Ford 4C3Z-8501-B
Water Pump

Service and repair of the water pump starts by uninstalling the engine cooling fan and fan shroud and drive belt together with the water pump pulley. The upper radiator hose needs detachment from the water pump when servicing the 4.2L engine. The task requires removal of water pump bolts before extracting the water pump from the cylinder block while cleaning the mating surfaces for inspection. When installing the new water pump it is important to use only Motorcraft Premium Engine Coolant VC-4-A (green) or VC-5 (Oregon) or Motorcraft Premium Gold Engine Coolant VC-7-A (yellow), while avoiding the mixing of different coolant types. Water pump installation begins with engine coolant lubrication of the O-ring followed by water pump placement on the engine and temporary bolt installation according to specified tightening order. Set the water pump pulley on the water pump beside installing bolts in the correct sequence yet leaving them loosely attached. Finally, perform the complete bolt tightening. When working on the 4.2L engine you should put the upper radiator hose onto the water pump while you also install drive belt and complete the task with engine cooling fan and fan shroud.

Start coolant pump servicing and repairing process on gasoline engines by draining the engine cooling system. The first step requires removal of the cooling fan followed by bolt loosening on the four coolant pump pulley bolts which need re-tightening to 25 Nm (18 lb-ft) upon refitting. The accessory drive belt can be removed by rotating the tensioner clockwise from the coolant pump pulley. After that you should remove the four bolts that hold the coolant pump pulley in place. Untighten the four bolts which hold the coolant pump before discarding the O-ring seal. At the stage of new coolant pump assembly consumers should apply metal surface prep as detailed in the packaging instructions before installation of a new O-ring seal which must receive engine coolant lubrication for installation. Reverse the tooling to put on the four install bolts and tighten them to 25 Nm (18 lb-ft) following the noted specification.

The service of the coolant pump begins with draining the fuel system and turbocharger cooling reservoir. The service on the coolant pump begins by taking off the LH fender splash shield and then removing the radiator-to-coolant pump hose and the coolant pump-to-fuel cooler hose at the coolant pump. First detach the coolant pump from the cooling module after you remove the bolts then securely fasten the bolts to 3 Nm (27 lb-in) when reassembly occurs. You need to disconnect the coolant pump electric connector to proceed with removing the coolant pump. Follow the removal instructions in reverse order before finishing with fuel system filling and bleaching the system with the turbocharger.

Draining the engine cooling system should be the first step when servicing the coolant pump for the 5.4L (3V) engine. You must first remove the cooling fan together with the accessory drive belt. The next step involves removing the bolts from the coolant pump pulley until you tightly fasten it to 25 Nm (18 ft. lbs.) when reinstalling. The coolant pump bolts should be removed first followed by re-tightening them to 25 Nm (18 ft. lbs.) while installing. Cleaning the O-ring recoil mating area starts with a metal surface preparation while adhering to the packaging guide. Replace the old O-ring seal with a new one before beginning the installation. The installation requires a new O-ring seal that should be lubricated with clean engine coolant while following the reverse order for the removal steps.

Remove the engine cooling fan and fan shroud, followed by the drive belt.

Remove the nuts for the A/C compressor mounting bracket support, which should be tightened to 25 Nm (18 ft. lbs.) upon reinstallation.

Be cautious as some vehicles use Motorcraft Premium Engine Coolant VC-4-A (green) while others use Motorcraft Premium Gold Engine Coolant VC-7-A (yellow); mixing coolant types is not advisable.

Begin by draining the cooling system.

Remove the bolts securing the water pump and detach the water pump from the cylinder block.

Ensure to lubricate the new O-ring seal with engine coolant before placing it onto the pump.

Place the pulley onto the water pump and install the bolts, followed by the accessory drive belt.

For installation, reverse the removal procedure.

Tighten the bolts to 31 Nm (23 lb-ft) and install a new O-ring seal.

Inspect the sealing surfaces and clean them using metal surface prep according to the packaging instructions.

Reinstall the coolant pump, tightening it to 25 Nm (18 ft. lbs.), and reverse the removal procedure to complete the installation.

Fill and bleed the fuel and turbocharger cooling system.

Complete the process by reversing the removal steps.

Remove the four bolts holding the coolant pump in place and discard the O-ring seal.

Release the clamp and then remove the fasteners and the coolant pump, which should be tightened to 28 Nm (21 ft. lbs.) during installation.

Install a new O-ring seal, lubricating it with clean engine coolant before placing it.

Remove the four bolts holding the coolant pump in place and discard the O-ring seal.

Remove the upper bolt of the A/C compressor mounting bracket support and loosen the lower bolt, positioning the bracket and bolt forward until they contact the power steering pump pulley, then set the A/C compressor mounting bracket aside, tightening it to 48 Nm (35 lb-ft) during reinstallation.