Issue Summary:
- Some 1996-2003 Ford Explorers, 2003 Lincoln Aviators and 1997-2003 Mercury Mountaineers have “neutral tow” capability.
- 4R70W units in 2000 & later Ford and Lincoln/Mercury vehicles may have a rattle or clicking sound until the 1-2 shift is completed.
- Ford Motor Co. introduced a new rear-drive transmission with the designation 4R70E or 4R75E at the start of production for 2004.
- Technicians may have difficulty translating the readings for transmission-fluid temperature, since most scan-tool data for TFT is represented in DC voltage but most manuals show only resistance charts.
Some 1996-2003 Ford Explorers, 2003 Lincoln Aviators and 1997-2003 Mercury Mountaineers are “neutral tow” capable.
Refer to the charts in figures 1 and 2 for vehicles with neutral tow capability. Some models will require reprogramming to make neutral tow active; full instructions come in the kit.
- Neutral tow kit . . . . . . . . . . . . . . . .3L2Z-7H332-AA
- Neutral tow kit . . . . . . . . . . . . . . . .1L2Z-7H332-AA
- Neutral tow kit . . . . . . . . . . . . . . . .F77Z-7H332-AB
Refer to the charts in figures 1 and 2 for the correct part-number application.
A rattle or clicking sound is coming from the transmission until the 1-2 shift is completed. An odd-looking clip may be found on the builder’s bench after overhaul.
This may be caused by the intermediate-clutch pack rattling in the case when the clutch is released in first gear.
Install an intermediate-clutch anti-rattle clip in the location shown in figures 3 and 4.
- Intermediate-clutch anti-rattle clip . . . . . . . . . . . . . . . .YL3Z-7A609-AA
Beginning at the start of production for 2004, Ford Motor Co. introduced a new rear-drive transmission with the designation 4R70E or 4R75E, as shown in Figure 5.
This unit is another version of the current 4R70W unit. A turbine-shaft-speed (TSS) sensor has been added in the center of the case (see Figure 5) and aligned with a new sun-gear shell (see Figure 6).
Another change is the rear ring gear, which now has extended parking lugs that trigger the output-speed sensor (see Figure 7). These new transmissions are found only in F-150 and E-150 series vehicles for 2004. Vehicles with the 4.6-liter engine are equipped with the 4R70E, and those with the 5.4-liter engine are equipped with the 4R75E. The difference between the two units is a hardened planetary carrier in the 4R75E.
Improved forced downshifts.
TSS sensor – Has been added to the center of the case on the left-hand side of the transmission, as shown in Figure 5.
Transmission main case – Modified to accommodate the added TSS sensor (refer to Figure 5).
Sun gear and shell assembly – The new sun-shell assembly is easily identified by the new rivets that retain the sun shell to the sun gear, as shown in Figure 6. The new sun shell is manufactured with a different material from that of the previous shell. The new sun-shell material is less magnetic than that used in the previous sun shell.
Rear internal ring gear – Now is manufactured with extended parking lugs on the ring gear to trigger the output-speed sensor, instead of the previous design with holes in the ring gear, which also would require a strategy change in the PCM (refer to Figure 7).
None of the parts listed will interchange with the previous-design 4R70W parts.
- TSS sensor (not yet available) . . . . .3L3Z-7M101-AA
- Output-speed sensor, 1994-2000 (rectangular connector) . . . . . . . . . .F4AZ-7H103-AA
- Output-speed sensor, 2001-2003 (square connector) . . . . . . . . . . . . . .1L3Z-7H103-AB
- Output-speed sensor, 2004 models (0.100” shorter) . . . . . . . . . . . . . . . . .3L3Z-7H103-AA
The following charts are being supplied so that the technician in the shop will have an easy method to translate the readings for transmission-fluid temperature as seen through various scan tools. Most scan-tool data for TFT is represented in DC voltage, but most manuals show only resistance charts. Figure 8 shows temperature in degrees Fahrenheit, voltage, and resistance on a K-ohm scale.
The chart in Figure 9 shows temperature in degrees Celsius, voltage, and resistance on a K-ohm scale.
Figure 10 shows the formula to convert Fahrenheit to Celsius.
Figure 11 shows the formula to convert Celsius to Fahrenheit.
November 2004 Issue
Volume 21, No. 11
- Ford Explorer, Lincoln Aviator, Mercury Mountaineer: Availability of ‘Neutral Tow’
- 2000 & Later Ford, Lincoln/Mercury with 4R70W: Clicking Noise in First Gear
- Ford 4R70E/4R75E: New Turbine-Shaft-Speed Sensor
- Ford Motor Co.: Transmission-Fluid-Temperature Charts
