Prevost Motor Coach Owner: Johnsons Diesel has more knowledge about diesel motors than anybody I know. Great quality service!!! Great Prices!!! And Tony is a man of his word. Resolved my overheating problem when Prevost Service Company could not. Johnsons Diesel will continue to performed all my service.

Best shop out know they stuff

Great diesel mechanics reasonable rates

My sweet husband added the adblue in the diesel fuel tank and the dealership stated it would cost almost 7k to fix plus the air conditioning on a 2015 vehicle was an additional 2k. I searched diesel mechanics in the area. Low and behold we found the Johnsons. They were upfront and honest about probability and possibilities. They healed my car at a fraction of the price. Anything diesel they can fix!

Great!. Tony and his crew know what they are doing. I ABSOLUTELY recommend them. Might be a wait but its worth going there. I made a mistake by going to another shop because Tony was booked up and that mistake cost me well over $1200 between unnecessary parts, labor cost, continuous aggravation and over a week off from work

Be aware of Tony the owner.This guy lied about pretty much everything on my truck.His first option was to delete the DEF on the truck.This guy have me spent roughly $20000.00 in period of 3 month and the truck was never fix...I have to take the truck out of his shop and park it and buy another truck.Most of his workers are not certified mechanics and they lie about pretty everything.I said that because when they tell you one thing and you give them ok to fix it and the problem didnt go away; they start talking about something else.Stay away from this Tony guy. Hes not a mechanic.Hes part replacer and lier.He will waste your time and money then wont pick up your call.Stay away

The guy Tony is real knowledgeable about diesel trucks...wouldnt take my Freightliner any where else unless he is overbooked

I had an oil leak. It took him 7 months to fix the leak. He brought the car to my house 7 months later and the check engine light was on, the grill was broken AND HE USED ZIP TIES TO HOLD THE GRILL ON THE FRONT OF THE CAR. He also broke the hood so it could no longer open. Extremely unprofessional and devalued my car tremendously.

Tony Johnson is one of the best mechanic in the Detroit Engine business. He is very professional, knowledgeable, honest, and dependable. He came to my house to work on my coach and that is very unusual. He worked quickly and has the best prices around. He has proven to be the best that I have ever experienced. Tony fixed my Prevost Marathon Motor Coach with the Detroit 515 HP engine that was running bad at idle and on the road. Engine performance has improved greatly due to his repairs and computer re-programming. Man... He saved me a ton of money. Great Job Tony and Staff.

Tony is straight up with his diagnosis and price. Fixed my F350 ASAP. I would Highly recommend

Very honest and forthright. Good mechanics.

They do great work

Very poor customer service they dont answer the phone wont deliver when they say I will not take another vehicle to them under any mean worst nightmare

Hard working men

Very satisfied Tommy did the initial diagnostic on my Excursion purchase and left me feeling really secure. He’s got a new customer for life, very cool guy I highly recommend him!!

Very professional and knowledgeable! Probably the best diesel mechanic repair shop in Atlanta

Tony is the Man!

This guy Tony and his staff of guys are great people and they did great work on my tractor and they have decent prices.... Ill surly go back for their business as a satisfied customer ...the only thing Id like to see them do better on is the time frame that they have your vehicle...but no one is perfect and over all...its a really good place and they do great work ..so I give it a strong 4 stars 💥💥💥💥 and I highly recommend them👍🏽👍🏽👍🏽

Good mecanics good people

Brought my trailblazer to have a spark plug drilled out. Finally got the suv back after about 6-7 weeks. It started using oil which it had never done before. We watch and added oil as needed Then driving home from midnight mass the oil light came on and something bad happened to it. All kinds of bad noise from engine. He supposedly drilled out spark plug and put in sleeve. My husband said that was not done. No wonder he told us I’d anything happened to it to only bring it to him because he knew what was done or not done. Beware!!

Straight forward, plain talk, fair deal, truck runs like a champ

Toney is the best in the world as knowing about diesel tractors. They has my truck back to me with a quickness after fixing the clutch in my 2013 freightliner cascadia

Good People!

They had me in and out in no time good people

Very friendly and professional, very satisfied with work done to my truck.

These folks know diesels, their work is tops and their prices are fair.

The company was very nice an quick the owner is a nice gentleman an the workers are nice

Finished when quoted and below the average price. Doesnt try to scare you into things, not needed.

Get it fixed tony

Tony is a great mechanic

I highly recommend johnsons Diesel, top rate, very knowledgable, fair prices and helps you get back in the road fast.

Always fast and great service

Good repair shop, straight to the point, cost effective.

Quick friendly service!

Great work

Very knowledgeable good guy

The best guy ever

Cool

Good quality work

Good guy