Services 2021-04-08T19:35:37+00:00

Complete & Reliable Truck Service & Repair

At GJH Motors LLC, you and your confidence are the most important piece of the puzzle. We provide a wide range of truck repair services for your convenience. And remember, we want to keep you in our loyal customer family. If you don’t see the service you’re looking for, just ask!

Preventative Maintenance/DOT Inspection

By identifying components or parts that are wearing out and repairing or replacing them before they fail, an effective preventive maintenance program can help limit production downtime and extend the service life of equipment and facilities. Performed by one of our professional technicians, our PMI and DOT Inspection serve as a report card for your truck so that you learn of potential repairs that may require immediate attention to stay DOT compliant, as well as ones you may want to plan for in the future.

  • Scheduled Maintenance
  • Computer Diagnostics
  • Oil Changes
  • Filter Replacements
  • DOT Inspections
  • Transmission Repair
  • Coolant and Air filter Services
  • Maintenance Inspections
  • Check Engine Light Diagnostics & Repair
  • Brake Service & Repair
  • Air Bag/ Leak Repair
  • Differential Repair
  • Steering Repair

Truck Engine Service

Sometimes things can occur at the most inopportune time and you need to get your vehicle back on the road quickly and safely. When that check engine light comes on, it’s hard not to feel annoyed or even worried. We know how you feel, and we are here to help! At GJH Motors LLC we offer a thorough engine performance check, as well as engine repair and engine replacement services. We do our best to save you money and time with Phoenix diesel truck repair services like drivability diagnostics and fuel injection repair and service. Our skilled professionals got into this business because they love vehicles: they want your truck to be running like new and our engine truck services will make it happen

It’s important to bring your rig to a seasoned mechanic who can get your steering working right, and get you back in the driver’s seat. This is when you can count on GJH Motors LLC to give you the service for most of your electrical truck and trailer parts issues.

  • Engine Repair
  • Engine Replacement
  • Engine Performance Check
  • Belt Replacement
  • Hose Replacement
  • Cooling System Repair
  • Radiator Repair & Replacement
  • Water Pump Repair & Replacement
  • Drivability Diagnostics & Repair
  • Fuel Injection Repair & Service
  • Fuel System Repair & Maintenance
  • Ignition System Repair & Maintenance

Heating & A/C Service and Repair

For the best cooling and heating truck repair service in Phoenix, trust GJH Motors LLC. We offer a full range of heating and cooling system diagnostics, as well as heating system and air conditioning repair and service. Our trained technicians are also masters of belt, compressor, and evaporator repair and replacement.

  • Heating & Cooling System Diagnostics
  • Truck Air Conditioning Repair & Service
  • Heating System Repair & Service
  • Belt Repair & Replacement
  • Compressor Repair & Replacement
  • Evaporator Repair & Replacement

Truck Electrical Service

GJH Motors LLC provides the best electrical truck service in Phoenix, hands down. Whether you’ve lost the “power” in your power steering or your vehicle is ready for power lock repair, we want to be your top choice. From alternators to windows and everything in between, trust GJH Motors LLC to provide your Phoenix truck repair services.

  • Electrical System Diagnostics & Repair
  • Alternator Repair & Replacement
  • Starter Repair & Replacement
  • Windshield Wiper Repair
  • Power Lock Repair
  • Power Antenna Repair
  • Power Steering Repair
  • Power Window Repair
  • Power Accessory Repair
  • Light Repair & Bulb Replacements

Brake Service & Repair

Even with a reliable braking system, the weight and design of a semi-truck and trailer alone place a large amount of strain on brake components. A brake problem on any vehicle is dangerous, but when a truck or tractor-trailer has an issue, the danger increases tenfold. Regular brake maintenance is critical for keeping your brakes in good operating condition and preventing issues that can place you and others in extreme danger on the road.

  • Valves
  • Resurface rotors
  • Brake shoe
  • Brake hardware
  • Air brake hose
  • Air brake fittings
  • Brake chambers
  • Turning brake drums
  • Wheel seals
  • Wheel bearings
  • Air tanks
  • Brake installation
  • System troubleshooting

Transmission Repair

No matter your need, avoid downtime with transmission solutions you can always rely on with GJH Motors LLC. Automatic or manual, semi-truck transmission repair, or medium-duty trucks, we’ve been the go-to for quality remanufactured transmissions. Our heavy-duty transmission repair shop and expert technicians do everything from diagnostics, maintenance and troubleshooting to custom repair, complete rebuild and remanufacturing services – all in-house.

  • Air System Component Repairs
  • Allison Automatic Transmissions
  • Diagnostic Troubleshooting
  • Manual Transmissions
  • Preventative Maintenance
  • Remove/Replace or Custom Repair

Complete Truck Service in Phoenix

At GJH Motors LLC, making sure your semi-truck stays on the road is our primary objective. With a wealth of resources at our fingertips and decades of experience under our belts, we continue to stand out as the premier semi-truck repair service provider. From oil changes to preventative maintenance inspection, our expertise enables us to provide reliable service and maintenance to your diesel truck.

Truckers understand how important it is to have their trucks and trailers serviced by knowledgeable, experienced mechanics. The mechanics at GJH Motors LLC are some of the best in the industry.


  • Brakes & Brake Repair
  • Oil Changes
  • Tires & Tire Repair
  • Mufflers & Exhaust
  • Check Engine Light
  • Belts & Hoses
  • And Much More...
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GJH Motors LLC
3801 N 43rd Ave Ste 4
Phoenix, AZ 85019
(602) 369-9910