Q: Blown head gasket?

asked by on

Car started smoking from water reservoir area, temperature was all the way up too high. Pulled over waited for engine to quit smoking and hissing from reservoir area, added water. Car was hard to start, ran rough at idle. Oil still looks like oil, not milky or foamy. Also had weird chemical smell inside car. White smoke from exhaust. Did I blow head gasket? Check engine light is also on.

My car has 130000 miles.
My car has an automatic transmission.

Hi, thanks for writing in. Unfortunately, white smoke in the exhaust, overheating and rough running all point to engine coolant getting into the combustion chamber. This is generally caused by a crack in the head or block or more commonly on the Sebring head gasket. Removing the spark plugs and looking to see if one is much cleaner than the others might be an indication which cylinder is getting the coolant incursion or having a coolant pressure test performed to ensure the cooling system is not leaking elsewhere. If it has been determined the leak is in a combustion chamber, the cylinder head would then need to be removed and then diagnosis to determine if the head gasket has failed or if the problem is caused by a cracked component.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make or suggest any repairs as needed.

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!
  1. Home
  2. Questions
  3. Blown head gasket?

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: My electronic throttle control light is flashing and when I press on the gas pedal it doesn't go pass 20-30 mph and stalling

Hello. Thank you for writing in. The two sensors work together to track the location of the pedal as its being depressed. One is located on the pedal while one is located on the firewall. It is best to replace...

Q: Driving then all of a sudden loose speed and truck won't accelerate. Power is fine. Engine shakes a little. Gas pedal feels loose

Hello. If the speedometer is not working, then the first thing I would check is the vehicle speed sensor. If the speed sensor is bad then the computer will not shift the vehicle which will cause this. If the engine...

Q: Low rough idle and engine stall outs.

Hi there. Though this can be caused by a few different things most of the time it is caused by a failing throttle body. The throttle body will have a failure in the actuator motor and this occurs, most of...

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.