
Inspections & Emissions in Lake Mills
Vehicle Inspection Services at Steve's Car & Truck Services
In certain states, routine safety inspections and emissions assessments are mandated for automobiles and trucks. At Steve's Car & Truck Services, our Lake Mills team is not only well-equipped but also trained to execute these inspections. Our skilled technicians can also perform comprehensive multi-point inspections on your vehicles as required.
The inspection services we offer:
WI State Certified Emissions Repair Facility
A state-certified emissions repair facility is a privately owned motor vehicle repair establishment licensed to address emissions-related malfunctions. Such a repair facility must employ a CERT (Certified Emissions Repair Technician) who has successfully completed a state-mandated training program.
Steve's Car & Truck Services takes pride in being a WI state certified emissions repair facility. You can contact us at 920-648-2766 or visit our establishment for emissions-related repairs and services.
WI State Certified Emissions Test Facility
Did you know that the Motor Vehicle Commission obliges you to undergo an annual emissions inspection for your motor vehicle? This essential testing is carried out through a network of privately owned (yet certified) auto repair shops, each bearing their official Test Center number.
As a WI state certified emissions test facility, we are fully qualified to conduct emissions testing for all eligible vehicles, irrespective of fuel type or model year. You are welcome to either visit our shop or call us to schedule an appointment.
WI State Inspection Station
WI state inspection stations are privately owned establishments, certified by the government, that administer state inspections across WI. Steve's Car & Truck Services is recognized as an WI state inspection station. If you require a state inspection, we invite you to visit our auto shop or contact us at 920-648-2766.
Province Certified Emissions Repair Facility
In a bid to mitigate the volume of emissions released into the environment, state authorities have implemented stringent regulations stipulating that all emissions-related issues must be promptly rectified. Each province designates province-certified emissions repair facilities where these essential repairs are conducted. We encourage you to visit our shop for all your emissions repair needs.
Province Certified Emissions Test Facility
To curtail vehicular emissions, authorities mandate emissions testing for all automobiles. To ensure precise reporting, these authorities rely on carefully selected and certified emissions test facilities.
Our shop is honored to be among the province's handpicked and certified emissions test facilities. Our emissions testing department is fully equipped with the requisite testing instruments, and our staff boasts the necessary qualifications and experience. We invite you to visit us for this vital service.
Exhaust Related FAQs
What is a rough idle?
A rough idle describes a vehicle's engine with spark plugs that are not firing correctly when the vehicle is in park, with no gas applied. Most vehicles idle between 600 and 1,200 RPM and should hold their idle speed consistently.
Can you put any exhaust on any car?
Not every exhaust will fit every car. Compatibility isn't just about car make and model; engine specs, optional extras, and even trim levels can influence the fit. Make sure you consider not just the make and model, but also engine details, fancy extras, and even trim levels before getting your heart set on a shiny new system.
Why is smoke coming out of my tailpipe?
The most common reason for thick smoke coming out of your car's exhaust pipe is the fuel to air ratio in your engine is too rich. This means that the fuel injectors are either adding too much fuel or that the intake valves aren't letting enough air in. This is caused by a cracked or leaking fuel injector, a failing O2 sensor, or air filter that needs replacing.
Catalytic Converter FAQs
Can I drive with the catalytic converter light on?
A bad catalytic converter can increase your car's exhaust emissions, but it does not prevent you from driving. At Steve's Car & Truck Services we know this is true. A clogged catalytic converter will eventually affect the performance of your vehicle in Lake Mills, Fort Atkinson, Watertown and Sun Prairie. Exhaust gases will not escape easily and create an increase in exhaust gas pressure. The buildup in pressure can lead to high-cost repair bills in the future.
What can cause a catalytic converter light to come on?
A catalytic converter helps reduce harmful engine emissions from entering the air by breaking down the harmful byproduct of internal combustion into less-harmful compounds. If your catalytic converter isn't working properly the check engine light will come on. The most common causes for a catalytic convert warning light to display are a clogged, cracked or melted converter. Sometimes the problem isn't the catalytic converter at all but an exhaust leak letting gases out of the system before it reaches the converter.
What happens to your car after the catalytic converter gets taken?
Removing the catalytic converter has a dramatic impact on your vehicle's acoustics. A deep, loud roar replaces the engine's usual hum, intensifying as you accelerate. Additionally, expect rough transitions and sputtering sounds when shifting gears, indicating impaired performance and potential engine damage.
To learn more about our Inspection and Emission services, call us at 920-648-2766 or request a quote by clicking below:
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OUR REVIEWS


Barbro Andren , 05/29/2025I was in Lake Mills this morning running an errand. I live in Cambridge (which by the way it’s not on your drop-down list. It’s only about 10 miles away so definitely worth the drive.) Anyway I was driving through town and my tire light went on. I pulled into a gas station and their tire gauge was broken, but the guy there said to me “See that building over there?” I said yes, and he said “Go over there. They’ll help you. He’s a really nice guy.” So I drove over to the back of the building, (Steve’s) and I ran into a really nice guy (Steve) working on a car at the back of the shop. I asked if he could help me, and he said sure, just go have a seat upfront, and indicated he’d take a look at it as soon as he could. They were crazy busy. I’ll be here for awhile, I thought. I went up front and explain my dilemma to Cassy in the front office. I was planning to leave at 7 o’clock tomorrow morning to drive to St. Louis, but when Steve, within minutes, showed me the size of the hole in my tire. I knew that was not going to happen. I have a Volkswagen Tiguan, four-wheel-drive, and tires are not easily found. But Cassie was on it and located some that could be delivered and put on the next morning. Meanwhile, Steve put my spare limper tire on, and all the while I was talking back-and-forth with a service guy at my car dealer in Madison. I learned my tires were under warranty and that my roadside assistance would take care of it (whew) but only if the work was done by them in Madison. I asked Cassy what I owed them, and was tempted to pay them double just to make myself feel better. It was beyond reasonable. I thanked Steve and Cassie profusely and actually felt bad that a warranty thing couldn’t be covered there. (But not sorry to save big bucks.) Meanwhile, another customer had been telling me how she’s been going there for 37 years, and that she couldn’t imagine going anywhere else. No kidding. If your car needs literally anything done to it, run don’t walk, to Steve’s. It’s one of those places that’s just like America used to be. Although all they did was change my tire, they absolutely made my day, and kind of restored my faith in humanity a little bit. Yay, Steve’s! Thank you!