Suspension - Rear Load Leveling Leak Down

TSB 08-24-7

12/08/08

REAR LOAD LEVELING LEAKS DOWN IN EXTREME COLD WEATHER

FORD:
2007-2009 Expedition

LINCOLN:
2007-2009 Navigator

ISSUE
Some 2007-2009 Expedition and Navigators vehicles equipped with rear load leveling suspension, may exhibit air suspension leak down on one or both rear corners after extended periods of time in temperatures of -22 degrees Fahrenheit (-30 degrees Celsius) or below. The leak down is the result of premature wear of solenoid seat at low temperatures.

ACTION
Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

Determine that concern occurs at -22 degrees Fahrenheit (-30 degrees Celsius) or below, after sitting long periods of time, usually over night. If concern does not occur under these conditions, do not continue with this procedure.

The concern may not be duplicated if the vehicle has been sitting inside for over 15 minutes. Replace the air spring solenoid valve per Workshop Manual, Section 204-05: Vehicle Dynamic Suspension.





Parts Block

WARRANTY STATUS: Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty coverage limits/policies are not altered by a TSB. Warranty coverage limits are determined by the identified causal part.

OPERATION DESCRIPTION TIME

082407A 2007-2009 Expedition, 0.5 Hr.
Navigator: Replace ONE
Rear Air Spring Solenoid.
(Do Not Use With 5300A9
5300A, 12650D)

082407B 2007-2009 Expedition, 0.6 Hr.
Navigator: Replace BOTH
Rear Air Spring Solenoids.
(Do Not Use With 5300A9
5300A, 12650D)

DEALER CODING
CONDITION
BASIC PART NO. CODE
3B486 42





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