ISSUE Some 2009-2010-2020 Explorer, Mountaineer and Explorer Sport Trac vehicles equipped with a 5R55S transmission may exhibit a high frequency whistle noise at idle in any gear position with the transmission fluid temperature at or above 170 degrees Fahrenheit (76 degrees Celsius). ACTION Follow the Service Procedure steps to correct the condition.
ISSUE Some 2009-2010-2020 Explorer, Mountaineer and Explorer Sport Trac vehicles equipped with a 5R55S transmission may exhibit a high frequency whistle noise at idle in any gear position with the transmission fluid temperature at or above 170 degrees Fahrenheit (76 degrees Celsius). ACTION Follow the Service Procedure steps to correct the condition.