Q: Engine

asked by on

Driving down the road last night engine overheating, started steaming , pulled over shut engine off and steam came from all sides of engine, under valve covers, radiator steaming .......did I blow a head gasket?
My car has an automatic transmission.

Hello. Thank you for writing in. Do not assume right away that you have blown a head gasket. When the cooling system overheats and throws coolant all over the engine bay, every hot part of that engine will create steam. The radiator however should not get hot enough to create steam like that, and its likely it or its cap is responsible for the leak. The best thing to do is start by looking for any signs of damages. Are there any cracks on the radiator, blown hoses, damage to the radiator cap, damage or cracks to the engine, or anything else that is obvious? If not, try refilling the radiator and system with water for testing purposes. If it leaks right away without the car running, you know there is physical damage. If needed, start the car and take further diagnosis from there.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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: Power steering fluid leak

Hi. The source of the leak needs to be determined. Leaving a power steering system leaking will only make it worse and can possibly damage expensive components, such as the power steering rack or pump. You may want to enlist...

Q: i just bought a 96 cadillac concourse . how come a alarm triggered when i unlocked the passanger side

When you lock the doors with the remote, you are also simultaneously arming the alarm. As a result, when you open the door manually by unlocking the door lock with the key without disarming the alarm, you are also by...

Q: I installed a after market radio in my 2002 Cadillac Deville and no sounds will come from my speakers. But when I put my stock rad

Your car might have a built in amplifier that requires a 12 volt signal to be sent in order to turn on the amplifier. The wiring harness for your stock radio may already accommodate that but the new radio has...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...