Why does the JMC Shunda suddenly stall during normal driving?
2 Answers
JMC Shunda suddenly stalls during normal driving due to fuel quality issues or circuit board problems. Below are the specific reasons for the JMC Shunda suddenly stalling during normal driving: Fuel quality issues: Water or impurities in the fuel tank, clogged fuel injectors, or dirty filters; inspect and clean the fuel supply system. Circuit board problems: If the vehicle stalls, depending on the road conditions, if there is no emergency, you can gently apply the brakes to prevent a rear-end collision. After reducing speed, steer slowly to the roadside lane. Be sure to keep the brakes pressed continuously. Apply increasing pressure gradually—do not pump the brakes, as this will deplete the remaining vacuum.
The day before yesterday, I was driving my Shunda delivery truck when this happened—suddenly stalled while cruising at 60 km/h. Don’t panic, first check if the fuel tank is empty. Diesel engines shut down immediately if the fuel pump runs dry, and some older trucks have inaccurate fuel gauges. If you just refueled, it’s likely a fuel line issue—last time for me, the diesel filter was completely clogged, and replacing it fixed the problem. Another possibility is a burned-out fuel pump relay, located in the fuse box under the steering wheel—if it’s hot to the touch, that’s probably it. Loose battery terminals can also cause sudden power loss; try tightening the screws with a wrench. Whatever you do, avoid forcing a restart—call a tow truck and have a repair shop check the fuel pump and electrical system to be safe.
