Skip the auto shop - Our mechanics make house calls

Q: Coolant is boiling

asked by on

My coolant is boiling there is no leaking or smoke water pump and gasket just repalced
My car has an automatic transmission.

You need to check to see if the thermostat is opening properly and if the cooling fan came on. The upper and lower hose should be hot if it is open.

If this is your first time running the car after a water pump installation then let the vehicle cool enough to make sure that the coolant will not burn you if you open the cap. Top off the coolant to the hot fill line and close system.

If the engine continues to boil and gets too hot then you will need to make sure you did not blow a head gasket. This is something to look out for if the vehicle was overheated before the water pump was replaced.

I’d suggest having the car inspected by a certified technician, such as one from YourMechanic, who can perform these checks and properly diagnose your overheating issue.

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: Car sounds like it's revving in park

This concern may have illuminated the Check Engine Light as well. When fault or warning lights do illuminate, there is generally some stored fault code to go along with it. Have an experienced technician, such as one from YourMechanic, inspect...

Q: Emissions lamp on and won't go out.

Hi there. There could be numerous different things wrong with the emission system to cause the light to stay on. The engine could be running rich or lean causing the O2 sensors to register the condition. The fuel system could...

Q: How much to install an engine in my 2001 jag xjr supercharged?

Hi there. Not sure if you received the first email reply, but engine replacement is not a service that mobile mechanics are able to offer. This service should be completed at a local engine repair facility or Jaguar specialist, due...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...