Ford 7L3Z-8575-E
Thermostat

The initial step for servicing the thermostat involves discharging fire suppression systems if installed and draining all cooling system contents. Two bolts securing the coolant outlet adapter and hose must be removed before setting them aside. You should apply 25 Nm force (18 ft. lbs) to tighten installation bolts. Begin by removing the O-ring seal and the coolant thermostat from the intake manifold for inspection of the O-ring while performing a replacement if needed. The next operation will require installing a fire suppression system if the vehicle contains such system. The final step involves following the removal procedure in reverse order while filling the cooling system and bleeding it completely.

Draining the engine cooling system marks the first step when servicing the thermostat and thermostat housing on a 4.0L SOHC engine. Service the specified components by removing them with careful adherence to the detailed instructions for each item. The installation process should be reversed after component removal. After completion follow the process to fill and bleed the cooling system. Thermostat housing installation requires examining the gasket condition of the housing to decide if you should replace it with a new gasket. Regular checks of the gasket should be performed during thermostat housing cover installation to determine if a replacement is required.

Service of the thermostat requires draining the engine cooling system for all 4.6L 5.4L and 6.8L engine types. The next step entails disassembly of the air cleaner outlet pipe. Service providers must disconnect the upper radiator hose before working on the thermostat housing. Begin by unfastening the two bolts from the thermostat housing and placing it to the side then extract the thermostat along with discarding the O-ring seal. The packaging instructions guide the user through metal surface prep procedures that they need to perform on the sealing surfaces. Secure the new O-ring seal in the housing before torquing the bolts to 25 Nm (18 ft. lbs). The engine cooling system filling and bleeding procedure begins after the reinstallation of components when completing the removal process.

The first step for servicing 4.6L 5.4L and 6.8L engine thermostats requires draining the engine cooling system. Start the service operation by unfastening the Air Cleaner (ACL) outlet pipe. Partners operating on the thermostat housing should detach the upper radiator hose for the procedure. Unbolt the thermostat housing and put it aside before removing the thermostat together with the O-ring seal. You should perform surface metal preparation on sealing surfaces following the packaging directions before cleaning them. Use a new O-ring seal before securing the thermostat housing bolts at 25 Nm (18 lb-ft). End the installation by reversing removal steps and sensing up the engine cooling system yet performing a bleed.

Consumers must drain the engine cooling system partially before servicing and repairing the thermostat. The first step requires removal of the upper radiator hose from the water outlet adapter. First disconnect the securing bolts from the water outlet adapter before removing it. First remove the water thermostat along with its O-ring seal and dispose of the O-ring seal. Finish the installation task by proceeding through reverse steps of the removal process.

The procedure for repairing both the thermostat and thermostat housing for 4.6L engines starts with draining part of the engine cooling system. Begin by draining coolant from the system partially and then remove the air cleaner assembly before separating components according to detailed illustrations and tables. The removal of each component needs to follow the steps provided in the list. Completion of new parts installation requires reusing the opposite order of removal steps. Filling up and bleeding the cooling system becomes necessary after installation. You should apply clean engine coolant to the new O-ring seal for the thermostat before putting it into position.

The first step to service the thermostat for gasoline engines requires draining the engine cooling system. You must then unbolt the air cleaner outlet pipe. The upper radiator hose needs disconnecting from the thermostat housing when servicing this component. Take out two bolts from the thermostat housing before setting it aside to remove the thermostat with disposal of the O-ring seal. Follow the product instructions to apply metal surface prep and silicone gasket remover for cleaning the mating surfaces. vur another O-ring seal and secure the bolts at 10 Nm (89 lb-inch). The installation ends with a reverse execution of removal steps.

The engine coolant must be drained below the water thermostat before performing thermostat maintenance. The first step involves disconnecting the upper radiator hose from the water hose connection before using bolt removal to free the thermostat housing. Check the water outlet connection as the next step after eliminating the thermostat. The vehicle requires a complete cleaning of both mating surfaces before discarding the thermostat gasket. The servicing technician should examine and clean both the engine-side thermostat mating surface area. For proper replacement of the new thermostat follow protocol to set the index then put it exactly where it belonged originally. The new thermostat gasket requires Gasket and Trim Adhesive F3AZ-19B508-AA according to Ford specification ESE-M2G52-A with application for secure sealing around the thermostat. The thermostat installation commences by reversing the removal process which leads to filling up the cooling system system.

