Because the shaft is spinning in the impeller, not turning it. Took mine apart. Very poor design. Piece of junk.
Typically the term "pumping station" is what is used. When referring to the individual pieces in the pumping station, these would be called pump sets, and each area containing pump sets, within the pumping station, could be called a pump station.
If the engine is warmed up, the thermostat has opened and coolant is circulating, the pump is pumping.
even though it sounds like it is pumping it may not be, try a new pump and new fuel filter
IT CAN BE A FUSE. OR IT CAN BE THAT THE PUMP IS NOT PUMPING FUEL
Your bike pump may not be pumping air properly due to a clogged valve, a damaged or worn-out pump head, or a leak in the pump or tire. Check these components to troubleshoot the issue.
pumping pump
pump to transfer fluid losses
The water pump may not be pumping water due to a clog in the pump, a malfunction in the motor, or a problem with the power source. It is important to check these potential issues to determine the cause of the problem.
When looking for a high volume hand pump for efficient and effective pumping, consider features such as a durable construction, a comfortable grip, a large pumping capacity, and a reliable pressure gauge. These features will help you pump efficiently and effectively, especially for high volume pumping tasks.
If you're getting power to the pump this proves the fuel pump fuse and fuel pump relay are good. That leaves only two possibilities. Either the pump is running but it's not pumping fuel. Or possibly the fuel filter is clogged.
it always pumping all the time when your:sleepingplayingeatingwatchingdancingreadingit always pumping
The stroke length in the pumping unit refers to structural capacity of a given pump.