A tool for cleaning valves and other devices in subterranean wells. The tool is cylindrical in shape and has several components, including a pressurized gas housing, a fluid housing, and multiple jet ports extending radially. The tool is lowered into the subterranean well and positioned so that the multiple ports are aligned with the valve or other device to be cleaned. A jarring action on the tool releases the pressurized gas into the fluid housing, thereby forcing the fluid out of the fluid housing and through the multiple jet ports. The fluid flowing through the multiple jet ports cleans the valve or other device.