Ford F7RZ-9430-AA
Exhaust Manifold

The first step to address exhaust manifold service and repair requires heat shield removal together with upper bolt removal. The first step involves removing both the coolant hose bracket aside with the engine lifting eye before pulling out the engine oil level indicator tube. Sequence the service by first unclamping the coolant hose before unbolting both lower exhaust bolts. Interfering with the Heated Oxygen Sensor (HO2S) at the wiring harness during the repair is essential to avoid harm. You must disconnect the Three Way Catalytic Converter (TWC) from the exhaust manifold after taking off the HO2S wiring electrical connector. To perform this operation raise and support the vehicle before loosening the TWC bracket bolt so you can lower the TWC until its studs are beyond the exhaust manifold. Lower the vehicle before starting exhaust manifold removal. Check that the engine temperature has reached room level and then remove the four nuts from the exhaust manifold while discarding the old gasket. The gasket removal should be done with plastic manual scrapers instead of using grinding discs because they prevent damage to the aluminum sealing surfaces. Put the exhaust manifold in place while using a new gasket before you join the TWC to the exhaust manifold and then connect the HO2S electrical connector. During the process reposition the vehicle up and down while tightening the TWC bracket bolt before completing vehicle descent. The heat shield installation process should be followed by inserting the oil level indicator tube into the cylinder block then placing coolant hose bracket and engine lifting eye before tightening the upper and lower bolts with the coolant hose bracket.

The service procedure for an exhaust manifold requires removal of heat shielding plus upper bolts and then hose bracket next to the lifting eye. The service begins with removing the coolant hose bracket then follows with the engine lifting eye and engine oil level indicator tube after which comes the coolant hose clamp. The service continues by unfastening the lower bolts. The Heated Oxygen Sensor (H02S) at the wiring harness must be disconnected first to protect both sensors and harness from damage. Detach the exhaust manifold from the Three Way Catalytic Converter (TWC) by removing the HO2S wiring electrical connector first. Loosen the TWC bracket bolt after vehicle support and lowering the TWC will make stud clearance possible for the exhaust manifold. Prior to lower the vehicle remove the four nuts from the exhaust manifold while discarding the exhaust manifold gasket since the engine must be cooled. Plastic manual scrapers serve as the only approved tool for removing gasket material since they will not damage aluminum surfaces during installation. The procedure involves installing an exhaust manifold with a new gasket while reconnecting the TWC to the exhaust manifold before attaching the H02S electrical connector. Support the vehicle while tightening the TWC bracket bolt before returning it to ground position. The installation procedure ends by first installing the heat shield then putting in the oil level indicator tube into the cylinder block followed by positioning both the coolant hose bracket and engine lifting eye before installing the upper and lower bolts and securing the coolant hose bracket.

The exhaust manifold repair process should start with the removal of exhaust manifold heat shield followed by removal of upper bolts. Begin the task by unfastening first the coolant hose bracket and engine-lifting eye and the engine oil level indicator tube. Disassemble the process by removing the coolant hose clamp together with the lower bolts. The proper procedure to avoid damage requires disconnecting the Heated Oxygen Sensor (HO2S) through its wiring harness. Disconnection of the HO2S wiring electrical connector leads to Three Way Catalytic Converter (TWC) removal from the exhaust manifold. After raising and supporting the vehicle you should loosen TWC bracket bolt and lower TWC below exhaust manifold studs while lowering the vehicle down. The exhaust manifold becomes removable only after engine coolant reaches room temperature so the technician can remove four nuts while disposing of the manifolds gasket. During installation use plastic manual scrapers instead of abrasive discs because gasket removal should not entail surface damage of aluminum sealing areas. The exhaust manifold installation requires a new gasket while connecting TWC to exhaust manifold and reattaching the HO2S electrical connector. Put the vehicle back on the lift until its height is stable then fasten the TWC bracket bolt followed by returning the vehicle to the ground. Completion of the project requires you to place the heat shield then insert the oil level indicator tube into the cylinder block while directing the coolant hose bracket installation alongside engine lifting eye assembly before completing the process with upper and lower bolt installation and coolant hose bracket attachment.

The first step to address exhaust manifold service and repair requires heat shield removal together with upper bolt removal. The first step involves removing both the coolant hose bracket aside with the engine lifting eye before pulling out the engine oil level indicator tube. Sequence the service by first unclamping the coolant hose before unbolting both lower exhaust bolts. Interfering with the Heated Oxygen Sensor (HO2S) at the wiring harness during the repair is essential to avoid harm. You must disconnect the Three Way Catalytic Converter (TWC) from the exhaust manifold after taking off the HO2S wiring electrical connector. To perform this operation raise and support the vehicle before loosening the TWC bracket bolt so you can lower the TWC until its studs are beyond the exhaust manifold. Lower the vehicle before starting exhaust manifold removal. Check that the engine temperature has reached room level and then remove the four nuts from the exhaust manifold while discarding the old gasket. The gasket removal should be done with plastic manual scrapers instead of using grinding discs because they prevent damage to the aluminum sealing surfaces. Put the exhaust manifold in place while using a new gasket before you join the TWC to the exhaust manifold and then connect the HO2S electrical connector. During the process reposition the vehicle up and down while tightening the TWC bracket bolt before completing vehicle descent. The heat shield installation process should be followed by inserting the oil level indicator tube into the cylinder block then placing coolant hose bracket and engine lifting eye before tightening the upper and lower bolts with the coolant hose bracket.

Install the heat shield, insert the oil level indicator tube into the cylinder block, and position the coolant hose bracket and engine lifting eye before installing the upper and lower bolts and securing the coolant hose bracket.