Dehydration of the engine cooling system should start by partially draining its liquid content. The service of the thermostat begins with disconnection of the upper radiator hose as well as the heater water inlet hose and heated PCV inlet hose from the water outlet adapter. Complete the procedure by separating the water hose. Perform the installation opposite to the removal process.

Service operations of the 5.4L (3V) engine thermostat start with draining all coolant from the engine cooling system. The next step requires removal of the air cleaner intake pipe. Service of the thermostat housing demands clamp release followed by upper radiator hose detachment from the housing. Read the instructions to remove the thermostat housing bolts followed by removing the housing before tightening it to 10 Nm (89 inch lbs.) upon completion. The service requires removing both the thermostat and O-ring seal together before discarding the previous rubber ring. Follow the removal steps in reverse order to install the components while using a lubricated new O-ring seal for the installation. Bleeding and filling the cooling system marks the conclusion of the service procedures.

A partial drain of the engine cooling system must happen before servicing and repairing the thermostat for the 5.4L (4V) engine. The service begins with removing the upper radiator hose and heater water inlet hose as well as the heated PCV inlet hose from the water outlet adapter. Follow the water hose removal step as next step. Perform the installation steps by following the reverse of the removal process.

Service of the thermostat begins with draining the cooling system. The two coolant outlet adapter bolts require hand-tightening at first before final tightening to achieve proper coolant outlet adapter seating. Screw out the two bolts from their positions and place the coolant outlet adapter alongside the hose next to them. The installation process requires the bolt tightening torque to be set at 25 Nm (18 lb-ft). Start by discarding the O-ring seal then extract the coolant thermostat from the intake manifold while cleaning every sealing surface with metal surface prep. The installation process ends when you perform the reverse steps of removal and complete cooling system filling and bleeding.

A partial draining of the engine cooling system needs to occur before starting thermostat service which leads to repair. Technicians need to detach both the heated PCV inlet hose along with the upper radiator hose and heater water inlet hose from the water outlet adapter. The water hose needs removal after disconnecting. Conclude the installation by reversing all steps from removal.

Thermostat service requires users to disable fire suppression in case of installation and to drain cooling fluid from the system. Laboratories must remove the two bolts attaching the outlet adapter along with the hose before setting both parts aside. The reinstallation requires you to tighten bolts to 25 Nm (18 ft. lbs.). To begin service of the thermostat continue by removing both the O-ring seal and the coolant thermostat from the intake manifold. During this operation check the O-ring seal condition before replacing it with an updated model. The replacement procedure should end with putting power back to the fire suppression system when needed. Complete the cooling system fluid maintenance by following the procedure for filling and bleeding the liquid.

Draining the coolant system first and then properly supporting and raising the vehicle is the starting point to service the 4.6L (4V) engine thermostat. First disconnect the coolant hose before the removal of bolts and the coolant outlet. First remove the thermostat then the O-ring seal to check the O-ring seal before installing a new one when needed. When servicing the coolant system of the 4.6L (4V) engine it is vital to refrain from using reused hose clamps because appropriately sized worm-style clamps should be used instead of constant tension clamps. The installation ends by following the reverse order of the removal process.

The first step for servicing the thermostat involves draining the cooling system. The first step when installing should be to tighten the coolant outlet adapter bolts by hand before applying final torque for proper seating of the adapter. Detach the two bolts to save the adapter and hose of the coolant. Follow the tightening protocol of 25 Nm (18 lb-ft) for the reinstall. The first step involves removing the O-ring seal alongside the coolant thermostat from the intake manifold for inspection of the O-ring seal before possible replacement. The installation process ends with reversing the removal steps followed by cooling system filling and bleeding.

