Some 2005-2010 Mustang vehicles may exhibit a heavy fluid leak from the rear axle vent after hard acceleration.
Follow the Service Procedure steps to correct the condition.
Inspect the rear drive axle assembly for an oil leak from the rattle cap vent located on the passenger side axle tube.
If oil is dripping from the axle tube vent, a service replacement vent is available to correct this condition. Proceed to Step 2.
If only light oil residue is around the rattle cap vent, this is normal and do not proceed with this procedure.
Remove and discard the rattle cap vent from the axle tube. Clean any oil residue from the axle tube using isopropyl alcohol or suitable cleaner.
Install Differential Vent and torque to 15 lb-ft (20 N-m).
Refer to Workshop Manual, Section 205-02. Remove differential fill plug and inspect fluid level. Adjust fluid level to the bottom of the fill plug, if necessary. Tighten fill plug to 22 lb-ft (30 N-m).
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.
2005-2010 Mustang: Install Service Vent, Includes Time To Inspect, Remove Existing Vent, And Adjust Fluid Level (Do Not Use With Any Other Labor Operations)