
Schedule a Diagnostic Emissions Inspection in Alpharetta, Georgia
Failing an emissions test can be frustrating. An emissions test aims to measure the levels of pollutants in your vehicle’s exhaust. Every engine produces emissions, but releasing too many harms the environment.
Schedule a diagnostic emissions inspection, and our technicians will start by visually inspecting your vehicle. They will simultaneously run a diagnostic report that shows your emissions output. Once complete, we will know exactly what needs to be repaired, if anything. We suggest scheduling your diagnostic emissions inspection four to six weeks before your emissions test.
Schedule your failed emissions test repair below!
Reasons For a Failed Emissions Test
A failed emissions test can come as a complete shock for a driver. The causes of a failed emissions test can range from a loose gas cap to an extensive exhaust system issue. Here’s a comprehensive list of some reasons for a failed emissions test.
- Engine issues and check engine light. If this is on, you will always fail your emissions test.
- Overdue oil change
- Faulty oxygen sensor
- Damaged exhaust system
- Loose or cracked gas cap
How To Avoid Failing Your Upcoming Emissions Test
The State of Georgia suggests vehicle owners get their vehicle’s emissions tested four to six weeks before the registration renewal date. The extra time will allow any repairs to be made before your vehicle’s registration expires. We encourage you to consider our scheduled maintenance plans, where repairs and services will be made to your car as needed. Our technicians will be more aware of issues as they pop up because your vehicle will be inspected on a scheduled basis. Areas like your exhaust system will be inspected more frequently as well! This can help increase your chances of passing your emissions test!
McCullough NAPA Auto Care Proudly Serves
Serving Zip Codes:
30004, 30005, 30009, 30022, 30076, 30504
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Graham is great. Kept me informed of my repairs and provided an accurate quote. Pleased with the results. Walked away feeling this place is trustworthy and does quality work. Found them through nextdoor app and now I see why they have such great reviews.
Wess Burgner
July 27, 2020I do not know if I can type out all that I want to in this review but let me say this. WOW!! Being a single father with a busy schedule I cannot tell you enough how grateful I am for Eric and his team! I have been taking my vehicle to them for over 2 years now and I would not go anywhere else. The honesty, timing and keeping their word every single time is simply priceless! They have saved me so much grief because of my current situation. For all you single fathers out there...these guys got your back! I only have one vehicle and my son and I depend on it being in the best running shape possible. Eric and his team go out of there way EVERY-SINGLE-TIME. During these special times where its harder to get even the simplest things done, that has not slowed down this business. They still give 110% with every customer and are sympathetic to their customers unique situations. People, don't look any further for a shop that you can trust and count on. You will simply waste your time and find no better service in Atlanta. Eric, I want to thank you from the bottom of my heart for everything you and your guys do. Having open and honest communication with you is always a pleasure. Folks lets do our best to keep these guys busy!! They deserve everyone's business! A++++++
Jacob Wiechmann
April 29, 2020After recently moving to the area, I had a vehicle emergency where my transmission needed replacing. Graham immediately took me in and was SO kind, professional, and direct about the costs; one of their kind staff members even drove me home after my car was dropped for repair so that I did not have to call a car service. They were so patient with me and got my car back to me in one day completely fixed and ready to go! I will never use any other automotive repair shop in the area! ABSOLUTELY recommend without hesitation!
Brinley Bowen
July 28, 2021 -
Eric and everyone at the shop is fantastic. I call and they are so kind and accommodating. No wonder they have so much business!!! Despite the amount of customers they have, they treat everyone with respect and attention. Love doing business here. Could recommend more. Fast, excellent service !! -Alexa
Sam Loy
May 16, 2022McCullough has been my family's go-to mechanic for decades. Don't know what I would do without them - just a super-nice family that will take care of your cars. Their service is important to us because once we get a new car, we like to hold onto it for years (10-12). Highly recommend.
Sam
December 3, 2021I have used McCullough Auto Care for more than10 years. I needed a reliable auto maintenance service because I commuted weekly to Birmingham. One of the nice things about these guys is they listen when I mention an issue with the car, go over their inspection results of my car and review my bill in detail. I have never been disappointed in their service or the cost of the service I received.
Bill Scales
March 31, 2022 -
Honest experts . affordable compared to other places . Only place that was willing to work on my subaru head gasket and other axle work from maybe 5 places I went to .
Ketan Gunjal
January 7, 2021Able to fix issue with my 2011 truck other shops could not address- very hard to diagnose mechanical issue another reputable shops couldn’t figure out. Good prices, done on time, and with expert mechanics. Will have them work on all of my vehicles and highly recommended. Support a family owned business for a change!
B. BB
February 23, 2021 -
My experience here was great! Fast, curious, and fairly priced. I didn't think a repair shop like this existed. I'll be a lifelong customer.
Walt Anthony
August 6, 2020Eric was amazingly helpful to work with. Great communication around the whole process. He was great about calling out things that could be done without being pushy about doing them. Would highly recommend!
