Tech Tip: Vibrations on Volvos While Driving – UnderhoodService
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Tech Tip: Vibrations on Volvos While Driving

Wheel vibrations may occur if the wheel is not installed in the exact center position on the wheel hub. To avoid radial misalignment between the wheel and the hub, they must have the same diameters. It has been discovered on some cars that the wheel hubs (spare parts as well as production parts) may have a center cone with a “too small” outer diameter. If a wheel is installed on such a hub, it is possible that the wheel is installed with an offset of 1.5 mm (0.059″), which can cause wheel vibrations while driving.

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Affected Volvos: 1999-2006 S80 (184), 2001-’07 V70 (285) and V70 XC/XC70 (295), and 2001-’09 S60 (384).

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Wheel vibrations may occur if the wheel is not installed in the exact center position on the wheel hub. To avoid radial misalignment between the wheel and the hub, they must have the same diameters.

It has been discovered on some cars that the wheel hubs (spare parts as well as production parts) may have a center cone with a “too small” outer diameter. If a wheel is installed on such a hub, it is possible that the wheel is installed with an offset of 1.5 mm (0.059”), which can cause wheel vibrations while driving. figure 1

Service:
1. If a customer complains about wheel vibrations and it is hard or impossible to remedy the vibration with normal wheel balancing, then check and measure the center cone diameter on the wheel hub. See Fig. 1.

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The correct diameter = 65.0 mm (2.559”).
An incorrect ­diameter found on some cars = 63.5 mm (2.500”).

2. Check that the hub is not deformed, regardless of diameter. See Fig. 2.Figure 2
If this is the case, replace both the hub and the wheel on the corner of the vehicle where this deformation is found. It is possible that the wheel, in this case, caused the deformation of the hub.

For replacing the wheel, follow VIDA: INFORMATION > REPAIR > Springs and wheels > Wheels, tires, hubs > Wheels.
For replacing the hub, see step 3.

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3. If a hub with the incorrect diameter is found, ­replace only the hub with the incorrect diameter ­according to VIDA: INFORMATION > REPAIR > Springs and wheels > Wheels, tires, hubs > Hub and bearing.

4. Check that the wheels have a center diameter of approximately 65 mm (approximately 2.6”).

5. If a wheel with the incorrect center diameter is found, replace only the wheel with the incorrect ­diameter.

6. When replacing a hub for any reason, first measure the center cone diameter of the new hub in order to prevent repeat repairs. If a new hub is found with an incorrect center cone diameter, send in a Service Product Report (SPR) and do not use that hub. Do not send in an SPR for an original hub that has the incorrect diameter.

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Note: Include in the repair order text if the hub is original from the factory or if it is a spare part. Also indicate if the wheel was replaced.

Courtesy of Mitchell 1.

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