Bluish white smoke during smog, did not pass. Does stop s...

Q: Bluish white smoke during smog, did not pass. Does stop smoke fix the problem?

asked by on August 09, 2017

Bluish white smoke coming out of muffler. Failed smog Smoke snap test, will stop smoke fixed it so it will pass smog

My car has 225000 miles.
My car has an automatic transmission.

Hi there. In most cases, bluish white smoke is caused by damaged piston rings, or damaged cylinder head valve guides and is referred to as oil blow back. I am not a believer in "stop smoke" products, as they typically create more internal engine problems than good. If the vehicle didn’t pass smog inspection, it’s probably not going to by adding the stop smoke product.

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

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

Where is the map sensor on a 2001 Montero Sport

Hello - the Manifold Absolute Pressure (MAP) sensor is located on top of the intake manifold, in the middle. This will be between the valve cover and the firewall that separates the engine compartment from the passenger compartment. It's a...

My car consumes fuel excessively

Hello there. Many faults could cause your vehicle to consume excessive fuel. The most common faults are a misfire condition, a bad mass airflow (MAF) sensor, a fuel leak, a vacuum leak, a faulty oxygen sensor, or an exhaust leak....

Engine starts but stalls immediately

This may be an issue related to what is called an idle air control module. This is a module that regulates the amount of air that is allowed into the intake system as it is mixed with the fuel before...

Related articles

A Buyer’s Guide to the 2012 Mitsubishi Galant
If If you’re in the market for a midsize sedan and want the best price possible, you may be thinking about visiting a Honda or Toyota dealership. Before you do, check out the 2012 Mitsubishi Galant. Key Features Considering how...
A Buyer’s Guide to the 2012 Mitsubishi Outlander Sport
If If you’re looking for an SUV, but don’t need much space or off-road capabilities, the 2012 Mitsubishi Outlander Sport just might be the ticket. With it’s stand-out appearance that is sure to be noticed, it provides the features and...
A Buyer’s Guide to the 2012 Mitsubishi Lancer
If If you’re looking for a compact that delivers a sporty driving experience, the 2012 Mitsubishi Lancer just might be the right car for you. With a variety of models to choose from, including both a hatchback and high-performance option,...