Ford 7T4Z-9424-C
Intake Manifold, Lower

Start the process of servicing the lower intake manifold when the vehicle is set to NEUTRAL position on a hoist. First empty the coolant and remove the fuel rail alongside the Air Cleaner assembly. Remove the three bolts that connect the thermostat housing to the lower intake manifold then detach ten bolts from the lower intake manifold. The intake manifold and thermostat housing gaskets should be thrown away while ending every sealing surface with a thorough cleaning and inspection. The presence of metal debris in the intake manifold requires a new part to protect the engine from damages when replacement or repair occurred due to upper engine failure. Start installation by fitting new gaskets between lower intake manifold and thermostat housing while aligning the parts together and tightening their ten attaching bolts to 10 Nm (89 lb-in) torque according to the designated order. The three thermostat housing-to-lower intake manifold bolts should be installed next followed by torquing them to 10 Nm (89 lb-in). After reattaching the ACL assembly and the fuel rail you must conduct a cooling system fill-up and bleeding process.

The first step when servicing the lower intake manifold requires clean operations to avoid foreign material that leads to engine failure. The service process starts with removing the fuel rail and draining the cooling system fluid. Start service of the lower intake manifold by removing the three bolts securing the thermostat housing before removing all ten bolts holding the lower intake manifold steady. Discard the intake manifold and thermostat housing gaskets before cleaning the entire sealing surface area properly. You must inspect the intake manifold for metallic debris if upper engine failure required engine replacement or repairs. The presence of such debris means installing a new intake manifold to defend against potential engine harm. Apply new gaskets to the lower intake manifold then fasten it with ten bolts while tightening each one to 10 Nm (89 lb-in) as per the required sequence. Reinstall the three bolts securing the thermostat housing to lower intake manifold and tighten each of them to 10 Nm (89 lb-in). To conclude the procedure install the fuel rail before you fill then bleed the cooling system.

The service procedure for the lower intake manifold requires draining the cooling system and removing the fuel rail first. You must remove three bolts which secure the thermostat housing to the lower intake manifold followed by removing all ten bolts that attach the lower intake manifold to its place. You must dispose of both intake manifold and thermostat housing gaskets before proceeding to clean all sealing surfaces. The eight new gaskets must be installed for positioning the manifold before securing it with the ten bolts which need a torque of 10 Nm (89 lb-in). Use new gaskets to bolt the three components of thermostat housing-to-lower intake manifold while tightening them to 10 Nm (89 lb-in). To finish the procedure install the fuel rail and perform cooling system fill-up and bleeding operations.

Service of the lower intake manifold needs to start with cleaning operations because foreign material may trigger engine failure. The service process starts by removing the fuel rail followed by draining the cooling system. Remove first the three bolts that secure the thermostat housing to lower intake manifold before taking out the ten bolts that fasten the lower intake manifold. The service requires the replacement of both intake manifold and thermostat housing gaskets before cleaning and inspecting all sealing surfaces. New intake manifold and thermostat housing gaskets serve to position the lower intake manifold while ten bolts secure it in place with a specified sequence of tightening to 10 Nm (89 lb-in). Mount the three thermostat housing-to-lower intake manifold bolts and tighten them to 10 Nm (89 lb-in). The installation ends with reinstallation of the fuel rail while performing cooling system bleed and filling procedures.

Use new gaskets to install the upper intake manifold and secure it with the six bolts, tightening them in the specified sequence to 10 Nm (89 lb-in).

Remove the upper intake manifold support bracket bolt and the six bolts securing the upper intake manifold.

Reattach the wiring harness retainers, connect the PCV tube to the PCV valve, the brake booster vacuum hose to the intake manifold, and the EVAP tube to the intake manifold, securing it with the pin-type retainer.

Ensure the vehicle is in NEUTRAL and positioned on a hoist.

Ensure the vehicle is in NEUTRAL and positioned on a hoist.

Using new gaskets, install the upper intake manifold with the six bolts, tightening them in the specified sequence to 10 Nm (89 lb-in).

Remove the two upper intake manifold support bracket bolts followed by the six bolts securing the upper intake manifold.

Install the two thermostat housing-to-lower intake manifold bolts, tightening them to 10 Nm (89 inch lbs.).

Begin by removing the air cleaner outlet pipe.

Begin by removing the air cleaner outlet pipe, disconnecting the throttle body electrical connector, the evaporative emissions tube, the brake booster vacuum hose, and the PCV tube from the PCV valve.

Drain the cooling system and remove the fuel rail.