Mercury F8AZ-3A674-CBRM Pump Assy - Power Steering

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To replace the power steering pump on 1998 and later models, follow these steps: 1. Check the power steering pump pulley for paint marks after removing it. If it has no marks, make one and reuse the pulley. If it has one paint mark, make a second mark and reuse the pulley. If the pulley already has two marks, it should be replaced with a new pulley. 2. Relieve tension on the accessory drive belt. 3. Access the power steering pump, which can be located on the left (driver's) side of the engine block. Depending on the model, you may need to raise the front of the vehicle and place it securely on jackstands. 4. Disconnect the fluid return hose from the pump and drain the fluid from the pump reservoir. 5. Disconnect the pressure hose from the pump, but do NOT unscrew the pressure fitting itself. Plug the lines to prevent contamination. Models from 1997 on may have an electrical connector for the variable assist steering; disconnect this electrical connector before removing the pump. 6. On some engines, the pump is mounted on a bracket bolted to the engine. You'll need to remove the pulley before removing the pump-to-bracket mounting bolts. A special puller for this purpose is available at most auto parts stores. On other engines, the pump is mounted directly on the block, so the pulley doesn't cover up the mounting bolts. On these models, it's easier to remove the pulley on the bench after you've removed the pump assembly. 7. Remove the pump mounting bolts and remove the pump. 8. Installation is the reverse of the above procedure. On some engines, you'll need a special pulley installer tool to install the pulley once the pump is bolted to its mounting bracket. 9. Install the accessory drive belt or the serpentine belt. 10. Install the pressure and return lines and fill the reservoir with an approved fluid. 11. Start the engine and turn the steering wheel from lock to lock several times to distribute the fluid, then recheck the fluid level and top-off if necessary. 12. Bleed the power steering system.

Installation is the reverse of the removal procedure. For 5.0L engines, a special pulley installer tool is needed to install the pulley once the pump is bolted to its mounting bracket.

The pump on 5.0L engines is mounted on a bracket bolted to the engine. Remove the pulley using a special puller, then remove the pump-to-bracket mounting bolts.