You will need to remove the Power Steering pump pulley. Once that is off you will see the three bolts that pass from the front of the block to the pump body.
How do you replace the water pump on a 1988 Cadillac Seville?
What have to do replace the belts water pump power steering
No, you don't have to remove the power steering pump to remove water pump. You do have to loosen the 2 screws that hold the power steering pump and then move power steering pump about an inch or so, so you can have access to some of the screws that hold the water pump on.
How do you replace the power steering pump for a 1987 Toyota Supra?
Remove the plug on the bottom of the power steering fluid pump. Drain the power steering fluid out. Replace the plug to the bottom of the power steering pump. Replace the power steering fluid.
Check the fluid first
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Drop the fuel tank. Its in the tank
If the pump has a removable pulley, then you can replace it.
Begin by removing the power steering pump belt from your 1991 Cadillac power steering pump pulley. Remove the power steering pump pulley retaining bolt. The retaining bolt will be in the center of the pulley.