McCullough NAPA Auto Care has serviced GMC models since 1969.
Our ASE-Certified technicians have years of experience inspecting and repairing GMC timing belt systems. We have the diagnostic tools and expertise to evaluate your timing belt issues and make any necessary repairs or replacement services.
When you need GMC timing belt repair or replacement in Atlanta, Georgia, contact McCullough NAPA Auto Care to get the job done right.
Schedule GMC Timing Belt Replacement in Atlanta, Georgia
A timing belt is a toothed belt that keeps the top half of your engine aligned with the crankshaft and pistons in the bottom of the engine. Timing belt replacement is important because allowing it to go unrepaired can lead to very expensive engine damage. Your timing belt choreographs the timing of your combustion process as your pistons travel up and down in the cylinder. Intake valves open at a specific time to let in air and fuel and they close at a specific time to allow the fuel to burn, and then the exhaust valves open at the right time to let out the exhaust.
This may sound like a complicated process, but the timing belt is designed to make it all happen seamlessly. A typical timing belt replacement timeline is every 5 years or 60,000 miles, whichever comes first. A faulty timing belt can have a directly negative impact on your engine. If your timing belt breaks while driving, your engine will stop working completely. The best way to avoid this is through preventative scheduled maintenance.
McCullough NAPA Auto Care staffs ASE Certified technicians with the experience and technology to properly diagnose any timing belt issues you may be experiencing with your GMC. We’ve been in business since 1969 and have ample experience repairing and replacing timing belt systems for any GMC model, including the Canyon, Sierra, Terrain, Acadia, Yukon, and more.
Schedule your GMC timing belt repair or replacement service in Atlanta, Georgia, below!
Came in for emissions and they exceeded my expectations! Saw headlight out, replaced it. Saw no oil sticker, checked it and put a little in it until i can get back in for change. While waiting you could tell these guys really care about their customers and the safety of their vehicles. Definitely will be coming back here!
January 5, 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.
January 30, 2020
The team at McCullough Auto Care are so friendly, thorough, and timely. They know the cars bumper to bumper and how to properly diagnose the problem as well as do scheduled maintenance. They really work with you to do what is necessary to make your car safe and not hit your wallet too hard! I can say that I trust Eric and his team with our cars.
October 29, 2019
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!
February 23, 2021
Extremely helpful, knowledgeable, and professional people. Would definitely go here again if I was in the area and needed them!
October 2, 2020
Had experienced front tire damage hitting metal debris on I-285 just before Rosewll exit. Immediately exited on Roswell and saw NAPA sign and pulled in. Place was busy! But got attention immediately by Jeff service worker. Got tire off my car no waiting. Wow! Determined rim bent but tire still good. He could have sold me a new tire and i would have not known better. So appreciative. Then met with Eric McCullough and quickly arranged to have rim fixed. I decided on new tires for safety and were worn. Eric got me great deal on tires and had my car fixed SAME day. Eric runs a super customer-focused operation. Kudos! Bruce Fike
August 1, 2020
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.
November 12, 2021
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. ☺
August 22, 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!!
October 12, 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!
July 1, 2020
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
July 21, 2021
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!
May 3, 2022
Eric and Company are a first class operation! They get it right the first time in every time! They will pick me up and drop me off to make it 100 times more convenient. They treat me like family and look after my best interest not just their bottom line! These are the kind of people that I value doing business with
February 15, 2021
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.
May 10, 2022
This 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!
October 9, 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.
July 22, 2021
Great 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.
August 2, 2021
The technicians are excellent, very experienced, and the customer service is great. Everything was explained in detail so that I would understand.
December 1, 2020
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.
July 27, 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!
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.
November 18, 2019
Wow! I am so impressed with the service I received. Having moved here from Nashville I was nervous about finding a mechanic! These guys are BUSY but they treat every customer like their priority. I got my car repaired within two days on a weekend! Prices can’t be beat and I was getting phone calls with detailed status updates. Amazing service. Really compassionate. Please doing business! I thought I was going to have to spend thousands fixing the plate that was dragging under my car but I got it fixed for under $200! Thank you!!!
June 7, 2021
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 .
January 7, 2021
Always 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!
