Ford 4R75E: Internal wire harness and solenoids

April 1, 2014
In 1998, with all AODE/4R70W transmissions, Ford decided to exchange a typical internal wiring harness for a molded circuit board.

In 1998, with all AODE/4R70W transmissions, Ford decided to exchange a typical internal wiring harness for a molded circuit board as seen in Figure 1. This affected the construction of the pass through case connector and all the internal solenoids.

The years have shown a number of electrical concerns with this “hard wire frame” configuration. As a result, in 2009, all 4R75E transmissions returned to the “soft” internal wire harness design (Figure 2). This, too, includes all new design internal solenoids.

None of these parts will retrofit back to previous models.

  • Internal Wire Harness.................................................................................9L3Z-7G276-A
  • Shift Solenoids 1 & 2 Assembly...................................................................9L3Z-7G484-A
  • Torque Converter Clutch Solenoid..............................................................9L3Z-7G136-A
  • Electronic Pressure Control Solenoid.........................................................9L3Z-7G383-A

Subscribe to Motor Age and receive articles like this every month…absolutely free. Click here

Figure 1
Figure 2
About the Author

Wayne Colonna | POWERTRAIN PRO Publisher

Wayne Colonna is president of the Automatic Transmission Service Group (ATSG) in Cutler Bay, Fla., and a frequent speaker/instructor for transmission training around the globe.

Sponsored Recommendations

AIRCAT Solutions - Small Ratchets With Enormous Power

Experience the power of AIRCAT's diverse ratchet selection. Each designed with a unique transmission gear for faster torque buildup and unbeatable performance. Their compact sizes...

Unmatched Power and Comfort: AIRCAT Grinders for Every Workspace

AIRCAT grinders deliver powerful performance with high RPM and efficient, quiet operation. Designed for comfort and control, they feature ergonomic handles, extended reach, and...

What Are the Advantages of Air Tools Over Cordless Tools?

Discover the advantages of air tools over cordless tools.

AIRCAT Tool Reviews: The Nitrocat 1056-XL Compact

Hear what senior autotechs have to say about the AIRCAT Nitrocat 1056-XL compact impact wrench. They’ll provide their reviews on tools they own and have been using every day on...

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!