Water Pump: Service and Repair

Coolant Pump - 3.5L GTDI, 3.7L

Material Item Specification

Motorcraft(R) Specialty Orange Engine Coolant
VC-3-B (US);
CVC-3-B (Canada) WSS-M97B44-D





Item Part Number Description

1 W503291 Coolant pump pulley bolt - 25 Nm (18 lb-ft) (4 required)

2 8A528 Coolant pump pulley

3 W503278 Coolant pump bolt (7 required)

4 8501 Coolant pump

5 8507 Coolant pump gasket (part of 8501)

6 8565 Coolant pump O-ring seal (part of 8501)

Removal

1. Remove the air cleaner outlet pipe.

2. Loosen the 4 coolant pump pulley bolts.

3. Remove the accessory drive belt.

4. NOTICE: Cover the A/C compressor belt to prevent coolant contamination of the belt.

Completely cover the A/C compressor belt with waterproof plastic.

5. Remove the thermostat housing. For additional information, refer to Thermostat Housing 3.5L GTDI or Thermostat Housing 3.7L.

6. Remove the 4 bolts and the coolant pump pulley.

7. Remove the 7 bolts and the coolant pump.

Remove and discard the gasket and the O-ring seal in the coolant pump.

Installation

1. Install a new O-ring seal in the coolant pump and lubricate it with clean engine coolant.

2. Position a new gasket, press the coolant pump over the channel cover plate snout protruding from the engine front cover and install the 7 bolts finger tight.

3. Tighten the coolant pump bolts in the sequence shown in 2 stages.

Stage 1: Tighten to 10 Nm (89 lb-in).

Stage 2: Tighten an additional 45 degrees.





4. Position the coolant pump pulley and install the 4 bolts finger tight.

5. Install the thermostat housing. For additional information, refer to Thermostat Housing 3.5L GTDI or Thermostat Housing 3.7L.

6. Remove the plastic from the A/C compressor belt.

7. Install the accessory drive belt.

8. Tighten the 4 coolant pump pulley bolts.

Tighten to 25 Nm (18 lb-ft).

9. Install the air cleaner outlet pipe.

10. Fill and bleed the cooling system. For additional information, refer to Cooling System Draining, Filling and Bleeding.