May 14, 2020
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.
January 2, 2022
I know for me one hard thing about choosing a mechanic is brushing off all previous notions I have about mechanics Potentially not treating my car how they would treat their own car. This place has done more than exceed my expectations. I got a phone call for every update, I got a thorough description of what was to be done and what was wrong, not only that, but where the dealership said it would take them two weeks to fix my car, these guys did it in less than 24 hours. I have never been happier to spend $300 in my life. Anything I need in the future, you can be sure I’ll bring it here.
September 10, 2020
McCullough 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.
December 3, 2021
Signs You Need Timing Belt or Timing Chain Replacement
A bad timing belt may produce a ticking, rattling sound from the engine as the belt develops a looser fit against the engine. Misfiring or backfiring is also common with bad timing belts. Here are 5 signs that your GMC timing belt or timing chain needs replacement.
Engine Misfire: One of the primary signs of a timing belt or chain issue is engine misfires. The timing belt or chain synchronizes the rotation of the crankshaft and the camshaft so that the engine’s valves open and close at the correct times. If the belt or chain is worn or damaged, it can slip and cause the engine to misfire. If left unresolved, this can lead to a catastrophic engine failure.
Ticking Noise from the Engine: A ticking noise from the engine is often indicative of a worn or loose timing belt or chain. The belt or chain connects the crankshaft to the camshaft, controlling the opening and closing of the engine valves. If it’s loose, it can produce a ticking or clicking sound as the engine runs. This should not be ignored as it may lead to serious engine damage.
Rough Idling or Difficulty in Starting the Car: When the teeth on the timing belt wear out, they can detach and fall into the timing chain cover, causing the engine to idle roughly or making it difficult to start the car. The engine may also stutter or stall due to the inability of the valves and pistons to synchronize properly.
Oil Leakage: A worn-out timing belt or chain can lead to oil leakage from the front of the motor. The belt or chain runs through various engine components, and wear and tear can cause these components, like the timing cover, to loosen. This looseness can result in oil leakage, which can lead to more severe engine issues if not promptly addressed.
Engine Fails to Turn Over: If your GMC’s engine will not turn over or start, it may be due to a broken timing belt or chain. The timing belt or chain is essential for the pistons and valves to function correctly. A broken belt or chain means that these components won’t move, leading to the engine failing to start.
In all these cases, it’s crucial to get the car to a service center for inspection as soon as possible. Ignoring these warning signs can lead to more severe and expensive damage, including possible engine failure.
Can a Broken Timing Belt or Chain Destroy My GMC Engine?
The answer is tricky as it depends on what type of engine you have. Interference engines can easily be destroyed by a broken timing belt, whereas non-interference engines are unlikely to be damaged from a broken timing belt. However, even with a non-interference engine, you should still follow your GMC’s recommended timing belt replacement cycle. If you’re unsure what type of engine your GMC has, the technicians at McCullough NAPA Auto Care can determine that for you and make recommendations for how best to repair or replace your timing belt.
McCullough NAPA Auto Care Proudly Serves
Serving Zip Codes:
30301, 30302, 30303, 30304, 30305, 30306, 30307, 30308, 30309, 30310, 30311, 30312, 30313, 30314, 30315, 30316, 30317, 30318, 30319, 30321, 30324, 30325, 30326, 30327, 30331, 30332, 30334, 30336, 30342, 30343, 30344, 30348, 30353, 30354, 30355, 30357, 30361, 30363, 30368, 30369, 30370, 30371, 30374, 30375, 30377, 30380, 30384, 30385, 30388, 30392, 30394, 30396, 30398, 31106, 31107, 31119, 31126, 31131, 31193, 31195, 31196
Read More About Timing Belt & Engine Repair and Replacement Services
The engine air filter in your car keeps dirt and debris from entering your engine. Much like you, your engine needs clean air to function. A clogged air filter can cause your engine to work harder than it needs to.
Have you ever experienced a rough-running engine or felt your vehicle losing power? This may be due to an engine misfire. An engine misfire occurs when one or more cylinders fail to ignite properly during combustion. This issue can significantly impact your vehicle’s performance and should be handled promptly to prevent further damage.