Truck Retarder: Faults, Replacement & Maintenance Guide
Complete VADEN guide to heavy truck retarders: how hydraulic and electromagnetic types work, fault diagnosis, replacement steps, torque values and maintenance.
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Articles
Diesel Injection Pump: Faults, Replacement & Maintenance
Diesel injection pump guide for heavy trucks and buses: fault symptoms, diagnosis, replacement steps, torque and pressure values, and maintenance tips.
Exhaust Manifold: Cracks, Leaks, Replacement & Torque Guide
Spot exhaust manifold cracks, gasket leaks and broken studs on heavy trucks. Learn diagnosis, correct replacement steps, torque values and tightening sequence.
ECAS Solenoid Valve: Faults, Replacement & Maintenance Guide
A truck sitting low on one side or a trailer that will not settle to ride height points to the ECAS solenoid valve block: diagnosis, replacement and calibration.
Fuel Filter & Water Separator: Faults, Change and Care Guide
Power loss under load on a truck, or water reaching common-rail injectors, starts at the fuel filter and water separator: diagnosis, bleeding, replacement.
Hydraulic Steering Pump: Failure, Replacement & Care Guide
Whining at the wheel and heavy steering at manoeuvring speed in a truck usually trace to the hydraulic steering pump: diagnosis, replacement, fluid care.
Viscous Fan Clutch: Fault, Replacement & Maintenance Guide
Heavy-duty viscous fan clutch guide: how it works, fault symptoms, diagnosis, correct replacement steps and safe technical values for trucks and buses.
Exhaust Flex Pipe: Faults, Replacement and Maintenance Guide
On a truck a collapsed exhaust flex pipe strains the whole line from turbo to DPF: how the bellows absorbs engine movement, fault signs and replacement.
ABS Wheel Speed Sensor & ECU: Faults, Replacement & Care
Diagnose, replace and maintain the ABS wheel speed sensor, tone ring and ECU on heavy commercial vehicles: symptoms, air gap, testing and fault codes.
