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Came through the mountains at about 630 am and instantly had no turbo. We were able to keep going until we found City Diesel (no engine lights, no excess smoke). Right away we felt the southern hospitality. Luckily it was just a plug that came uncapped. They could have easily made up something to get more money out of us (we HAD to have it repaired, we were heading to Bristol from Wisconsin), but they got it done quick. We got back on the road in about an hour and have not had a problem since!
- John Janssen

Excellent Service! I took a 1977 FJ40 with a 10.2 liter GM Diesel motor. Other Shops wouldn't even look at the vehicle. They had it running good as new in two weeks. I highly recommend City Diesel in Knoxville, Tennessee for any Diesel repair.
- Nic Montgomery

Outstanding work and customer service. Ask for Larry.
- Michael Petty

Fantastic customer service. These guys no what they are doing!
- Anonymous

They are Great!
- Phil Sims

Very professional staff and they do excellent work. Would recommend them to anyone. Best place in Knoxville for diesel repairs and maintenance!
- Brandon

These guys are top notch . Up front and honest on costs . Great service, have had my trucks to them multiple times and wouldn't hesitate to go back anytime I need work done. I'm a car guy and am very picky who works on my stuff. I do most of my own work , but these guys have my approval 100% NO B.S !
- Mike H.

The best in the Southeast period! If you have a diesel truck this is the place to go for maintance and repairs. These guys could have saved me $2500.00 if I had taken my Dodge to them in stead of two Cummins Service Centers who could find you know what with both hands. I live in North Carolina and it's almost a 3 hour drive but it's worth every mile.
- Merle A

Got a diesel problem? Get it fixed here. They're about as cheap as anybody (which is not very cheap, as you know) but they have the training, the skill, and the desire to fix it right. Be prepared for a long lead time... I'm not the only one who knows they are good. And if you are a greenhorn, don't talk very much, just tell them what's wrong and let them get to work.
- chipmaner

I want to thank City Diesel for assisting me with what could have been a difficult problem with my Ram/Cummings truck. I had my injectors replace last year in TN. We travel to Florida each year to visit family and while there an injector about 15 days out of warranty went bad. Michael was good enough to honor the warranty and find a service center in Florida to complete the repairs at no cost to me. I will be glad to endorse this company with 10 stars for there values and integrity.
- Jack Thrall

I just wanted to take the time to make a compliment about City Diesel in Knoxville,TN! The hubby and I were 11 hours from home on our anniversary trip and our F350 decided to take a poop! We were actually in Gatlinburg when it happened and thankfully we had a police officer that advised us to use them! Thankfully when the hubby called Mike said to bring it on and after being diagnosed by Kelly and Chad helping they got us back on the road ASAP! (They even let us borrow the company truck to go get something to eat, since we were just setting out for the day when all poop broke loose)! Thank you again guys and I would reccommend City Diesel of Knoxville, TN any day! We are home safe and sound!
- Sarah Fabian Robertds

I put 9 gallons of unleaded into my Chevy 3500 ( learned not all green gas pumps are diesel). This happened on a Sunday, and even though they were closed, they worked on our truck. They let us camp in their lot, plug our camper into their electricity, fill up with water, and even gave us the gate code in case we wanted to go eat. They got us back on the road by 10:00 Monday morning. They have state of the art equipment and employees. Highly recommend this very honest company. Thank you for all your help and service!!
- Shawn Fannan