Explorer Sport Trac 2WD V6-4.0L VIN K (2007)
Diagnostic Routine Chart
5. NOTE: If the conclusion of the road test points to an axle assembly section (ring and pinion or differential case) concern, carry out a visual
inspection of the rear axle.
Inspect the axle components.
1
Remove the axle assembly.
2
Remove the differential housing cover. Drain the axle lubricant through a white cloth. Check the fluid for:
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any foreign material.
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metal particles.
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burnt odor.
3
NOTE: When inspecting the axle, do not clean the components immediately. Cleaning may remove diagnostic evidence.
Inspect the axle components.
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Look for:
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loose fasteners.
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notches or visible steps or grooves created by wear.
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pitting or cracking along gear contact lines.
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scuffing or deformations.
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discolorations.
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nicks or ridges on gear teeth.
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Clean the axle components for inspection.
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Remove as much lubricant as possible with clean solvent. Wipe the components or blow them dry with compressed air.
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Re-inspect for: