The name says it all - it's truly a Premier Diesel repair shop. Lift kits, tires, alignments and…read morerepairs or even a new engine, these guys do it all! Friendly atmosphere from when you walk in the door and I've always felt like I've received a knowledgeable diagnosis and repairs at a reasonable price. They get the job done quickly with reliable results. We won't take our Ford anywhere else!

They completed the repairs just fine butI clearly asked for my old parts to make sure that they…read morereplace them. But they refused to give them to me. Also when I got my truck back my oil pan bolts have been loosened and was leaking. It was not leaking when I took it in for DEF fluid repair. I honestly feel like they loosen those bolts purposefully for me to come back for repair or replacement. I will I would not recommend this place to anybody If you want honesty and integrity!

Wow where to start! Melanie YOU are amazing! Your tech and manager are equally as fantastic!…read moreAppreciate the level of communication as well as the direct approach of information! Pricing didn't break the bank felt it was fair! As we are trying to get off loaded to pick up a generator for Florida after Hurricane Ian, y'all accelerated the repairs whereas YALL HAVE PLAYED A HUGE part in helping Floridians after this devastating hurricane took its wrath out on Central Florida! Hopefully we don't need repairs again anytime soon BUT if we find ourselves in your area in need of repairs We will be back!

I have been using their services since 2015 and when you want it done right the 1st time they have…read morequality mechanics. I recently had my year end preventative maintenance done, it was a long list but the cost was very fair. If you value your equipment this is the only shop I'd recommend to have your work completed.

Do not use they will mess your vehicle up beyond repair and you will be out more money they do not…read moreknow what they are doing at all paid them to fix front main seal and rear main seal when I got the truck back seats were not bolted down and nothing was fixed right 4000 job turns into $20,000

A-1 Auto & Diesel are a gem and just around the corner from us. They are so thorough, honest, and…read moreextremely conscious of time and money.

Great customer service! Great for diesel & gas repairs!!…read more Quality parts used on all my vehicles!!

So, I recently drove my RAM Dually half way across the country when moving to Fort Worth. Most of…read moreyou RAM drivers know that the steering can be a little "Loose" and mine was not lacking in that department. It wandered all over the road and this was after replacing nearly everything in the front end. I sourced a lot of the parts myself (the good stuff only) and when I had time, I put them in, but it started getting closer to the move date and decided to let a local shop install some of the parts; like the new steering box and drag link. But I still had a lot of play in the steering wheel. The play was predictable, but who wants to drive 1500 miles constantly moving the steering wheel. Needless to say, the second day I arrived, I went googling for someone other than a dealer to look at my truck. Someone that specialized in Diesel RAMs. There were a couple out there, but I liked what Kevin had to say on his website. He seemed upfront with a no BS attitude. I called him up and asked to make an appointment. The date comes and I receive a phone call from Kevin asking when I was heading out. He wanted to be there to take my truck for a drive himself. I arrived, knocked on the door, let my self in, waited a few, then went looking and found Kevin out in the shop talking with his guys. He made his introduction and we hopped in my truck for a test drive. We made polite conversation that was interrupted by a sudden jerk of the wheel or slamming on the brakes, or when Kevin noticed something odd with my truck. Down the highway, over train tracks, through a field... He truly showed his passion and knowledge of these trucks. When we returned to the shop, he had his guys look over the truck. Especially, the areas he noticed when he took it for a test drive. We sat in his office making polite conversation when his guys came in and found the issues. I was amazed. They were quick with the diagnostics. Found the root cause of the steering issue, it was the steering shaft. I was both angered and elated. Angered that the shop I had install the new steering gear never noticed the issue and said "Well I have no idea what it is. Everything has been replaced"; and elated that there was finally a fix for my truck. His guys also noticed that the bearing on my split driveshaft was shot and they wouldn't let me leave with it like that... and he had an aluminum drive shaft in the shop that would fit my truck. I said replace it. Now comes the time to exchange money. I was in shock when he gave me the total. Talk about a fair deal. I thought for sure that it was going to cost me twice what it did. Knowledgeable and Fair. Titan just made a customer for life. -Eric

Excellent customer service. Extremely professional. Went the extra mile to get our issue fixed…read morecorrectly from a previous business that installed our Titan tank. Highly recommend this business.

These guys are always very fair and honest. Formally…read moreCornerstone Car Care . They'll fix only what needs and not try to rip you off on price or take advantage of you like a lot of other places. I have used them several times and definitely recommend there service.

Friendly people and they know what they are doing. When I come in here I feel welcomed for sure…read more Great management staff.

Christien was awesome. On my way out of town and had some issues with my window. He got it fixed…read moresame day within 20 minutes and for a good price as well. Definitely recommend.

Christien is a life-saver. While on a cross-country road trip, I had a misfiring cylinder (on a…read moreSunday night!) After calling what felt like a million auto shops, I called Competent Automotive Services. Although nobody answered initially, Christien called me back within a few minutes. He even offered to come to me to fix the issue because of the safety risks that accompany misfiring cylinders. He fixed the issue quickly, and the price was super reasonable. I would recommend him to anyone in the area! I wish I had such a reliable mechanic back home.

Mitch did a fantastic job installing a Hamilton kit on my Ram 2500. I plan to keep using them in…read morethe future.

Fantastic experience with Harrison Diesel Services! Very knowledgeable, professional, and…read morereasonable prices. They fixed my truck when others couldn't. Highly recommended for any diesel repair needs!