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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1766 (Propeller Shaft) >> Diagnostic Information and Procedures >> Roughness or Vibration

Roughness or Vibration

WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
Roughness or Vibration

Cause Correction
The roughness or vibration occurs while driving the vehicle at various speeds.
A bent or dented propeller shaft Replace the propeller shaft. Refer to Propeller Shaft Replacement .
Undercoating is on the propeller shaft Clean the propeller shaft.
The tires are unbalanced at 48-80 km/h (30-50 mph) Balance or replace tires.
The universal joints are worn Replace worn universal joints.
Burrs or gouges are on the companion flange
  • Inspect snap ring locating surfaces on flange yoke.
  • Deburr or replace companion flange.
Excessive looseness at the slippage spine Replace necessary parts.
Distorted or damaged yokes or flanges Install new yokes or flanges.
The yokes are out of phase on two-piece propeller shaft system Re-index propeller shaft.
The driveline vibration is at 80 km/h (50 mph) Inspect propeller shaft for runout and missing balance weights.
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