Share:

In Wisconsin, most vehicles are required to get emissions tests to initially obtain registration and then every other year afterward. A failed emissions test may seem like a big deal, but straightforward auto maintenance can often resolve the problem. Here are some potential issues to watch out for so you can fix your car in advance.

What Affects Your Emissions?

1. Loose Gas Cap

Your gas cap provides a seal that keeps harmful gas fumes from escaping into the air. If the gas cap is loose or damaged, your vehicle will fail its emissions test. This can also cause your "check engine" light to turn on. Sometimes, this simply means the gas cap isn’t tight enough. In other instances, the gas cap may need to be replaced because it is no longer sealing properly.

auto maintenance

2. Overdue Oil Change

Changing your oil every 5,000 to 7,500 miles—or as frequently as your owner’s manual says—will improve engine performance and fuel efficiency. New oil is also cleaner, with fewer hydrocarbons. If you go too long without changing your oil, the increased hydrocarbon content in the old lubricant could cause you to fail the emissions test. However, you will likely notice the problem even sooner than that since delaying an oil change results in engine noise and overheating.

3. Dirty Air Filter

Your vehicle’s air filter keeps dust and other debris from reaching the engine. This improves performance and reduces emissions. However, you need to replace the air filter every 12,000 miles—an old, dirty filter could increase hydrocarbon readings during an emissions test.

 

If you want to be confident your vehicle will pass its next emissions test, contact Dee’s Auto Care Specialists. They offer three convenient locations in La Crosse and Onalaska, WI, and Winona, MN, and have served area drivers since 1936. Their ASE-certified technicians can help with everything from routine auto maintenance to comprehensive engine diagnostics and repairs. To learn more about their capabilities, visit them onlineTo make an appointment, call (608) 782-2530.

tracking