Oil Pan Replacement

This procedure covers removal and replacement of the engine oil pan on a 2021-2024 Ford F-150 with the 3.5L EcoBoost V6 engine, including draining oil, removing the oil pickup tube, and installing a new pan with gasket.

Warnings

Tools required

Parts

• Engine oil pan × 1 — Use OEM specification
• Oil pan gasket × 1 — Use OEM specification
• Oil drain plug crush washer × 1 — Use OEM specification
• Oil pickup tube O-ring × 1 — Use OEM specification

Fluids

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

Preparation

1. Ensure engine is completely cool and vehicle is on level ground
2. Disconnect negative battery terminal
3. Raise vehicle and support securely on jack stands at all four corners
4. Remove engine splash shield and skid plates if equipped
5. Install engine support bar across engine bay or attach engine hoist to lifting eyes

Procedure

1. 1

   Drain engine oil
   Position drain pan under oil drain plug. Remove drain plug and allow all oil to drain completely (approximately 15-20 minutes). Inspect drain plug threads for damage. Install new crush washer on drain plug and reinstall plug.
   Torque spec

   Oil Drain Plug35 Nm (26 lb-ft)
2. 2

   Remove necessary components for access
   Remove the front crossmember/subframe mounting bolts. Lower crossmember approximately 2-3 inches to provide clearance for oil pan removal. On RWD models, disconnect transmission cooler lines from their routing clips on the oil pan area if present. Remove any exhaust heat shields or brackets interfering with oil pan access.
   ⚠Support the crossmember with a transmission jack before loosening mounting bolts to prevent sudden dropping.
   Torque spec

   Mounting Bolts31 Nm (23 lb-ft)
3. 3

   Disconnect wiring and sensors
   Locate and disconnect the oil level sensor electrical connector on the oil pan. Remove any sensor mounting bolts as needed. Disconnect any other electrical connectors attached to or routing across the oil pan area.
   Torque spec

   Electrical Connector Bolts8 Nm (6 lb-ft)

   Sensor Bolts12 Nm (9 lb-ft)
4. 4

   Remove oil pan bolts
   Remove all oil pan mounting bolts in a crisscross pattern starting from the outer edges working inward. There are approximately 20-24 bolts around the perimeter. Keep bolts organized as some may be different lengths in specific locations.
   ℹ️Take note of bolt locations as some positions may use longer bolts than others.
   Torque spec

   Oil Pan Bolts12 Nm (9 lb-ft)
5. 5

   Remove oil pickup tube
   From inside the oil pan area, locate the oil pump pickup tube mounting bolts. Remove the bolts securing the pickup tube to the oil pump. Carefully lower the pickup tube and remove it with the oil pan. Inspect the pickup tube screen for debris.
   Torque spec

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

   Remove oil pan
   Carefully break the gasket seal using a plastic gasket scraper or gentle prying at the designated pry points (typically at the rear corners). Work slowly to avoid bending the oil pan flange. Lower the oil pan and maneuver it out from under the vehicle, being mindful of remaining oil residue.
   ⚠Do not use excessive force or metal pry tools that could damage the aluminum oil pan or engine block mating surfaces.
7. 7

   Clean mating surfaces
   Thoroughly clean the engine block oil pan mating surface using a plastic scraper and degreaser. Remove all old gasket material and RTV sealant. Clean the oil pan mating surface in the same manner. Use brake cleaner or degreaser to remove all oil residue. Surfaces must be completely clean and dry.
   ℹ️Any debris or old gasket material left on mating surfaces will cause oil leaks.
   Torque spec

   Gasket Surface Bolts23 Nm (17 lb-ft)
8. 8

   Inspect and prepare new oil pan
   Inspect the new oil pan for any shipping damage or defects. Verify all bolt holes are clear and threads are clean. Install the oil level sensor with new O-ring if removed from old pan. Transfer any brackets or fittings from old pan to new pan if applicable.
   Torque spec

   Mounting Bolts31 Nm (23 lb-ft)
9. 9

   Install new gasket and pickup tube
   Install the new oil pan gasket onto the oil pan, ensuring it seats properly in the groove. Install new O-ring on oil pickup tube. Position the pickup tube into the new oil pan and loosely install mounting hardware. Apply a small bead of RTV sealant at the front and rear main seal corners where the block meets the oil pan (if specified by service manual).
   ℹ️Some gaskets are adhesive-backed and stick to the pan; others may require a thin bead of RTV to hold in place during installation.
10. 10

    Install oil pan assembly
    Carefully raise the oil pan assembly into position, aligning it with the engine block. Start all oil pan bolts by hand, ensuring the gasket remains properly positioned. Do not tighten any bolts until all are started. Tighten bolts in a crisscross sequence from the center outward in three progressive stages: first to 6 Nm, then to 9 Nm, and finally to the specified torque.
    Torque spec

    Oil Pan Bolts12 Nm (9 lb-ft)
11. 11

    Secure oil pickup tube
    Torque the oil pump pickup tube mounting bolts to specification. Ensure the pickup tube is properly seated and not contacting the bottom of the oil pan.
    Torque spec

    Oil Pump Pickup Tube12 Nm (9 lb-ft)
12. 12

    Reconnect sensors and wiring
    Reconnect the oil level sensor electrical connector. Reinstall any sensor mounting bolts removed earlier. Reconnect all electrical connectors in the oil pan area. Ensure all wiring is properly routed and secured away from hot exhaust components.
    Torque spec

    Sensor Bolts12 Nm (9 lb-ft)

    Electrical Connector Bolts8 Nm (6 lb-ft)
13. 13

    Reinstall crossmember and accessories
    Raise the front crossmember back into position. Install and torque all crossmember mounting bolts to specification. Reconnect transmission cooler line routing clips if removed. Reinstall exhaust heat shields and any brackets removed for access.
    Torque spec

    Mounting Bolts31 Nm (23 lb-ft)
14. 14

    Fill engine oil and check for leaks
    Reinstall engine splash shield and skid plates. Lower vehicle. Remove engine support equipment. Fill engine with 6 quarts of Motorcraft 0W-20 full synthetic oil. Reconnect negative battery terminal. Start engine and allow to idle for 2-3 minutes while monitoring oil pressure. Shut off engine, wait 5 minutes, then check oil level and adjust as needed.
    ⚠Monitor closely for oil leaks during initial startup. Shut down immediately if leaks are observed.

Reassembly

1. Torque all fasteners to specification in the proper sequence
2. Allow RTV sealant to cure for at least 30 minutes before filling with oil if used
3. Double-check all electrical connections are secure before starting engine
4. Verify drain plug crush washer was replaced to prevent leaks

Verification

• Start engine and verify oil pressure light extinguishes within 2-3 seconds
• Allow engine to reach operating temperature and inspect oil pan for leaks
• Perform a test drive and recheck oil level after engine cools
• Inspect under vehicle after 24 hours and 100 miles for any signs of oil seepage
• Verify no warning lights are illuminated on instrument cluster

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