Skip the auto shop - Our mechanics make house calls

Q: My car is running hot

asked by on

my car is overheating. there are no leaks. had a pressure test done. there is no water mixed in with the oil. changed thermostat, water pump, radiator hose. service engine light is not on. went thru 3 containers of coolant within an hour. can pour gallons an gallons of water into the water tank and it jus keeps disappearing at the blink of an eye. there is nothin leaking out. so where is the water and coolant going? took car to mechanic shop. they did not see anything wrong and do not know why it's running hot. when open the radiator cap water pours out of the over flow. bled the car for air.there was a lot of air that came out but then the water started pouring out consistently. car can run for hours in park without getting hot. but gets hot while in driving on the road. it gets all the way to the red. what can be making the car run hot? where is all the water and coolant going? and how come mechanics cannot find anything?

I would recommend checking for smoke coming from your exhaust. Since you are not able to find a leak and you are positive that the coolant is not mixing with the oil, it is very likely that your engine is burning the coolant in the combustion chamber. This can happen due to a faulty intake manifold gasket or a faulty head gasket.

If the intake manifold gasket has failed, this repair can be done within a few hours and will not cost an arm and a leg. If the head gasket has failed, the repair for that could take several hours and would be very expensive. It is best to have the overheating issue diagnosed by a certified technician, like one from YourMechanic, to ensure that the wrong repair does not get done. This will save time and money in the long run.

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: I need to diagram to 2000 Oldsmobile Intrigue the diagram for a serpentine belt replacement

Here is a great diagram for your serpentine belt routing.

Q: I would like to know what parts I need to replace VVT ECCENTRIC SHAFT SENSOR and Valve cover

Although we would need to confirm using your VIN number, the required valve cover in your application appears to be part #: BMW-11127552281. The required BMW Eccentric Shaft Sensor (Valvetronic) is part #: VDO-S119565001Z. These OEM parts can be installed...

Q: rear turn signal is out brake light works just not the turn signal?

If the front turn signals work but the rear does not, then it is not the fuse of the turn signal switch. You do have a trailer adapter module in left side of luggage compartment that may not be sending...

Related articles

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...
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...
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.