Chevrolet Sonic manuals

Chevrolet Sonic Repair Manual: Scrub Radius Description

Chevrolet Sonic Repair Manual / Chassis / Wheels/Tires / Wheels / Scrub Radius Description

Ideally, the scrub radius is as small as possible. Normally, the SAI angle and the centerline of the tire and the wheel intersect below the road surface, causing a positive scrub radius. With struts, the SAI angle is much larger than the long arm/short arm type of suspension. This allows the SAI angle to intersect the camber angle above the road surface, forming a negative scrub radius. The smaller the scrub radius, the better the directional stability. Installing aftermarket wheels that have additional offset will dramatically increase the scrub radius. The newly installed wheels may cause the centerline of the tires to move further away from the spindle. This will increase the scrub radius.

A large amount of scrub radius can cause severe shimmy after hitting a bump. Four-wheel drive vehicles with large tires use a steering damper to compensate for an increased scrub radius. Scrub radius is not directly measurable by the conventional methods. Scrub radius is projected geometrically by engineers during the design phase of the suspension.

Replacement Wheels Description
Replace the wheel if any of the following conditions exist: The wheel exhibits excessive runout. The wheel is bent. The wheel is cracked. The wheel is severely rusted. The wheel is severe ...

Spare Tire Kit Installation
Installation Instructions Part Number 95280943 Procedure ...

Other materials:

Using the Tire Sealant and Compressor Kit without Sealant to Inflate a Tire (Not Punctured)
The kit includes: 1. Sealant Canister Inlet Valve 2. Sealant/Air Hose 3. Base of Sealant Canister 4. Tire Sealant Canister 5. On/Off Button 6. Slot on Top of Compressor 7. Pressure Deflation Button 8. Pressure Gauge 9. Power Plug 10. Air Only Hose If a tire goes flat, avoid further ti ...

Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement (1.4L)
Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement Callout Component Name Preliminary Procedures Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle. Remove the front bumper fascia opening ...

Fuel Tank Draining
Warning: Refer to Gasoline/Gasoline Vapors Warning. Note: The fuel tank must be drained with a suitable, commercially-available fuel removal unit and suction hose - follow safety regulations and national legislation. The fuel tank is fitted with a refill limit float valv ...

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