What is the normal range for vehicle deviation?

[McSebastian]

When a vehicle maintains steady driving over 1000 meters, a deviation within 5 meters is considered normal. Causes of vehicle deviation include: 1. Incorrect wheel alignment: In most cases, deviation can be resolved by performing a wheel alignment. However, if the issue persists after alignment, other factors must be considered. 2. Unequal tire pressure on both sides: Different tire pressures cause tires to vary in size, inevitably leading to deviation. 3. Front shock absorber failure: A failed front shock absorber results in uneven suspension heights during driving, causing uneven force distribution and deviation. Specialized shock absorber testers can be used to assess their condition; if disassembly is not possible, a stretching method can be employed to evaluate. 4. Chassis wear: Excessive wear or abnormal gaps in the vehicle's chassis components can easily cause deviation. Key areas prone to excessive gaps include steering linkage ball joints, support arm bushings, and stabilizer bar bushings. These parts should be thoroughly inspected for wear.