Skip the auto shop - Our mechanics make house calls

Q: Smoke on start up

asked by on

Just purchased. When I start it cold it bellows out a large cloud of smoke. White I think. Doesn't do it next time if motor still hot. It does not smoke when idling or seem to have other issues. No loud motor sounds. No oil on the floor.

My car has 155000 miles.
My car has an automatic transmission.

A: Sometimes the muffler will hold some moistu...

Sometimes the muffler will hold some moisture when the exhaust cools from the day before. This moisture will evaporate quickly when you first start the engine in the morning and goes out the exhaust as steam. This is most likely normal. If you notice the engine is using excessive oil, coolant, or if the smoke isn’t going away then have it inspected. In any of these cases, have a certified technician, like one from YourMechanic, diagnose the smoke firsthand for an accurate repair.

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: Battery drain

The battery should be tested (load tested). The battery may have a bad cell(s) and thus will not hold a charge and/or has inadequate capacity. If the battery tests OK on a standard load test, you should confirm that the...

Q: Exhaust manifold leak gaskets

The heat generated by this engine at the higher power levels required to haul these rigs around causes much more expansion and movement of the exhaust manifold relative to the block. The manifold expands, and either cracks, or warps, and...

Q: Clunking while shifting from first to second gear on 2005 Chevrolet Avalanche

The shifting clunk you feel may be in the transmission when changing gears, the torque on the bands when released may cause the momentary reversal of the output shaft between gears. The manufacturer states in technical bulletin 01-07-30-042h that this...

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 Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...