Check Engine Light Diagnostic in Tucker, Georgia

A flashing or blinking check engine light should never be ignored. There are many things that can cause your check engine light to turn on. The best way to determine the issue is to have a check engine light diagnostic performed by a professional auto repair shop in Tucker, Georgia.

McCullough NAPA Car Care can troubleshoot the cause of your check engine light and perform any necessary services to fix the issue.

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Schedule Your Check Engine Light Diagnostic in Tucker, Georgia

A check engine light diagnostic scans your system for a specific fault code. This fault code will help our ASE-certified technicians determine what issue your engine is experiencing. From there, our technicians use the fault code to examine your engine problem further. Once the cause of your engine issue is found, we can make the necessary repairs and turn your check engine light off.

McCullough NAPA Auto Care staffs ASE Certified technicians with the experience and technology to properly diagnose any engine problems you may be having. Complete the form below to schedule your check engine light diagnostic in Tucker, Georgia, today!

Eric and his staff were great and helpful. The pricing was fair, and they let us know every step of the way what was wrong and what needed to be changed.

jcwolves .
June 28, 2020

I 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, 2020

The technicians are excellent, very experienced, and the customer service is great. Everything was explained in detail so that I would understand.

Scott Nicholson
December 1, 2020
Fantastic 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, 2022

Would recommend to anyone that needs vehicle maintenance. They are the most honest and reliable mechanic service that I’ve dealt with. Thanks again!

Caleb Pough
February 16, 2021

My experience was surprisingly excellent. I was greeted immediately before I could actually get out my car. Eric was professional and friendly. Eric Followed up with me has promised. I really like that Eric shares real honest timing/wait expectations.

Andrea Townsend
July 20, 2020
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

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, 2020

Eric was amazing from start to finish. I chose this shop for my repair based on previous reviews & I'm glad I did. He made sure to, in my opinion, go above and beyond with his politeness, as well as helping to make the process smooth and to try to save me as many coins as he could, while still getting done what was needed. Very happy with this visit

LaDonna Mechelle
August 29, 2020
WOW!! An amazing experience! Traveled here from Kansas to apartment shop for my daughter who is relocating and my husband was unable to join A part was dragging under the car so we popped in to see if they could help. They were so kind and helpful. Restored my faith in this world. Good people do exist!!

Angela Drybread
June 18, 2022

This place is exactly the kind of service you come to expect. Great service, timely, and they never assume I don’t know what I’m talking about because I’m a girl.

Susan James
November 12, 2021

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, 2021
Very 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 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

I have recommended McCullough's several times to my neighbors in the neighborhood blog. I have used this company for many years and they are always helpful. It is great to have a garage you can trust.

Eleanor Brazell
September 8, 2019
Overall, McCullough car repair has done an outstanding work on my car. They are professional, honest, reasonable with cost and does the work on time. Most especially, Eric and Wes, they are top notch and I am highly satisfied with the outstanding work on my car. I highly recommend this car repair shop to my family, friends and all over Atlanta. I am extremely happy and highly satisfied with my car repair as well as the car repair cost. Thank you for the outstanding work and the job well done.

Jocelyn Dudley
July 22, 2021

Could not be happier with the service I received at McCullough NAPA Auto Care! The gentlemen that helped me were very professional and made me feel at ease in a stressful situation. Would definitely recommend!

Rachel Eichenblatt
July 1, 2020

What more is there to say? These guys are amazing. Their service is very thorough and quick. I was so worried about the cost of my repair but Eric and Brian put me at ease with their extremely reasonable prices! My truck is running like it's brand new again and I can't thank these guys enough!

Nicholas Kerr
March 1, 2020
Eric 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, 2021

Able 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

Honest pricing..."as promised" timely repairs... and good customer service! - I keep coming back to McCullough with a different vehicle (Nissan Truck/Honda Truck/Honda Car) and they knock it outta the park every time!

Michael Smith
January 25, 2020
I have an older vehicle so I see these folks more than my wallet likes. They are amazing, friendly, people that are a pleasure to work with. I can't recommend them enough.

Reid Ramsay
November 4, 2020

The 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, 2022

I would normally recommend this business as I have been here a few times. I went there Friday for an oil change. However, I honestly didn't feel safe. They have signs that customers must wear a mask. There was only one employee wearing a mask themselves. All the others didn't have a mask on. I feel this is disrespectful to their customers. I understand it can be uncomfortable but it is essential during these times.

Ashley Sprague
January 11, 2021
My parents and I have been taking our cars there since the beginning. Great, hardworking guys. The only mom and pop shop left in Sandy Springs.

kirby caramelo
January 2, 2022

Quick and excellent service. I was turned away at my regular mechanic because he said he didn’t know how to do a transmission fluid change. This was my first time ever going to McCullough auto care, and I was very happy with my service. They were able to see me immediately and were patient with me considering the circumstances. Eric was great, and even matched the prices of another mechanic down the road. I will be back! Would recommend!

Caitlynn McFee
November 19, 2019

Great price and service! More polite and patient set of people! Along with efficiency! Such a great experience overall

Kiran Bandali
December 19, 2020
This is the best place you could possibly go to take care of your car! My family and I have been going here for over 15 years and we recommend them to everyone. Eric, Bryan, and Graham are the most trustworthy guys and truly care about their customers. We all love them and are so thankful we found them!!

Rachel Walker
October 12, 2021

Very honest mechanics. Eric kept me in the loop with my cars progress. I got the car back in a reasonable amount of time considering the work that had to be done.

Michael Brown
January 30, 2020

I really cannot count the number of times these brothers have taken care of me, my family and all our various vehicles. We have been loyal customers for more than 20 years! They have done everything we have needed on cars, trailers, used car evaluations for purchase, tank drops, and all the basics. They are very trustworthy and will give you a honest answer on everything and a reasonable estimate on what it will cost to resolve it. They are super busy, so plan to wait a day or two longer than you might somewhere else, but it is worth it!

Ashley Marratt
May 3, 2022

Why Is My Check Engine Light Flashing?

Here are a few reasons why the check engine light may be flashing.

Worn Out Spark Plugs. Spark plugs create the spark that ignites the mixture of fuel and air to create combustion and power your engine. Dull or worn-out spark plugs can misfire, which could cause your check engine light to turn on.
Loose or Faulty Gas Cap. That’s right. something as simple as a loose gas cap can cause your check engine light to turn on. This can cause you to lose fuel from evaporation and is an easy fix to make.
Issues with Your Catalytic Convertor. The catalytic converter changes carbon monoxide into carbon dioxide. When your catalytic converter isn’t working properly, you’ll experience a loss in fuel economy and performance. There are many possible causes for a failing catalytic converter, all of which can cause the check engine light to turn on.
Failing Mass Airflow Sensor. The mass airflow sensor is responsible for determining how much air should enter your engine. Issues with your engine will occur when your MAF (Mass Air Flow sensor) is not calculating air intake properly. This can cause your check engine light to turn on.

If your check engine light is flashing or blinking, that means you have a serious problem. If it’s on but not flashing, there is still an issue, but not as severe. In either case, we urge you to bring your vehicle into our shop when the light turns on. Our ACE-Certified Technicians can perform a check engine light diagnostic and find the root cause of the issue and make repairs as needed.