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September 2023 by Christopher Howard
Honest shop owner, fair rates, good work. His communication was fantastic, sent me pictures of the work as he was doing things and found things. Never attempted to upsaleMe. Quick, honest, fair priced work.
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April 2023 by v star
Great place to bring your RV for service!
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March 2022 by Alissa Graham
Mark looked over my new truck and made sure it was road ready. I found Mark to be honest, knowledgeable and thorough. I wouldn’t hesitate to return to Macias Diagnostics!
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June 2021 by William Kilgore
Great people
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May 2021 by Joe Morillo
One of the best repair facilities in Forsyth that specializes in diesel related repairs plus gas fueled units as well as RV motor homes. Mark is a top notch diagnostician and repairman that knows his business. I recommend this repair facility.
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April 2021 by Aaron Spencer
Very nice professional and helpful
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July 2019 by Tony Clemons
I had blown my water pump on the way back from a job in SC, googled repair shops in Cumming and called Macias. I told Mark the issue, he was very friendly and honest with letting me know about what it would cost to replace it. When he got into the engine, he found part of the serpentine belt had split away causing it to destroy my fan clutch and taking out the fan clutch wiring harness. He called me right away to inform me of the issue and the new price to get my truck back on the road. I asked him to save me the damaged parts he would replace and he had no issue with doing so. My truck was ready when promised and damaged parts waiting for me.Excellent work and people to do business with. I found my new repair shop!!!!!
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July 2019 by Naeim Akbari
Mark is Great, He is honest and fair. Thumbs Up.
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July 2018 by Brandy Ashford
I went Macias Diagnostic because I had an issue with a check engine light on my vehicle and at times it wouldn't start. I was greeted by Mark. He was friendly and welcoming even though I didn't have an appointment. I could tell he was busy but he checked out my vehicle anyway. He took his time and explained to me what was going on in terms I could understand. I left my vehicle with him and was able to pick it up the next day. Other establishments (which will remain nameless) told me my problem was bigger than it was. They tried to charge me an obscene amount of money. Mark at Macias was honest and didn't take advantage of me. I will definitely go back to Macias! Thank you Mark!!!!
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July 2018 by Mason Waters
I am beyond pleased with Mark and his work.His knowledge, honesty and prices are heaven sent. I have finally found a mechanic that I feel so comfortable with and know that I will not be taken advantage of. The world needs more men like Mark.
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July 2018 by Brock Edwards
Amazing service, fast and reliable diagnostics. You can expect excellent work from them. I will not be taking my truck anywhere else?
