Why is there a hissing sound when braking slowly?

1 Answers
DiAyla
07/30/25 9:41am
Slow braking with a hissing sound is due to malfunctions in the caliper, brake disc, or brake pads. Here are the details: 1. Poor caliper reset can cause prolonged friction between the disc and pad, resulting in abnormal noise. 2. If there are foreign objects inside the brake pads or if the brake pads are too hard (containing too much metal), abnormal noise may also occur. 3. A common reason for the hissing sound during braking is thinning brake pads, causing direct contact between the brake drum and the vehicle, leading to metal-on-metal friction and noise. 4. If the brake pads are installed incorrectly or the wrong model is used, abnormal noise may also occur. The brake pads should be reinstalled, and it is recommended to have them installed at a professional auto repair shop.
Was this review help?
9
3
Share
More Forum Discussions

Does a larger engine consume more fuel than a smaller one?

Under the same conditions, vehicles with larger engine displacements tend to consume more fuel. Fuel consumption is also influenced by the following factors: Body design: As vehicle speed increases, the encountered air resistance grows exponentially, with air resistance being directly proportional to the square of the speed. A significant portion of the engine's power output is used to overcome wind resistance, thereby increasing fuel consumption. Many modern vehicle designs strive for aerodynamic shapes and feature hidden door handles to reduce wind resistance, achieving lower fuel consumption and energy savings. Vehicle weight: The heavier the vehicle, the more work the engine must perform, requiring greater fuel consumption. Therefore, larger vehicles and SUVs tend to be more fuel-intensive. Carrying too many items in the trunk can also significantly increase fuel consumption, so it's advisable to clean it out promptly.
12
1
Share

What is the difference between 235 and 245 tires?

The differences between 235 and 245 tires are as follows: 1. Different tire widths: The 245 tire has a width of 24.5 centimeters. The 235 tire has a width of 23.5 centimeters. 2. Different aspect ratios: The aspect ratio of the 245 tire is 45, meaning the tire thickness is 110.25 millimeters. The aspect ratio of the 235 tire is 50, meaning the tire thickness is 117.50 millimeters. 3. Different speed ratings: The speed rating of the 245 tire is Y, indicating a maximum speed of 300 km/h. The speed rating of the 235 tire is W, indicating a maximum speed of 270 km/h.
2
3
Share

How will the dashboard indicate low engine oil?

The engine oil warning light is used to display the level and pressure status of the engine oil, primarily in red and yellow colors. Below are the reasons why the engine oil warning light may illuminate. 1. Reduced oil pressure: Insufficient engine oil quantity decreases the oil pump's output or prevents the pump from drawing oil due to air intake, leading to reduced oil pressure. 2. Drop in oil pressure: Overheating of the engine can thin the oil, causing significant loss through component clearances and resulting in a drop in oil pressure. 3. Oil starvation: Damage to oil pump components or excessive clearance due to wear, assembly issues, etc., can prevent the oil pump from drawing oil or cause oil starvation faults.
15
0
Share

What to Do When the Audi A6 Fails to Start?

Audi A6 fails to start because the ignition switch is not in place or is damaged, or the wire from the ignition switch to the starter relay is disconnected. Below is a detailed introduction to the Audi A6: 1. The Audi A6 is a domestically produced high-end luxury business car launched by FAW-Volkswagen. 2. The BOSE sound system, TV, DVD, and refrigerator in the Audi A6 are all world-class branded products. 3. The Audi A6's multitronic continuously variable manual-automatic transmission uses a metal chain drive system, completely replacing the traditional gear set transmission method, resulting in a completely smooth power output without any jerking, making it smoother than a regular automatic transmission.
5
3
Share

Can dash cams only see the front?

Dash cams are not limited to only capturing the front view. Here are the details: 1. Types: If a dash cam has a front-facing camera, it can only record the approximately 100° field of view in front of the vehicle. However, if the dash cam is equipped with dual cameras, it can capture both the front and rear views. During installation, note that there are two wiring connectors—one for the front and one for the rear. The rear camera should be installed near the license plate light, and the wiring can be routed along the vehicle's rubber trim. 2. Function: A dash cam is a device that records video, audio, and other relevant information during vehicle operation. Once installed, it can document the entire driving process, including video images and sound, which can serve as evidence in traffic accidents.
16
3
Share

Is the Tire Mounted Backwards if the Production Date is on the Inner Side?

The tire is not mounted backwards if the production date is on the inner side. Here is relevant information about tire production dates: 1. How to check: The production date of a tire is marked on the outer side of the tire. You don't need to flip the tire over; it's on the outer side, on one side of the tire wall. There is a set of numbers, and the last four digits of this mark provide information about the production date. It consists of four digits "AABB". 2. Definition: The 11-digit number and letters immediately following the "DOT" on the sidewall of the tire represent the identification number or serial number of the tire. The last four digits of the serial number indicate the production date of the tire.
3
5
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.