Solution for Steering Gear Noise in Baojun 730
4 Answers
Introduction to the causes and solutions for steering gear noise in Baojun 730: 1. Aging or excessive play in the steering tie rod ball joint: Replace the steering tie rod ball joint and perform a four-wheel alignment; steering gear dust cover oil leakage. Replace the dust cover or reapply grease. 2. Steering gear malfunction, possibly caused by excessive clearance in the steering gear meshing gears: The steering gear needs to be replaced. If the power belt is too loose or too tight or has aged, adjust the belt tension or replace the belt. Below is an introduction to steering gear noise: 1. Friction between plastic parts The steering gear is composed of various plastic parts. When turning, if the clearance is too small, there will always be different sounds, especially in new cars. It can be smoothed out after some time. If there are still different sounds after smoothing, the steering gear can be reinstalled. 2. Steering gear malfunction If a 'thunder-like' sound is emitted when turning the steering wheel, it may be due to excessive clearance between the steering gear and the gears. The steering gear can be replaced.
My 730 also had a creaking steering wheel before. When I took it to the repair shop, they found that the gears inside the steering gear were worn out. The mechanic said this model is prone to this issue, especially if frequently driven on rough roads. The solution was to replace the entire steering gear assembly—aftermarket parts cost over 1,000 RMB, while OEM parts were just over 2,000 RMB. They also checked the tie rods and ball joints, finding play in the ball joints, so those were replaced as well. Now the steering feels tight with no strange noises. Remember to get a wheel alignment after replacement. Avoid holding the steering wheel at full lock for more than five seconds when parking, as it can seriously damage the steering gear.
The most common cause of steering wheel noise is low power steering fluid. Open the hood and check the fluid level in the reservoir. If the fluid is black or foamy, replace it with the manufacturer-specified type. If the fluid is fine, inspect the high-pressure hose for leaks, as aging rubber hoses can cause squeaking. A lack of lubrication in the steering shaft universal joint can also cause clunking noises—apply some grease to fix it. If the steering gear mounting bolts are loose, tighten them immediately, or the noise will worsen over time. If the noise is particularly severe during cold starts, the steering pump may be faulty.
A friend encountered a similar situation where there was a clicking sound when turning the steering wheel. A roadside shop suggested replacing the steering gear, but I advised him to first check the intermediate steering shaft. Upon disassembly, it was found that the splines were worn out, and the issue was resolved by spending just eighty yuan to replace a small shaft. Additionally, tire shops have warned that vehicles with oversized rims or those that frequently scrape against curbs are prone to steering gear bearing failure. It's best to regularly check the torque of chassis bolts and promptly reapply anti-loosening adhesive if it cracks.
