What causes the SVS light to illuminate in Jiangling trucks?
2 Answers
Reasons for the SVS light illuminating in Jiangling trucks: 1. First, try to start the engine. If it fails to start, there may be an issue with the fuel pump, which cannot properly supply fuel to the engine; 2. If it can still start, the problem might lie with other sensors. Such a fault can affect the normal use of the vehicle, leading to consequences like body shaking or increased fuel consumption, etc. It is recommended to go to a repair shop for inspection as soon as possible; 3. It could be a false fault. When the SUV light comes on, it indicates that the engine control unit has detected an error signal from a certain sensor or that it has exceeded the usage standard. However, the inspection is influenced by various factors, and if a certain factor is missing, it may cause the electronic control unit to make an incorrect judgment.
A seasoned driver who's been operating this vehicle for over a decade, when the SVS light comes on, it's mostly an issue with the emission system—like a clogged DPF (Diesel Particulate Filter) in diesel trucks or a faulty sensor such as the oxygen sensor. In such cases, I first observe the engine sound and smoothness; if they're normal, there's no need to panic. I remember last year my JMC also had the light on, and after inspection, it turned out to be a stuck EGR valve—a simple cleaning fixed it. But don't take it lightly; if the light flashes or is accompanied by abnormal vibrations, it could indicate a serious issue like a transmission problem, requiring immediate stopping and a trip to the repair shop for diagnosis. Preventive measures include regular long-distance drives to allow DPF regeneration and using quality fuel to keep the system clean. Safety comes first—for us truck drivers, any breakdown on the road means delayed work, so I've made it a habit to get a check-up every three months.
