What is the reason why the circulating water pump of sewage suction vehicle is easy to stall at idle speed?

There are many reasons for idling flameout.

First, analyze the symptoms of idling flameout. Engine idle motor or idle motor circuit is damaged, brake vacuum booster vacuum tube leaks, brake vacuum booster diaphragm is damaged, intake manifold leaks, and engine ECU idle control module fails.

Causes of idling flameout of automobile, throttle blockage, carbon deposit, abnormal opening, carbon deposit blockage of nozzle, burning or damage of spark plug, and oil pump blockage caused by using inferior gasoline.

When the car is idling, flameout means that the engine runs well from low speed to high speed after starting, but flameout immediately after releasing the accelerator pedal or flameout after instability.