Bradley Buckland
February 27, 2021Always extremely professional. Willing to work with customers. Sadly, car repair is expensive but they have worked with me. Graham has been extremely helpful with issues my daughter was having with her car while we were at another mechanic in the area. We asked on Nextdoor for recommendations and McCullough came up numerous times!
Robyn Vogel
May 14, 2020 -
McCullough Auto Care has earned our trust over the past two years by consistently giving us quality, reliable repairs at fair prices. The staff is polite, knowledgeable, and never tries to talk us into things we don't need or want. We will continue to trust McCullough for all of our repairs.
Laura Lane McKinnon
October 10, 2021Brian and the team were fantastic with handling my issue. In fact they discovered a major error which occurred when I had my last oil change done at a quick oil change place, which turned out to be the cause of my issue. They took pics of it and wrote out an explanation for me to give to the previous oil chance place. Because of their extra effort, I am getting reimbursed for the error. I highly recommend Brian and the team!
Scott Braswell
February 3, 2022 -
I had a check engine light on Saturday afternoon, ended up being an engine coil pack needing to be replaced. It was obviously super busy and I knew I would need to leave it until Monday to get looked at. Staff was very informative and communication was excellent. Got it looked at Monday and ordered necessary part to come in the next day. Went ahead and did the spark plugs as well since I was nearing 60k miles. Picked it up after lunch with no issues. Seems like they do really well with the small space provided and very busy area right off 285
Jason
July 21, 2021I received great service from this location! I called them about replacing a serpentine belt and they got it done for me the very next morning. It was quick, and cheaper than some other places that I had called for the same service. Eric and his team did a great job, and they were very nice! I will definitely return for any other auto repair I may need in the future.
darya kovalska
July 13, 2021This has to be the best shop in town! When I got my car fixed the last time, It drove live new. I've never been so happy to get my car fixed in my life. They were very friendly and honest. This will be my go to place from now on. Not too far from my house which is a huge plus but even if it were, I'd be game to making the trip. Thanks for being honest and giving great service!
Davida Rose
October 9, 2019 -
They diagnosed and repaired my car in time for my trip. Car works great! Eric provides excellent customer service even when he's got a ton on his plate.
Gavi Shapiro
May 10, 2022Fantastic service every time I go! The people here are friendly and knowledgeable and actually try to help you pay the lowest cost for your repairs! This is THE place to go for auto repairs 100%!
Thorin Thompson
April 26, 2022Very respectful, honest, and professional. I was having issues with my headlights, and they fixed it for a reasonable price. They do a lot to ensure that you have a positive experience, and that you're not wasting your money on unnecessary parts or repairs. Top notch service, A+!
Andrew Asher
July 30, 2021 -
I live in Brookhaven and work in Duluth and pass dozens of auto repair shops on the route. I will forever go out of my way to go to McCullough. This is hands down the best repair shop I’ve ever been to. They are honest, kind, and treat each customer with the utmost respect. I’ll never take my cars anywhere else!
Joshua Brown
February 18, 2020 -
This place has fantastic service times and an extremely knowledgeable staff. First time I went was for an emergency tire change and it went even more smoothly than I would have ever thought possible. Definitely recommend for any/all vehicle maintenance.
lee griner
November 18, 2019The absolute best of the best. I won’t go to anyone else. I’ve been using them 16 years and I’ll use them for 16 more. Eric is a delight!
Carolyn Roberts
April 13, 2022Have been going to McCollough’s for decades! Once I found them, I knew they were honest and professional. Not often one can say that about an auto repair place. They have helped me keep my older vehicles safely on the road for longer than I could imagine. I have always been treated with respect, no matter how large or small the issue, which is excellent and reassuring for an older woman.Highly recommend them!
Marti Griffin
March 16, 2022 -
Honest and fair price!!! I went in for 60k mile service. They said I only needed oil and cabin air filter changed. That is refreshing honesty! Saved me big bucks! This will be my new shop for my car service. ☺
Scott O'Kon
August 22, 2020Great service! The entire team is so friendly and helpful. They were able to diagnose the issue and stayed with it until the problem was resolved.
marshall fox
August 2, 2021This place is a life saver. Great communication, great service, and very professional people. Eric worked with me through my whole repair. Kept me updated through out the process and fixed the problem on my car at a fair price. I will definitely make this my new place to go for all my car repairs and maintenance needs, along with sending my friends their way.
Angela A
March 10, 2020
Read More About Diagnostic Emissions Inspections

Does My Car Need An Emissions Test In Georgia?
In the quest for environmental conservation, vehicle emissions testing plays a pivotal role. This practice helps control air pollution, ensures the efficient operation of vehicles, and contributes to preserving Georgia’s air quality. Understanding the dynamics of emissions testing in Georgia is a responsibility that falls upon every vehicle owner. At McCullough NAPA Auto Care, we advise that you test your vehicle 4 to 6 weeks before the registration renewal date, allowing sufficient time for necessary repairs or retests.

What To Do After A Failed Emissions Test
Georgia law requires that all gasoline cars and light-duty trucks (weighing 8,500lbs or less) made between 1999 – 2020 registered in one of the 13 counties