Skip the auto shop - Our mechanics make house calls

Q: Smoke coming from the engine, the car sat longer

asked by on

Hi. My car sat through the winter. When I started it up the other day, there was some smoke coming from the engine. That is the only issue that happened. The dashboard didn't show any lights on and all the gauges are working correctly. What could cause this? Is it serious? Thanks.

A: Hello there. When vehicles sit for long per...

Hello there. When vehicles sit for long periods of time, a few things can happen. A majority of the oil can drain to the bottom of the engine. This means that it might take a second to get pressure when the vehicle has started and can potentially cause some smoke to rise. Another common fault is the engine’s valve seals starting to leak. When this occurs, oil is allowed to drain into the cylinders, and when it burns you will see smoke. A qualified technician like one from YourMechanic will be able to diagnose the smoke that you are seeing as well as any other relevant faults. From there, they will be able to make the appropriate repairs to resolve this 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: How do I stop the engine in another gear other than Park?

While you generally put the gear into park before turning off the engine, there may be times when you will stop it in neutral. Put the parking brake on. Move the shifter to P. Look for the indicator light...

Q: Two mechanics have not been able to repair misfire.

Hi there. Check the intake for a possible vacuum leak around the cylinder 4. If there is no vacuum leak around the cylinder number 4, then there could be a burned valve. Check the compression on all of the cylinders...

Q: What is code p0025?

Hi there, Code p0025 indicates a problem with the camshaft position sensor on bank 2 reading a over-retarded condition. It indicates that there is a problem with the variable valve timing system (VANOS) and needs to be diagnosed by a...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...