Powertrain
Removal and Installation – Cylinder Head
In this manual: Powertrain
56steps
~341min
5/5difficulty
1special tools
Done 0 of 56
Special Service Tools / General Equipment
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303-476 (T94P-9472-A) Socket, Exhaust Gas Oxygen Sensor TKIT-1994-LM/M TKIT-1994-F TKIT-1994-FLM/FM |
| Oil Drain Equipment | |
| Hose Clamp Removal/Installation Tool | |
Materials
| Name | Specification |
|---|---|
| Motorcraft® High Performance Engine RTV Silicone TA-357 |
ALL-M4G323-A6 |
| Motorcraft® High-Temperature Nickel Anti-Seize Lubricant XL-2 |
- |
| Motorcraft® Penetrating and Locking Lubricant XL-1 |
- |
Removal
- Position the vehicle in NEUTRAL on the lift.
Refer to: Jacking and Lifting - Overview (100-02 Jacking and Lifting, Description and Operation). - Relieve the fuel system pressure.
Refer to: Fuel System Pressure Release (310-00C Fuel System – General Information, General Procedures). - Drain the cooling system.
Refer to: Engine Cooling System Draining, Vacuum Filling and Bleeding (303-03C Engine Cooling – General Procedures). - Remove the oil drain plug and drain the engine oil.
Use the general equipment: oil draining equipment
- Install the oil drain plug.
Torque: 21 lb-ft (28 N·m)
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- Remove the oil drain plug and drain the engine oil.
- Remove and discard the engine oil filter.
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- Disconnect the spring lock coupling.
Refer to: Spring Lock Couplings (310-00C Fuel System – General Information, General Procedures).
- Remove the nuts, bolts, and the exhaust gas recirculation (EGR) cooler inlet tube.

- Discard the EGR cooler inlet tube gaskets.
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- Disconnect the HO2S electrical connector.
- Remove the bolts and the wire harness brackets.
- Remove the HO2S.
Use the special service tool: 303-476 (T94P-9472-A) Oxygen Sensor Socket.
Material: Motorcraft® Penetrating and Locking Lubricant / XL-1

- Remove the bolts and the exhaust manifold heat shield.

- Remove the nuts and the bracket.

NOTICE: Make sure the flex exhaust pipe is not twisted or bent by force.
Support the flex exhaust pipe with a support film or a suitable bar.
- Remove the outlet clamp.
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- Make sure the mating surfaces are clean and free of foreign material.
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- Unscrew the exhaust manifold bracket mounting bolts.
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- Remove and discard the nuts. Reinstall the exhaust manifold.
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- Remove and discard the exhaust manifold gasket.

- Remove and discard the exhaust manifold studs.

- Remove the following components:
- Remove the air cleaner outlet tube.
Refer to: Air Cleaner Outlet Tube (303-12C Intake Air Distribution and Filtering, Removal and Installation). - Remove the intake manifold.
Refer to: Intake Manifold (303-01C Engine, Removal and Installation). - Remove the valve cover.
Refer to: Valve Cover (303-01C, Removal and Installation). - Remove the camshafts.
Refer to: Camshafts (303-01C Engine – 2.0L, Removal and Installation).
- Remove the air cleaner outlet tube.
- Remove the ground wire.

- Remove the valve lifters.
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- Inspect the valve lifters.

NOTICE: Place absorbent towels under the radiator hose to prevent coolant from contacting the ISC.
Disconnect the coolant hose.
Use the general equipment: hose clamp removal/installation tool..jpg)
- Remove the bolts and the cylinder head.
- Discard the bolts.

- Remove and discard the cylinder head gasket.

Installation
- Clean the cylinder block sealing surfaces.
Refer to: RTV Sealing Surface Cleaning and Preparation (303-00 Engine System - General Information, General Procedures)..jpg)
- Clean the cylinder block sealing surfaces.
Refer to: RTV Sealing Surface Cleaning and Preparation (303-00 Engine System - General Information, General Procedures).
- Check the cylinder head for distortion.
Refer to: Cylinder Head Distortion (303-00 Engine System - General Information, General Procedures). - Check the cylinder block for distortion.
Refer to: Cylinder Block Distortion (303-00 Engine System - General Information, General Procedures). - Apply a 6 mm (0.24 in) bead of silicone sealant.
Material: Motorcraft® High Performance Engine RTV Silicone / TA-357 (WSE-M4G323-A6)
- Install a new cylinder head gasket.

