A truck engine start, in cold state, running 5~6min, the engine flameout gradually; in the hot state, running 2~3 min will gradually flameout. But before the flameout, regardless of idle or high-speed operation, refueling is normal.

Fault analysis: by checking whether there is a leak in the oil circuit, Baotou North rush truck accessories fuel filter is blocked, fuel tank fuel is sufficient or whether there is water, etc., have not found problems. The flameout solenoid valve circuit fuse is normal; measuring the flameout solenoid valve coil with the multimeter is conducted; check the flameout solenoid valve spring piece, the elasticity is normal, the valve core part does not have the breakdown.

Troubleshooting: spare flameout solenoid valve, Baotou beiben heavy truck parts starting engine, plus or minus throttle repeated tests, the normal operation of the engine, which is suspected of flameout solenoid valve coil interturn short circuit caused by. Troubleshooting after replacing flameout solenoid valve. The flameout solenoid valve is usually installed on the fuel injection pump of the diesel engine to control the on-off of the low pressure oil circuit. When the power is switched on, a magnetic field is produced by the flameout electromagnetic coil, the valve core is sucked in, and the oil circuit is connected; when the power is cut off, the magnetic field disappears. Valve core in the role of spring next position, closed the oil circuit.

Small knowledge: in general, if the flameout solenoid valve fuse fuse or circuit breaker, the engine can not start. Similarly, if the flameout solenoid valve coil open. Baotou North rush heavy truck parts engine can not start. If the flameout solenoid valve short circuit between coils, the engine may not start or after starting the engine flameout solenoid valve with temperature and temperature, coil insulation with gradually lose their ability of electro-magnetic decreases, so that gradually make oil engine flameout shut down slowly.