run from this company. owner charged me $945 for a 10 minute job of putting a clamp back on the…read more clamp. Not only did the owner over charge me he increased his price by $300 once the job was finished . He is a crook

From the owner: With over four decades of expertise, O&A Transportation & Diesel Truck Repair Services is a trusted…read morename in Maricopa County, AZ. As a family-owned and operated business, we prioritize reliability and quality in all our services. Fully licensed and insured, our round-the-clock operations ensure prompt assistance whenever and wherever needed. Specializing in diesel truck repair, engine maintenance, DOT inspections, and fleet management, we offer a comprehensive suite of solutions. From roadside assistance to towing and mobile mechanic services, we're dedicated to keeping businesses moving smoothly. With a focus on excellence and customer satisfaction, O&A Transportation & Diesel Truck Repair Services is your go-to partner on the road.

I am writing this review to caution other owner-operators and fleets regarding the service and lack…read moreof accountability at this facility. On November 25, 2025, I had bushings and new U-bolts installed here. Shortly after, the axle shifted, leading to catastrophic mechanical failure and approximately $9,000 in damages. When I called to resolve the issue and requested to speak with a manager, I was repeatedly denied access. Instead, I was told by staff that the manager "advised the driver" that the U-bolts required re-torquing. As I am both the owner and the driver, I can confirm that no such instruction was ever given. Furthermore, there is no mention of a required re-torque or mileage-based adjustment on my official work order or any provided documentation. It is disappointing to see a shop fail to stand behind its work and refuse to engage in a professional dialogue when a clear error in installation occurs. I would not recommend this shop to anyone looking for reliable service or professional customer support.

We had our commercial water truck break down on site. We tried a big name Mobil truck repair…read moreservice. They did not have a clue and charged us a lot. I called Phoenix truck and they sent a mechanic to the construction site. The mechanic was able to diagnose the issue immediately. Joe in morning he office was very helpful and got our truck repaired for a very reasonable price. We are very happy with the repairs and the price.

DO NOT USE DOUG'S KING REPAIR SERVICES…read more Apparently Doug blows off a lot of his customers when he doesn't feel like working. Doug gave us a 2 hour window to come work on our RV & never showed. He did answer the phone but said he'd call back in a minute. He failed again not returning the inquiry. You can be the best mechanic in the world, but if you screw people over, karma is a b***h.

Waited two weeks for an appointment then no show, no call. Received a text 5 hours later…read moreapologizing and said they would call to reschedule. I texted next day to reschedule and never received a call.

I was quoted $530 to come out to work on my RV that has no throttle signal and cannot be moved. I…read moretold the mechanic who came out every single diagnostic I had already done and ruled out. After spending 2 hours doing the exact same checks that I had already done, and obviously finding zero solutions since there was nothing new being done they charged my card $830, 300 more than the quoted price, and told me I need to tow it in to their shop because he can't find the problem. He also told me he was repairing wires underneath the motorhome, but I crawled under after he left and there were zero repairs that weren't done by myself before he got there. All he did was remove plastic conduit. I immediately called and was told they could refund the extra charged amount because it was intentionally not disclosed to me ahead of time, but since then in the last 3 weeks they have NOT done so and I've called multiple times a week about it. Each time I get told "I will work on that and call you back". I have not once received a call back. I could've burned the money and been in the same spot. Stay away from this company.

This company is a ripoff and they are a bunch of THEIVES if you leave you truck overnight or more…read morethan a few days I recommend that you check your gas before you leave it because when you come back, your gas tank will be completely empty from them siphoning gas out of your truck and go and ram-shack inside not to mention they will break something on your truck like a mirror and act like they don't know what happened and then make you out to be in the wrong. I don't believe none of the previous reviews because I believe they were done by their friends and family and maybe some of the coworkers because when you go to other sites, they are highly not recommended. so I highly don't recommend them at all. they couldn't fix my skateboard.

I've got a 2001 F350 that's of course up there in years but it only has 125k miles which makes it…read morepractically brand new. Well, I was right in the middle of a job needing it for a long haul when it began acting up really bad. It would chug at stop lights and it was behaving like it wasn't getting fuel... and it finally even died on me. Well, thank god I was able to get it to a local mechanic and when calling all my friends on who they would use, many of them cited the same place and it was Scott Repmans off Bell. Especially because I've got a diesel and I know they require a special touch. Well, not only was I expecting the bill to be much higher but I honestly wasn't expecting to get it back until Thursday or even Friday. Turns out it was a sensor for the accelerator and they had it ready for pickup on Monday by 3pm! It drives BETTER than even before the problems began and I now know where to take it for my tune-up and maintenance like oil changes. Super thrilled with this place and will recommend them along with my buddies now.

As an Uber driver I picked up a passenger at Scott Repman's…read more Truck and Auto repair. The company was sending their customer home paying for the Uber ride since the car was staying overnight. The parking lot was full and my passenger was happy with their service. I needed to replace my Wife's car AC cabin fan and radiator fan. I bought the parts at the dealer expecting to do the repair myself. After watching YouTube videos I decided someone with actual skill and experience needed to do the job. I made an appointment through Yelp. The repair took about three hours. I was happy when they called with the request to proceed after testing that they did not try to up sell me on other repairs, just I was right that the fan motors were bad. When I picked up the repaired car, they did have a list of issues and discussed the importance of repairing each. Most were just fine right now but watch for issues in the future. They did say there was a split hose from the engine air filter to the engine which needed replacing sooner than later. Since I do the routine maintenance on my cars at home they suggested buying a new hose and installing it myself. They were happy to do it but said that part was easy to replace. I also appreciate they returned the replaced parts without me asking. First repair and I'm impressed. I posted on an Uber driver facebook group about the company. One driver replied they don't go Cha-Ching when a female walks in. Everything about my first repair was transparent and fully discussed before the repair and when I picked up.

Great guys, great service!…read more I took my motorhome in to have the front wheel bearings greased they did a great job, charged what they promised!

I have to say Massey's Diesel will always be my place to go for at issue or service. My 2013…read moreEntegra Anthem 43 foot class A RV with 83,000 broke down I. Buckeye and had to be towed. This is the first time in 7 years this has happened. I called Tom at Massey's and said I am broke down and need to be towed. He asked what the problem was and I told him. I asked him if he has power so I can plug the coach in and he said so you want an extension cord (he was being funny) and he said yes we have 50 amps to plug into. That said they were 4 people short today and his team hopped right on things and got me taken care of. They worked about 3 hours trying to figure out the issue. Once fixed they ran a force regen on the system and verified there were no more issues. Instead of gouging me like most places would do they actually gave me a big break and my bill was over half what I expected. Thanks Tom and Tim you guys are great and you now have a customer for life.