It depends on the motor..if you have overhead cam...then YES. The timing belt has to be removed when the water pump is changed and the cam sprockets have to be set to correct timing when the belt is replaced.
There are five steps on how to connect a dual pump and a filter system. Some of the step-by-step instructions are design and excavate an over-sized sump basin, it be a minimum of two inches clearance between the two pumps, and then install the pump in the basin.
The fuel pump relay on the 1990 Mitsubishi Eclipse is in the fuse box on the driver's side of the car. The fuse box can be accessed by opening the driver's door and removing the panel on the side of the dash.
The power steering pump on a 1997 Cadillac Deville is changed by disconnecting the pressure hoses, draining the fluid, and unbolting the pump. It is then pulled from the vehicle and a new pump mounted in place.