Q: Q: White smoke coming out my exhaust.

asked by on

Hi there i just recently bought my honda accord ive had it for about a month already and i drove it without oil for a couple of days. Once i noticed my motor started to make a knocking i checked my oil and it was at the very tip of the stick. So i put oil and now everytime i start it to heat the motor up a cloud of white smoke comes out my exhaust; but this only happens when the motor isnt heated up. After its heated up theres no white smoke as i use it. Please help i would hate to find out my car is no good after a months use.

My car has 159 miles.
My car has an automatic transmission.

Hi there. The problem could be that your valve stem seals are leaking oil into the cylinders when the car is off. Once you start the car, the engine burns the excess oil that is in the cylinders. This issue is most likely due to running the engine with low oil levels. Oil keeps the seals lubricated and if they get hot, they split and allow oil to run down the valves and into the cylinders. There is no quick fix for this and I do not recommend oil supplements that claim they stop smoke and fix engines. These products can cause more damage to the engine over time. If you need further assistance, I recommend you have a certified technician, like one from YourMechanic, inspect the white smoke coming out of your vehicle and suggest an appropriate repair.

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. Q: White smoke coming out my exhaust.

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: Weak stream of fluid from windshield sprayers

Hello, thank you for writing in. With the work you have already done, there are only a few other options for this system to fail. One of which is the electrical connections at the motor. If these are dirty or...

Q: What does it mean when the MIL stays on after car if shut off?

You may have a sticking EFI relay in the main fuse box in the engine compartment. This relay if stuck on can keep power to the computer to turn on check engine light. Replace the relay and then retest. ...

Q: 2008 Odyssey driver side slide door stopped working, no indication on dashboard.

The door actuator, motor control and/or circuit components (wiring, relay, etc.) are faulty. To resolve this, a circuit trace is performed. In other words, the circuit is powered on to open/close the door and the point of the interruption is...

Related articles

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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...