Delivering expert truck
repair services since 2015
Professional Truck Mechanics in Fontana, CA
If you're looking for professional truck mechanics in Fontana, CA, J&G Truck Repair Inc. is your trusted repair partner.
đź“Ť Located in Fontana, CA
đź“ž Call today to schedule service
🛠Hablamos español
SPECIAL
Labor Rate
Starting at
$125 for Trucks
$100 for Trailers
Engine and Transmission Repair
Your truck’s engine and transmission are the heart of its performance. When either system fails, your operation comes to a stop.
DD15 Engine Specialist
The DD15 engine is known for power and efficiency — but it requires expert care. Our technicians are experienced in diagnosing and repairing Detroit Diesel DD15 engines, ensuring optimal performance and reliability.
Cummins Engine Specialist
Cummins engines are built tough, but even the best engines require maintenance and repairs. We are skilled in servicing and repairing a wide range of Cummins diesel engines, providing precise and professional solutions.
Our Most Requested Services
Check Engine Light
and Diagnostics
One of the most common reasons drivers visit J&G Truck Repair Inc. is a Check Engine Light. When that light turns on, it could indicate anything from a minor sensor issue to a serious engine problem.
Engine Diagnostics and
Computer Diagnostics
Modern trucks rely heavily on computer systems. Proper diagnostics require specialized equipment and trained technicians.
Differentials Service
and Repair
Your truck’s differential plays a crucial role in transferring power from the engine to the wheels. We provide professional differential inspections, repairs, and replacements to keep your truck operating smoothly and safely.
Oil Change and Preventive Maintenance
Preventive maintenance is the key to extending your truck’s lifespan and preventing costly breakdowns. At J&G Truck Repair Inc., we help you protect your investment.
Brake Service and Repair
Brake issues are a serious safety concern for heavy-duty trucks. If you notice squealing, grinding, reduced stopping power, or vibrations, it’s time for professional brake service. We ensure your truck’s braking system is safe, responsive, and compliant with safety standards.
DPF Cleaning and
Check DPF Light
The Diesel Particulate Filter (DPF) is essential for reducing emissions. Over time, the DPF can become clogged, triggering a Check DPF Light. Ignoring DPF issues can lead to engine damage and costly repairs. If your DPF light is on, visit our Fontana location for immediate service.
Truck Air
Conditioning Repair
Driving in Southern California heat without working A/C is uncomfortable and exhausting. Our truck air conditioning services ensure you stay cool and comfortable on long hauls.
Radiator and Cooling
System Repair
Overheating can severely damage your engine. Your truck’s radiator and cooling system must be working efficiently at all times. If your truck is overheating or leaking coolant, don’t delay — bring it in for professional cooling system repair.
Trailer Repair Services
Your trailer is just as important as your truck. At J&G Truck Repair Inc., we provide comprehensive trailer repair services to ensure safe and efficient hauling. We help keep your entire rig road-ready and compliant.
Truck Electrical Services
Modern trucks rely heavily on electrical systems. Electrical problems can cause starting issues, lighting failures, or malfunctioning sensors.
Serving Fontana, CA
and surrounding areas
We served Fontana, Rancho Cucamonga, Ontario, Rialto, Colton, Highland, Redlands, Riverside, Moreno Valley, and San Bernardino.
Prevent Downtime — Keep
Your Truck Running Strong
Breakdowns don’t just cost money — they cost time, contracts, and opportunities. That’s why regular maintenance and prompt repairs are critical. Our goal is to keep your truck operating at peak performance.
Keeping Trucks
Moving Since 2015
Why Choose J&G Truck Repair Inc.?
When it comes to heavy-duty truck repair, experience and accuracy matter. Downtime costs money — and we take that seriously.
Serving Fontana, CA
since 2015
Over 10 years of diesel
mechanic experience
Specialists in DD15 and
Cummins engines
Advanced computer diagnostics
Fast turnaround times
Honest and
transparent service
Competitive pricing
Trusted by owner-operators and fleets
About Us
At J&G Truck Repair Inc., we know your truck is your livelihood. Since 2015, we’ve provided reliable, high-quality truck repair services in Fontana, California, serving owner-operators, fleet managers, and commercial trucking companies.
With over 10 years of experience, our skilled diesel mechanics specialize in heavy-duty repairs, advanced diagnostics, preventive maintenance, and complex engine and transmission work. From check engine lights and DPF issues to brake and A/C problems, we get you back on the road quickly and safely. We’re especially known for our expertise in DD15 and Cummins engines, delivering precision and performance you can trust.
Hablamos español
Nuestros Servicios Profesionales
DiagnĂłstico de motor y
“Check Engine Light”
DiagnĂłstico con computadora
ReparaciĂłn de motor
y transmisiĂłn
Diferenciales
Cambio de aceite y
mantenimiento preventivo
Diferenciales
Cambio de aceite y
mantenimiento preventivo
Servicio de frenos
DPF Cleaning
Check DFP LIght
Aire acondicionado
para camiones
Radiadores
ReparaciĂłn de
remolques y tráilers
Servicio eléctrico de camiones
Contact J&G Truck
Repair Inc. today!
Professional truck and trailer repair services
in Fontana and surrounding areas.
9922 Carob Ave
Fontana,
CA 92335
Monday:
7:00 a.m. - 4:00 p.m.
Tuesday:
7:00 a.m. - 4:00 p.m.
Wednesday:
7:00 a.m. - 4:00 p.m.
Thursday:
7:00 a.m. - 4:00 p.m.
Friday:
7:00 a.m. - 4:00 p.m.
Saturday:
7:00 a.m. - 4:00 p.m.
Sunday:
7:00 a.m. - 4:00 p.m.
Payment Methods