Oil Pump

This procedure involves removing the timing chain cover and oil pan to access and replace the oil pump on the 3.5L EcoBoost V6 engine.

Warnings

Tools required

Parts

• Oil pump assembly × 1 — Motorcraft PU-469 or equivalent
• Oil pump pickup tube O-ring × 1 — Use OEM specification
• Timing chain cover gasket × 1 — Use OEM specification
• Oil pan gasket × 1 — Use OEM specification
• Engine oil filter × 1 — Motorcraft FL-500-S
• Oil drain plug crush washer × 1 — Use OEM specification
• RTV silicone sealant × 1 — Motorcraft TA-357 or equivalent

Fluids

• Motorcraft 0W-20 Full Synthetic Engine Oil — 6 qt
• Motorcraft Orange Coolant — 2 qt

Preparation

1. Ensure engine is completely cool and vehicle is on a level surface
2. Disconnect negative battery cable and wait 10 minutes for system discharge
3. Raise and securely support vehicle on jack stands at all four corners
4. Remove engine splash shield and underbody panels
5. Drain engine oil completely and remove oil filter
6. Drain cooling system partially (approximately 2 quarts to drop coolant level below timing cover)
7. Install engine support fixture from above to support engine weight
8. Remove serpentine drive belt
9. Remove front engine mount through-bolts to allow engine lowering

Procedure

1. 1

   Remove oil pan
   Remove all oil pan mounting bolts in a crisscross pattern working from the outside toward the center. Carefully separate the oil pan from the engine block using a plastic pry tool at the designated pry points. Do not damage the sealing surfaces. Clean all gasket material from the oil pan and engine block mating surfaces using a gasket scraper.
   Torque spec

   Oil Pan Bolts12 Nm (9 lb-ft)
2. 2

   Remove accessory components
   Remove the crankshaft pulley bolt using a breaker bar (crankshaft must be held from rotating). Remove the crankshaft pulley. Disconnect electrical connectors from sensors mounted on the timing cover. Remove the power steering pump mounting bolts and position pump aside without disconnecting lines.
3. 3

   Remove timing chain cover
   Remove all timing chain cover bolts, noting their positions as different lengths are used in specific locations. Carefully separate the timing cover from the engine block. The cover is sealed with both gasket and RTV, so gentle prying at designated points may be required. Take care not to damage the timing chain or guides during removal.
   ⚠Mark the timing chain orientation and cam/crank sprocket positions before proceeding. Timing chain misalignment will cause engine damage.
   Torque spec

   Cover Bolts19 Nm (14 lb-ft)
4. 4

   Verify timing marks and secure chain
   Rotate the crankshaft to TDC position on cylinder 1 (compression stroke). Verify all timing marks are properly aligned. Install timing chain holding tool to prevent chain movement and maintain timing alignment throughout oil pump removal.
   ⚠️Do not allow the timing chain to move or skip teeth. This will destroy engine timing and cause internal damage upon startup.
5. 5

   Remove oil pump pickup tube
   Remove the oil pump pickup tube mounting bolt from the pump housing. Carefully remove the pickup tube from the oil pump, noting the O-ring seal. Inspect the pickup screen for debris or damage.
   Torque spec

   Oil Pump Pickup Tube12 Nm (9 lb-ft)
6. 6

   Remove oil pump assembly
   Remove the three oil pump mounting bolts securing the pump to the engine block. The pump is driven by the crankshaft, so carefully pull the pump straight away from the engine to disengage the drive mechanism. Inspect the pump drive engagement area on the crankshaft for wear or damage.
   ⚠Do not rotate the crankshaft with the oil pump removed, as this may affect timing chain tension.
   Torque spec

   Oil Pump Bolts12 Nm (9 lb-ft)
7. 7

   Inspect and prepare new oil pump
   Inspect the oil pump mounting surface on the engine block and clean thoroughly. Prime the new oil pump by filling it with clean engine oil and rotating the pump gears by hand. Verify the new pump rotates smoothly without binding. Install a new O-ring on the pickup tube and lubricate with clean engine oil.
8. 8

   Install new oil pump
   Carefully align the oil pump with the crankshaft drive and slide into position, ensuring proper engagement. Install the three oil pump mounting bolts and torque to specification in a crisscross pattern. Verify the pump seats flush against the engine block.
   Torque spec

   Oil Pump Bolts12 Nm (9 lb-ft)
9. 9

   Install oil pump pickup tube
   Install the oil pump pickup tube into the pump housing, ensuring the O-ring seats properly. Install the pickup tube mounting bolt and torque to specification. Verify the pickup tube is properly positioned and secured.
   Torque spec

   Oil Pump Pickup Tube12 Nm (9 lb-ft)
10. 10

    Install timing chain cover
    Clean all timing cover mating surfaces thoroughly. Apply a 3mm bead of RTV silicone sealant to the engine block at the oil pan-to-block and cylinder head-to-block junctions. Install the new timing cover gasket. Position the timing cover carefully, ensuring it does not disturb the timing chain. Install all timing cover bolts finger-tight first, then torque in the specified sequence to specification.
    ℹ️Timing cover bolts must be tightened in the proper sequence to ensure even gasket compression and prevent leaks.
    Torque spec

    Cover Bolts19 Nm (14 lb-ft)
11. 11

    Reinstall accessory components
    Reinstall the power steering pump and torque mounting bolts to specification. Reconnect all electrical connectors to timing cover sensors. Install the crankshaft pulley and torque the crankshaft bolt to specification. Remove the timing chain holding tool.
    Torque spec

    Mounting Bolts55 Nm (40 lb-ft)
12. 12

    Install oil pan
    Clean the oil pan and engine block mating surfaces completely. Apply a continuous 3mm bead of RTV silicone sealant to the oil pan flange. Position the new oil pan gasket. Install the oil pan within 10 minutes of applying RTV. Install all oil pan bolts finger-tight, then torque in a crisscross pattern from center outward to specification.
    ⚠Allow RTV sealant to cure for at least 30 minutes before filling with oil. Consult sealant specifications for full cure time.
    Torque spec

    Oil Pan Bolts12 Nm (9 lb-ft)
13. 13

    Final assembly and fluid filling
    Reinstall the engine splash shield and underbody panels. Lower the vehicle. Reinstall the serpentine drive belt. Install the engine mount through-bolts and torque to specification. Remove the engine support fixture. Install a new oil drain plug crush washer and install drain plug, torquing to specification. Install a new oil filter. Refill cooling system with Motorcraft Orange Coolant. Refill engine with 6 quarts of Motorcraft 0W-20 synthetic oil. Reconnect the negative battery cable.
    Torque spec

    Oil Drain Plug35 Nm (26 lb-ft)

    Mounting Bolts55 Nm (40 lb-ft)

Reassembly

1. Ensure all torque specifications were followed during reassembly
2. Verify no tools or parts were left in the engine compartment
3. Double-check all electrical connections are properly secured
4. Confirm coolant and oil levels are correct before starting engine

Verification

• Start the engine and verify oil pressure builds within 5 seconds (check oil pressure gauge or warning light)
• Allow engine to idle for 5 minutes while monitoring for leaks around timing cover and oil pan
• Check coolant level after engine reaches operating temperature and top off if necessary
• Verify no abnormal engine noises or vibrations are present
• Road test vehicle and recheck all fluid levels and inspect for leaks after test drive
• Clear any diagnostic trouble codes that may have set during the procedure

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