The service procedure for the thermostat starts with draining coolant under the water thermostat position. First eliminate the engine appearance cover and then extract the bolts and water outlet adapter as well as hose before placing them out of the work area. Begin by removing the water thermostat along with its O-ring seal from the intake manifold after which inspect the O-ring and replace it with a new one if necessary. Reinstall the components by performing the opposite steps of removal.

Remove the engine appearance cover, then take out the bolts, water outlet adapter, and hose, positioning them out of the way.

Install a new O-ring seal.

Remove the water thermostat along with the O-ring seal from the intake manifold.

Remove the two bolts securing the coolant outlet adapter and hose, and set them aside.

Begin by draining the cooling system.

Install a new O-ring seal.

Remove the bolts securing the water outlet adapter.

Reconnect the upper radiator hose and fill the cooling system.

Install a new O-ring seal.

Remove the water outlet connection by taking out the bolts.

Remove the water thermostat along with the O-ring seal, ensuring to discard the O-ring seal.

Tighten the bolts to 10 Nm (89 lb-in) upon reinstallation.

Install a new O-ring seal if necessary.

Begin by draining the engine cooling system.

Use a new O-ring seal to position the water thermostat in the upper intake manifold.

Begin by partially draining the cooling system.

Remove the air cleaner outlet pipe.

Disconnect the upper radiator hose and remove the water outlet connection by taking out the bolts.

Fill the cooling system.

Disconnect the upper radiator hose.

Remove the coolant outlet connection by taking out the bolts.

Position a new gasket and the coolant outlet connection, then install the bolts.

Remove the two bolts, set the thermostat housing aside, and take out the thermostat, discarding the O-ring seal.

Ensure it is lubricated with clean engine coolant before installation.

Tighten them in two stages: first to 8 Nm (71 inch lbs.) and then an additional 60 degrees.

Remove the upper radiator hose.

Remove the water thermostat and the O-ring seal, discarding the O-ring seal.

Begin by removing the upper cooling fan shroud and the degas bottle.

Release the clamp and disconnect the upper radiator hose from the coolant outlet connection.

Reconnect the upper radiator hose.

Install a new O-ring seal and tighten to 10 Nm (89 inch lbs.).

Avoid using metal scrapers or abrasive tools.

Remove the thermostat and clean and inspect the water outlet connection.

Remove the Air Cleaner (ACL) outlet pipe and the Throttle Body (TB).

Inspect and clean the mating surfaces using metal surface prep and silicone gasket remover according to the product instructions.

Reverse the removal procedure and fill the cooling system.

Remove the thermostat and clean and inspect the water outlet connection.

Coat the new thermostat gasket with gasket and trim adhesive, ensuring that the new O-ring gasket is secure around the thermostat.

Ensure it is tightened to 10 Nm (89 lb-in) and replace the thermostat with a new one, lubricating the new O-ring seal with clean engine coolant.

Remove the air cleaner outlet pipe and the throttle body.

Ensure to tighten the bolts to 10 Nm (89 inch lbs.).

Disconnect the upper radiator hose from the thermostat housing.

Ensure the thermostat housing is seated evenly by hand tightening the two bolts before final tightening.

First, drain the coolant below the water thermostat.

Fill and bleed the cooling system.

Remove the bolts securing the thermostat housing and take off the housing.

Remove the water hose connection.

Inspect the O-ring seal and install a new one if necessary.

First, drain the cooling system.

Remove the water thermostat along with the O-ring seal from the intake manifold.

Remove the engine appearance cover.

Remove the coolant thermostat along with the O-ring seal from the intake manifold.

Remove the two bolts securing the thermostat housing and the thermostat, discarding the O-ring seal.

Inspect the O-ring seal and install a new one if necessary.

Inspect the O-ring seal on the thermostat housing cover and install a new O-ring seal if necessary.

Reverse the procedure for installation.

Remove the water thermostat along with the O-ring seal from the intake manifold.

Inspect the O-ring seal and install a new one if necessary.

Remove the bolts securing the thermostat housing cover.

Begin by partially draining the cooling system.

First, drain the coolant below the water thermostat.

Remove the water thermostat along with the O-ring seal from the intake manifold.

Remove the bolts securing the thermostat housing cover.