What Causes the Brake Noise in Trumpchi GS4?
4 Answers
The causes of brake noise in GAC Trumpchi GS4 are as follows: 1. New car break-in: The break-in of brake pads is a crucial process. Typically, after driving a few hundred kilometers, the brakes will feel more comfortable and the noise will disappear. 2. Sand in the brake disc: While driving, very fine sand particles may enter between the pad and disc, causing friction and resulting in noise. This usually does not require repair; simply driving a bit more can help the sand particles fall out. 3. Missing or damaged brake disc fixing screws: This can also cause brake noise. 4. Brake system malfunction: In this case, inspection and repair are necessary. 5. Brake disc wear: This occurs due to a dirty brake disc surface, uneven material density of the brake disc, excessively high working temperatures, or mismatched installation torque, leading to noise.
My Trumpchi GS4 brakes sometimes make a weird squeaking sound, which makes me curious about the reason. The most common cause is that the brake pads are worn too thin, making noise when pressed; if the brake disc surface has rust or scratches, it will also cause friction noise; for new cars or just after replacing the pads, the material hasn't been properly broken in, and excessive metal particles can cause loud noises. On rainy days, the humidity is high, and the water film on the brake disc increases, making the friction noise louder, but it will disappear after driving for a while, so no need to worry. More troublesome issues could be foreign objects stuck in the braking system or loose calipers not pressing tightly, which can cause persistent and worsening abnormal noises that need immediate repair. After experiencing this myself, I now check the pad thickness during every maintenance and ask the mechanic to clean dust buildup, which can prevent many minor issues. Remember, brakes are a matter of life and death, so don't overlook such details.
After driving the GS4 for a long time, you'll understand how annoying brake noise can be, especially the squeaking sound when reversing. I guess it's mainly due to the brake pad material—high-metal formulas tend to squeak in cold or damp conditions. When the pads wear thin, the built-in wear indicators scrape against the rotor as a warning. If the brake rotors are warped or rusted with uneven surfaces, stepping on the brakes will produce a clunking sound. After parking for a long time in rainy weather, the rotors may develop rust, so a few hard stops to grind it off usually helps. After installing new pads, don’t rush—drive slowly for a few hundred kilometers to let them bed in, and the noise will naturally fade. Also, avoid frequent hard braking or dragging the brakes on long downhill stretches, as excessive heat accelerates pad aging and noise. Regular cleaning of dust at the service center can save a lot of hassle.
Don't ignore brake noises—they could signal danger. Squeaking from worn brake pads is a warning sign; uneven friction occurs when rotors have hard spots or corrosion; improperly adjusted calipers cause unstable braking and louder noises. The worst-case scenario is gravel stuck in the wheel hub creating scraping sounds. Brief noises from wet rotors in rainy conditions are normal. However, persistent abnormal sounds may indicate front brake system failure, increasing the risk of skidding during emergency stops at high speeds. I recommend first checking if the pad thickness meets standards—replace immediately if too thin. If you hear unusual noises, drive slowly to a repair shop for inspection without delay. Remember, safety always comes first—regular maintenance ensures peace of mind.
