Ford 8G1Z-4N046-A
Oil Seal, Rear

Vehicle service of LH differential seals begins by hoisting the car with transmission in neutral gear and ignition off. After eliminating the retainers and the LH splash shield users can drain transmission fluid from the system through drain plug removal. The LH halfshaft must be taken out to utilize a Slide Hammer with Input Shaft Oil Seal Remover for removing and discarding the LH differential seal. The implementation of the Drive Pinion Oil Seal Installer enables correct installation of the new LH differential seal before repositioning the LH halfshaft. Compact thread-sealed drain plugging material on the plug threads followed by drain plug reinstallation with tightened limitations at 40 Nm (30 lb-ft). After removing the fill plug located on the side of the transaxle install clean transmission fluid so it rests at the fill plug hole line but clean up all spilled fluid before reinstalling the fill plug which needs a torque of 40 Nm (30 lb-ft). Check and fill the plug which faces the left side of the transaxle at its front area to measure transmission fluid level through the fill plug removal. Add fluid until it fills the bottom of the hole. To complete the procedure start the engine and confirm that both forward and reverse motions function appropriately.

Service of right-hand AWD differential seals starts with removing the Power Transfer Unit (PTU). You can extract the differential fluid seals by using the Input Shaft Oil Seal Remover and Slide Hammer. Position the new inner differential fluid seal first before securing it with both the Differential Seal Installer and Handle. The installation of the new outer differential fluid seal requires the same procedures as the preceding operation. Reinstall the PTU. Engage engine idling at 680-780 rpm when vehicle rests on a flat surface together with the transaxle set to PARK and brake pedal maintained for gear lever selection from each position before final returning to PARK. Clean the transmission fluid level indicator cap and remove its indicator before wiping it with a clean cloth. Check the transmission fluid level accurately by maintaining the vehicle at level ground while allowing the engine to reach operating temperature between 60°C-70°C (140°F-158°F). The fill plug nearby the indicator permits fluid additions in 0.25L (1/2 pt) increments but drivers must avoid overfilling because it will damage the transaxle. Read the fluid level at normal temperature against the top part of the fluid indicator since this mark indicates the exact fluid amount needed. When the engine operates at the cold temperature range of 15°C-25°C (59°F-77°F) the fluid level needs to be positioned at the marker located at the bottom. You should top off the transmission with cold-fluid range when Transmission Fluid Temperature (TFT) is low before checking the level as the transaxle reaches its normal operating temperature. The process ends by reinstalling the transmission fluid fill plug and torquing it to 39 Nm (29 lb-ft).

The initial step to service LH differential seals requires halfshaft removal from the LH side. A suitable dent puller should be used to extract the LH differential fluid seal after you make a small hole with a suitable awl through the seal. The new differential fluid seal goes in position first as you operate the Output Shaft Seal Installer to place the outer differential fluid seal before reattaching the LH halfshaft. To proceed with this operation set the transaxle to PARK position then place the vehicle on level ground while maintaining engine RPM at 680-780 above idle speed and keep your foot pressed on the brake. Operate the selector lever from position to position for gear engagement before placing it into the PARK setting. Before removing the transmission fluid level indicator cap you must clean it along with wiping the indicator with a fresh cloth. After setting the vehicle level with proper engine reaching 60°C-70°C (140°F-158°F), one can check the transmission fluid level accurately. To add fluid insert 0.25L through the fill plug positioned on top of the transaxle. The fluid amount should stop at the highest point of the indicator. When the transmission operates at its correct normal temperature range it should rest between the two highest marks on the indicator yet when the temperature falls to 59°F-77°F (15°C-25°C) the fluid level should be positioned at the base mark. Fill the transmission fluid to the cold range when TFT reading is under threshold but recheck the level when the transaxle achieves normal operating temperature. The procedure ends with reinstallation of the fill plug that requires tightening to 39 Nm (29 lb-ft).

Begin service of RH differential seals when the vehicle sits in NEUTRAL and rests on a hoist with ignition set to OFF. Begin with removing retainers along with the LH splash shield then proceed to drain transmission fluid by removing the drain plug. Next, remove the RH halfshaft. The Slide Hammer and RH Halfshaft Fluid Seal Remover can efficiently extract the RH differential seal which needs to be discarded. Use the Output Shaft Oil Seal (4X2) Installer to put in the new RH differential seal before you return the RH halfshaft into position. Reinstall the drain plug after cleaning its threads with a small amount of thread sealant and torquing it to 40 Nm (30 lb-ft). Use clean transmission fluid to accomplish filling the opening at the transaxle side until the fluid level meets the fill plug hole base but thoroughly clean the fill plug space afterward installation. Transmission fluid for the transaxle should be examined and added through the check and fill plug located on its left side near the front of the unit. The procedure requires removal of the fill plug followed by fluid addition until mark indicates the bottom of the fill plug hole. The procedure ends with engine start-up followed by check of proper forward and reverse functionalities.

Service of right-hand AWD differential seals starts with removing the Power Transfer Unit (PTU). You can extract the differential fluid seals by using the Input Shaft Oil Seal Remover and Slide Hammer. Position the new inner differential fluid seal first before securing it with both the Differential Seal Installer and Handle. The installation of the new outer differential fluid seal requires the same procedures as the preceding operation. Reinstall the PTU. Engage engine idling at 680-780 rpm when vehicle rests on a flat surface together with the transaxle set to PARK and brake pedal maintained for gear lever selection from each position before final returning to PARK. Clean the transmission fluid level indicator cap and remove its indicator before wiping it with a clean cloth. Check the transmission fluid level accurately by maintaining the vehicle at level ground while allowing the engine to reach operating temperature between 60°C-70°C (140°F-158°F). The fill plug nearby the indicator permits fluid additions in 0.25L (1/2 pt) increments but drivers must avoid overfilling because it will damage the transaxle. Read the fluid level at normal temperature against the top part of the fluid indicator since this mark indicates the exact fluid amount needed. When the engine operates at the cold temperature range of 15°C-25°C (59°F-77°F) the fluid level needs to be positioned at the marker located at the bottom. You should top off the transmission with cold-fluid range when Transmission Fluid Temperature (TFT) is low before checking the level as the transaxle reaches its normal operating temperature. The process ends by reinstalling the transmission fluid fill plug and torquing it to 39 Nm (29 lb-ft).