This exhaust brake solenoid valve controls the activation of the exhaust brake system, which aids in slowing the vehicle by restricting exhaust flow. It is manufactured to Volvo's robust standards, ensuring reliable operation and longevity over a worn valve that may leak or fail to actuate. Operators might notice a lack of braking assist from the exhaust brake, or the system may not disengage properly, affecting engine braking performance.
Always verify with serial number before ordering.
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Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
A failing exhaust brake solenoid may result in the exhaust brake system not engaging when commanded, leading to reduced downhill braking capability. If the valve sticks open, the exhaust brake might remain partially engaged, causing increased exhaust backpressure and potentially affecting engine performance. In severe cases, the inability to control the exhaust brake can compromise vehicle safety on inclines.
Before removing the old valve, ensure the engine is off and the exhaust brake system has been depressurized if applicable. Connect the electrical connector securely to prevent intermittent operation.
Inspect the exhaust brake actuator and linkage for proper movement and wear when replacing the solenoid valve.