24/7 Mobile Semi Truck Repair in Youngstown, OH
A&M Mobile Repair in Youngstown, OH, is owned by Master ASE mechanic Matt Jennings. With 16+ years of experience, Matt offers 24/7 mobile diesel engine, transmission, clutch, and preventive maintenance service across a 120-mile radius, delivering honest, reliable repairs you can trust.

About Us
A&M Mobile Repair was founded by Matt Jennings, a seasoned mechanic with over 16 years of hands-on experience. For years, Matt balanced his mobile repair work alongside a full-time job at Aim Transportation. As demand for his services grew, he made the decision in April 2025 to go all in - turning his lifelong side business into a full-time career.


Services in Youngstown, OH
Looking for a repair service that puts honesty, expertise, and convenience first? At A&M Mobile Repair, we deliver professional on-site service that keeps trucks, buses, and heavy equipment running smoothly—day or night. Because we’re mobile-only, you never have to bring your vehicle to a shop. Instead, we come to you within a 120-mile radius of Youngstown, OH, 24/7.
News & Articles
Find regular articles covering a wide range of topics related to diesel repair, maintenance, and troubleshooting.
Don't Take our word for it.
Read Customer Testimonials.
"They are on time, fast repair and very knowledgeable about repair and explaing the problem. Will be using for all my vehicles need. They explained everything where I understood. They also explained why the problem started and ecommend using this company"
"I had car troubles and was stranded on the side of the road so decided to call A&M Mobile repair and I’m SO grateful I did! They were quick, efficient, professional and reasonably priced. Hopefully I won’t have any more car issues but if I do, I’ll definitely be using them again!"
"I would recommend this business to anyone! My alternator went out in my sprinter van in Ohio and I was stranded. Everyone gave me estimates of $1200 or more and Matt came and got me back on the road for less than $1k. He’s very reasonable, professional, reliable, and really knows his stuff!"
Frequently Asked Questions
Find detailed responses to some of our most frequently asked questions.
As well as Youngstown, OH, we also proudly service Akron, OH; Cleveland, OH; Canton, OH; Wheeling, OH; Pittsburgh, PA; Erie, PA; Johnstown, PA; Jamestown, NY; Morgantown, OH; Greensburg, PA; and Indiana, PA. Our mobile service covers a 120-mile radius so you’re always within reach.
Ignoring transmission issues can quickly lead to complete failure. Slipping gears or hard shifting will only worsen over time, potentially leaving your truck undrivable. In severe cases, ignoring repairs may cause damage to connected driveline components, leading to even higher repair costs.
Common signs include knocking sounds, excessive smoke, difficulty starting, and loss of power. Problems with injectors, fuel delivery, or compression can cause these symptoms. Prompt repair is essential to prevent larger failures, as diesel engines rely heavily on proper fuel combustion for performance.
Preventive maintenance is regular servicing—like oil changes, inspections, and filter replacements—designed to catch problems before they lead to breakdowns. It improves safety, extends equipment life, and saves money in the long run.
Yes. As a mobile-only repair service, we handle most repairs where your vehicle or equipment is located. This includes roadside assistance for breakdowns and scheduled service at your yard or jobsite.
Contact Us
Let us know what is going on with your vehicle, and we will get back to you soon with a quote.