Q: White smoke coming out of hood when idle / stopped

asked by on

My temperature gage will jump up and back down frequently, and I've noticed some white smoke coming out of the hood of the car. Heat and a/c blow air, but there is no temperature regulation in them.

My car has 169000 miles.

This sounds unfortunately like a blown head gasket problem. The fluctuation in temperature and white smoke is usually a sign of this. I would suggest having the coolant tested for traces of combustion gases which will indicate if the head gasket is compromised. If this is in fact the case, I would suggest having an certified technician, such as one from YourMechanic, come to your home to diagnose the smoke firsthand and help you make the necessary repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. White smoke coming out of hood when idle / stopped

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: Fuel rich smell from car

I'm not sure if you mean you smell fuel or your vehicle smells like it's running rich. If it's the latter, there are dozens of reason for a rich mixture. Anything from a bad fuel pressure regulator to a faulty...

Q: Gauges and Radio flicker when driving

This could be caused by a faulty power steering cooling fan. The Mini's have an electrically controlled fan that will de-activate power assist if the fluid temperature exceeds a programmed standard to prevent damage to the power steering system. These...

Q: Q: Car having problems starting.

These cars are known for having faulty crankshaft position sensors. This sensor can cause an extended cranking condition, which eventually turns into a vehicle that won't start. Checking for diagnostic codes stored in your power train control module (PCM) would...

Related articles

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...
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.