Duramax engines are known for power, torque, and long-haul performance — but like any heavy-duty diesel platform, they need the right hands when something goes wrong. At California Coast Truck Repair, we specialize in servicing and repairing Duramax-powered trucks across Santee
County. From early LB7 models to the latest L5P, we’ve seen every generation of this 6.6L GM workhorse.
Whether you’re dealing with injector failures, emissions system issues, turbo problems, or full engine diagnostics, our diesel techs know how to get your Duramax back in fighting shape.
Santee Trusted Shop for Diesel Truck Maintenance
Located in Santee, California Coast Truck Repair is known for our honesty, expert diagnostics, and unmatched customer service. We specialize in diesel truck maintenance for Ford Power Stroke, Cummins, and Duramax vehicles. Whether you're maintaining a fleet or a single RV, we’ve got the tools, experience, and reputation to keep you rolling.
Common Duramax Problems We Fix:
Duramax diesel engines are tough, but they’re not immune to failure. At California Coast Truck Repair, we regularly diagnose and repair common Duramax issues like failed injectors (especially on LB7 and LBZ models), clogged EGR and DPF systems, turbocharger problems, fuel rail pressure errors, glow plug malfunctions, and sensor faults that lead to power loss or hard starting. Whether you’re running a Chevy Silverado 2500HD, GMC Sierra 3500HD, or managing a fleet, we handle Duramax diesel problems fast and accurately. Our team has experience across all Duramax generations — LB7, LLY, LBZ, LMM, LML, LGH, and L5P — and we know how to get them running right again for work, towing, or long-haul use across Santee County.
- Injector replacements (LB7/LBZ engines)
- Hard starts and fuel rail pressure faults
- Fuel system repairs
- Cracked exhaust manifolds
- EGR/DPF system failures
- Fuel delivery and rail issues
- Custom maintenance programs for work fleets
