Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

Why is the car's brake pedal very hard?

2 Answers

LeDylan

07/24/25 4:43pm

Sudden hardening of the brake pedal is generally caused by issues with the brake booster pump, foreign objects adhering to the brake pads or calipers, or intervention of the vehicle's ABS system. If this situation occurs while driving, do not panic. The first thing to do is to release the accelerator to slow down and try pressing the brake pedal several times to see if braking force can be restored. Below are the relevant explanations: 1. Issues with the brake booster pump: If the car's brake pedal suddenly becomes hard while driving, it may be due to air leakage or blockage in the vacuum tube of the brake booster pump. In this case, stop the car immediately for inspection and replace the part if necessary. If the brake pedal suddenly becomes hard after the engine is turned off, it is usually because the brake pedal was pressed continuously after the engine was turned off, causing the vacuum force of the brake booster pump to be exhausted. This situation can be resolved by starting the engine to allow the brake booster pump to work again. 2. Intervention of the vehicle's ABS system: When the vehicle brakes sharply, the ABS system intervenes in the car's braking system to prevent the wheels from locking up and losing control, which can cause accidents. This intervention causes the brake pedal to have a rebound effect. This is a normal phenomenon, and gently pressing the brake pedal again will restore it.

Was this review help?

14

0

Share

DeEthan

08/11/25 9:16am

This brake is ridiculously stiff! I encountered this situation when I was just starting to drive—the brake pedal was as heavy as a rock, requiring full body strength to press. The most common cause is a faulty vacuum booster, which relies on engine vacuum to assist your braking. If there's a leak or the seal fails, there's no assistance at all. Other possibilities include insufficient or leaking brake fluid, such as a leaking reservoir or air bubbles in the lines, which can render the braking system ineffective. This is no minor issue—imagine how dangerous it would be to lose brakes on the highway. The last time I faced this, I immediately pulled over and found the booster hose had deteriorated. Replacing it fixed the problem. My advice: don’t keep driving—get it checked by a professional. Regular maintenance, like monitoring brake fluid condition, can prevent sudden failures. Remember, safety first—small issues can escalate into major accidents.

Was this review help?

4

5

Share

Expand All

More Forum Discussions

How to Remove Car Film?

Good quality film can be peeled off directly, while lower quality ones may leave residues after prolonged use. Here is some relevant information about car window tinting: 1. Introduction to Car Window Tinting: Car window tinting refers to applying a thin film layer to the vehicle's front and rear windshields, side windows, and sunroof. This film is also known as solar film or heat-insulating film. 2. Functions of Car Window Tinting: The primary purposes of window tinting include blocking ultraviolet rays, reducing heat transmission, preventing injuries from shattered glass, and minimizing glare. Additionally, the one-way visibility feature of solar films helps protect personal privacy. Furthermore, window tinting can reduce damage to interior items and occupants caused by UV exposure. Through physical reflection, it lowers the interior temperature, decreases the use of air conditioning, thereby reducing fuel consumption and saving costs.

How to Adjust the Height of Accord Seats?

To raise the seat, push the switch on the left side of the driver's seat upward. The main adjustments for Honda Accord seats include: 1. Height adjustment: Move the switch on the left side of the driver's seat up or down to adjust the seat height. 2. Forward/backward adjustment: There is an adjustment lever under the seat. Lift it up to move the seat forward or backward, then reset the lever after adjustment. Notes for seat adjustment: 1. While maintaining full control of the vehicle, adjust the driver's seat as far back as possible. Sit upright and lean back in the seat so that you can fully depress the pedals and comfortably grip the steering wheel without leaning forward. 2. Adjust the passenger seat as far back as possible to maximize the distance from the front airbag in the dashboard. If a passenger sits too close to the front airbag and it deploys, the passenger could be seriously injured or even killed. While maintaining control of the vehicle, sit as far away from the front airbag as possible.

What material are the spark plugs in a Mercedes-Benz C-Class?

