Some 2006-’10 Ford Explorer, Mercury Mountaineer and 2007-’10 Explorer Sport Trac vehicles built on or before August 12, 2009, and equipped with 5R55S transmission may exhibit a check engine light with DTC P0713 and/or various transmission solenoid body connector-related DTCs.
This may be due to water traveling down from the A/C drain into the solenoid body connector on the left side of the transmission.
Follow the Service Procedure steps to correct the condition.
1. Verify any transmission-related symptoms or transmission-related DTCs that are present.
2. Check the transmission solenoid connector for signs of water intrusion or corrosion that may be coming from the A/C drain (see Figure 1).
3. If present, clean the connector thoroughly and apply Motorcraft Electrical Grease or equivalent as needed.
4. Cut and install the patch kit over the connector (Figure 1).
Courtesy of Mitchell 1.