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.

A: You need to check to see if the thermostat ...

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: Do I really need to use high octane fuel or can I use mid grade (occasionally)?

If your vehicle is required to use high octane fuel, then using anything else can cause damage to the pistons and valves in the engine. When you say you cannot hear any pinging when you are using mid grade fuels...

Q: hi, i have problem with vw polo 1.4, its show hot sight on the dash board what is the problem

Hello. The DSG transmission warning light is there to tell you that the "Direct Shift Gearbox" transmission is over heating. When this happens, you need to pull over and let the transmission cool down. Driving when the transmission is overheating...

Q: Transmission slipping only in reverse

What a technician would do is first check the level and condition of the transmission fluid on your 2001 Audi A8 Quattro. Next, they would use a Volkswagen-compatable scan tool which will allow the Transmission Control Module (TCM) to be...

Related articles

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...
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...
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.