly fill and bleed your cooling system to ensure the cooling system works to optimum performance.

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: Hello when i pump gas there is a strong gas smell and my car also shakes when i crank it upmy car smokes from the bottom when I t

If you are detecting a fuel odor, there is either a vapor leak (EVAP system), or a liquid fuel leak in your fuel system. To resolve that, the recommended service is a fuel leak diagnostic/repair. The smoke is from hot...

Q: Not getting enough fuel car will not run right. It stalls when you give it gas and stalls when it's running. It's a 1984 Ford Escort.

Hi there, thanks for writing in. Several early 80's Ford's swapped from carburetor to fuel injected engines; including your '84 Ford Escort. However, there were two different fuel systems available that year. If your Escort has the fuel injected engine,...

Q: Went to check my oil, oil cap was broken, threaded plastic was still intact, looked like top blew off.

Hi, thanks for writing in. Excess crankcase pressure is the likely source of this problem. If one or more of your crankcase ventilation components (i.e. PCV valve, oil breather/separator, or other crankcase ventilation device) are clogged up or inoperative, then...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.