Chevrolet & GMC Duramax Repair in Phoenix, AZ

Duramax Diesel Repair

Chevrolet Silverado HD and GMC Sierra HD pickups with the Duramax are workhorses for contractors, hot-shot drivers and RV owners across the Valley. Emergency Roadside Truck & Trailer Repair diagnoses and repairs Duramax trucks at our Phoenix shop and on-site with our mobile units.

Duramax Engines We Service

• 6.6L L5P (2017 and newer)
• 6.6L LML (2011–2016)
• 6.6L LMM (2007.5–2010)
• 6.6L LBZ, LLY and LB7 (2001–2007)
• 3.0L Duramax in the Silverado and Sierra 1500
• 2.8L Duramax in the Colorado, Canyon, Express and Savana

Common Duramax Repairs

• Emissions and derates — DPF, DEF heater and pump, SCR and NOx sensor faults (aftertreatment repair).
• Injectors and fuel pumps — injector balance rates, high-pressure pump failures and fuel contamination.
• EGR valves and coolers.
• Turbocharger and boost problems.
• Overheating and coolant leaks — radiators, water pumps and hoses.
• Allison transmission service and diagnostics (transmission repair).
• Glow plugs, batteries and charging.

Duramax Work Trucks and Vans

Many Phoenix businesses run Silverado and Sierra chassis cabs, service bodies and Express or Savana diesel vans. We can maintain them together with your other trucks through our fleet maintenance program. See also diesel pickup repair.

Frequently Asked Questions