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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 778 (Rear Drive Axle/Differential - Ford 9.75-Inch Ring Gear) >> Diagnosis And Testing >> Rear Drive Axle and Differential >> Diagnostic Routines >> Diagnostic Routine - Noise (Clunk) On Changes In Speed Or Direction Of Power

Diagnostic Routine - Noise (Clunk) On Changes In Speed Or Direction Of Power

WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSTIC ROUTINE - NOISE (CLUNK) ON CHANGES IN SPEED OR DIRECTION OF POWER

Possible Component Reference/Action
  • Axle and pinion system
  • MEASURE total backlash. If end play and total backlash are within specification, INSTALL a new differential case assembly.
  • Differential pinion shaft
  • INSTALL a new differential pinion shaft and pin.
  • Pinion bearings
  • INSTALL new pinion and differential bearings and bearing cups.
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