Exactly this. If there's water leaking/dripping/spraying... follow it to its source. If you can't find water coming out of the system anywhere... replace the pump... I find the "automatic pressure sensing" part of the pumps generally are poor quality, and sometimes just lose their minds and cycle the pump motor even when the system is fully pressurized.Do you you have water leaking anywhere? If not it is the pump pressure switch as mentioned above.
FYI I changed out my pump to Aqua King II Supreme 5.0 Pump and love the increased pressure.