- Install the cylinder head and bolts. Tighten in the sequence shown in 5 steps.
Refer to: Specifications (Engine 303-01C, Specifications).
Torque:
Step 1: 62 lb-in (7 N·m)
Step 2: 133 lb-in (15 N·m)
Step 3: 33 lb-ft (45 N·m)
Step 4: 90°
Step 5: 90°
- Remove the excess sealant at the junction of the cylinder block and the cylinder head.

- Connect the coolant hose.
Use common service equipment: hose clamp removal and installation tool..jpg)
- Lubricate with clean engine oil and install the valve lifters.
Refer to: Specifications (Engine 303-01C, Specifications).
- Install the ground wire.
Torque: 133 lb-in (15 N·m)
- Install the following components:
- Install the camshafts.
Refer to Camshafts (Engine 303-01C, Removal and Installation). - Install the valve cover.
Refer to: Valve Cover (Engine 303-01C, Removal and Installation). - Install the intake manifold.
Refer to: Intake Manifold (303-01C Engine, Removal and Installation). - Install the air cleaner outlet tube.
Refer to: Air Cleaner Outlet Tube (303-12C Intake Air Distribution and Filtering, Removal and Installation).
- Install the camshafts.
- Install new exhaust manifold studs.
Torque: 150 lb-in (17 N·m)
- Install a new exhaust manifold gasket.

- Install the exhaust manifold and new nuts.
Torque: 41 lb-ft (55 N·m)
- Install the exhaust manifold bracket and bolts.
Torque: 18 lb-ft (25 N·m).jpg)
- Install the exhaust clamp.
Torque: 17 lb-ft (23 N·m).jpg)
- Install the bracket and nuts.
Torque: 35 lb-ft (48 N·m)
NOTICE: Make sure the flex exhaust pipe is not twisted or bent by force.
Remove the flex exhaust pipe support.
- Install the exhaust manifold heat shield and bolts.
Torque: 89 lb-in (10 N·m)
- Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formula in Apex. Install the HO2S sensor.
Use special service tool: 303-476 (T94P-9472-A) Exhaust Gas Oxygen Sensor Socket.
Material: Motorcraft® High Temperature Nickel Anti-Seize Lubricant / XL-2
Torque: 35 lb-ft (48 N·m)
- Install the wire harness bolts and brackets.
- Connect the HO2S sensor electrical connector.

- Calculate the correct torque wrench setting for the following torque. Refer to the Torque Wrench Adapter Formula in Apex. Install the HO2S sensor.
- Clean and inspect the gasket surface and studs. Replace the studs if necessary.
Torque: 159 lb-in (18 N·m).jpg)
- Install new exhaust gas recirculation (EGR) cooler inlet pipe gaskets.

- Install the EGR cooler inlet pipe and tighten the fasteners by hand.

- Torque:
1: 89 lb-in (10 N·m)
2: 18 lb-ft (24 N·m)
1: 18 lb-ft (24 N·m)
3: 89 lb-in (10 N·m)
4: 18 lb-ft (24 N·m)
3: 18 lb-ft (24 N·m)
- Connect the spring-lock coupling.
Refer to: Spring-Lock Couplings (310-00C Fuel System - General Information, General Procedures).
- Install a new oil filter.
Refer to: Specifications (Engine 303-01C, Specifications).
Torque:
Step 1: 71 lb-in (8 N·m)
Step 2: 180°
- Fill the engine with clean engine oil.
Refer to: Specifications (Engine 303-01C, Specifications).
- Fill and bleed the cooling system.
Refer to: Engine Cooling System Draining, Vacuum Filling and Air Bleeding (303-03C Engine Cooling - General Procedures). - Road test the vehicle.
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