916 Truck Repair provides DPF and DEF system repair in Sacramento for heavy-duty diesel trucks. Derate diagnostics, forced regeneration, and aftertreatment service at your location. Call (916) 898-9090.
Modern diesel trucks rely on aftertreatment systems — Diesel Particulate Filters (DPF), Diesel Exhaust Fluid (DEF) injection, and Exhaust Gas Recirculation (EGR) — to meet emissions standards. When these systems fail, the truck enters derate mode: reduced power, limited speed, and eventually a forced shutdown.
916 Truck Repair provides DPF/DEF system repair for heavy-duty diesel trucks across Sacramento and Northern California. We diagnose aftertreatment faults, perform forced regeneration, repair DEF system issues, and get your truck back to full power.
We diagnose the root cause of derate conditions — DPF clogging, DEF quality issues, EGR valve failures, or sensor faults. Not just clearing codes. Fixing the problem.
When the DPF is too clogged for passive regeneration, we perform forced regeneration to burn off accumulated soot and restore filter flow.
Professional DPF cleaning and replacement for heavily clogged or damaged filters. We assess DPF condition and recommend cleaning or replacement.
DEF injector repair, DEF pump replacement, DEF tank heater service, and DEF quality testing. We fix the DEF issues that cause repeated derate events.
EGR valve cleaning, replacement, and cooler repair. Stuck or carbon-fouled EGR valves cause rough idle, power loss, and emissions faults.
Unaddressed aftertreatment faults escalate to a forced engine shutdown. Mobile DPF/DEF repair prevents the truck from going completely dead on the highway.
Derate mode costs miles and money. Proper aftertreatment repair restores full engine power and speed capability.
Driving in derate mode stresses the engine, turbocharger, and fuel system. Fixing aftertreatment issues early prevents cascade failures.
We operate across the greater Sacramento region and along major Northern California highway corridors. Mobile dispatch to your yard, dock, or roadside.
Mobile truck repair for highway breakdowns, truck stops, fleet yards, docks, and roadside service calls.
(916) 898-9090