The original spark plugs used in the Mercedes-Benz C-Class are NGK iridium spark plugs from Japan, with a replacement interval of 60,000 to 80,000 kilometers. All four spark plugs need to be replaced at the same time during each replacement. Spark plugs are a crucial component of a gasoline engine's ignition system. They introduce high-voltage electricity into the combustion chamber and create a spark by jumping the electrode gap, thereby igniting the combustible air-fuel mixture in the cylinder. Spark plugs are installed on the side or top of the engine. In earlier models, spark plugs were connected to the distributor via ignition cables. However, over the past decade, most car engines have transitioned to direct connection between the ignition coil and the spark plug. The main types of spark plugs include: standard spark plugs, extended insulator spark plugs, electrode spark plugs, seat-type spark plugs, pole-type spark plugs, and surface-gap spark plugs. Damaged spark plugs can lead to the following issues: difficulty starting the engine, reduced power, excessive exhaust emissions, and increased fuel consumption. It is important to replace spark plugs promptly when these symptoms occur.

What cleaning agents are best for cleaning car interiors?

For cleaning car interiors, you can use two-in-one cleaning agents, organic cleaning solvents, or Intense M-2001 shampoo. The cleaning of vehicle interiors mainly targets seats, floors, ceilings, and the dashboard. When using cleaning agents, it's essential to choose different products based on the varying textures of the interior materials. The two-in-one cleaning agent, also known as two-in-one shampoo, is a high-end surface cleaner. The term 'two-in-one' refers to its dual function of cleaning and care, combining cleaning capabilities with waxing properties to meet the requirements of quick cleaning and waxing. The two-in-one cleaning agent is primarily composed of various surfactants. The waxing component is a uniquely formulated water wax that forms a wax film on the paint surface during cleaning, enhancing the vehicle's shine and effectively protecting the paint. Organic cleaning solvents are mainly used to remove grease, lubricants, dirt, silicone polishes, rubber processing aids, and fingerprints from the vehicle's surface. Commonly used organic solvents in China include kerosene, gasoline, toluene, xylene, trichloroethylene, carbon tetrachloride, and No. 200 solvent gasoline. Imported organic solvents include Prep-sol and P-Kleano. When using organic solvents, avoid contact with plastic and rubber components to prevent aging. Additionally, before using imported cleaning solvents on thermoplastic acrylic paint, carefully read the product instructions. Due to the characteristics of organic solvents, it's crucial to select them appropriately based on actual needs in car detailing. Benefits of cleaning car interiors: Car interiors such as carpets, seats, and air vents are frequently exposed to humid air or water stains. Under specific conditions, these areas can become breeding grounds for bacteria, leading to mold growth and unpleasant odors, which not only affect the air quality inside the vehicle but also pose health risks. Cleaning the interior protects health and extends the vehicle's lifespan. Regular cleaning, disinfecting, and deodorizing of the car interior can effectively prevent various contaminants from damaging components like carpets, leather seats, and fabric parts. Moreover, using specialized protective products to clean and polish plastic, leather, and fabric items can significantly prolong the lifespan of these decorative elements.

How to Judge Distance Through Rearview Mirrors?

Judging distance through rearview mirrors is as follows: 1. Rear vehicle: When the rear vehicle's body has entered the danger zone to the left of the dotted line in the rearview mirror, it indicates that the rear vehicle is very close to your car, almost within 5 meters, and turning at this time is not allowed; when the left side of the rear vehicle's body is close to the boundary between the safety zone and the danger zone, we should be vigilant, but turning with the signal light on is still safe at this time. 2. Blind spot: Since the driver is located on the left side of the vehicle, the situation in the right lane is relatively more difficult to grasp than the left, and the blind spot of the left exterior rearview mirror is larger than the right. Therefore, when judging the distance of the rear vehicle, we need to be more cautious. 3. Distance: The position of the rear vehicle's image in the rearview mirror can generally indicate the distance between the rear vehicle and your car. Similar to visually measuring the distance of the front vehicle, the standards for judging the distance of the rear vehicle vary for different car models, and the owner needs to determine it based on the actual situation of their vehicle.

Is ETC vulnerable to fraudulent charges?

Installed ETC devices in vehicles are generally not susceptible to fraudulent charges because ETC requires the insertion of a dedicated ETC card, which can only communicate with authorized devices such as ETC equipment at highway entrances and exits. Precautions for using ETC: The ETC transaction sensing range is 8 meters. When encountering a stationary vehicle ahead, maintain a distance of over 10 meters to prevent automatic payment for the preceding vehicle in case its ETC device malfunctions or is absent. The ETC lane recognition speed is 20 km/h. Excessive speed may prevent the reading of vehicle device information, leading to failed deductions. Unauthorized removal or movement of the OBU device, detachment, or loosening of the ETC electronic tag will render it ineffective. It can be taken to the bank where the ETC card was issued or the highway service office for inspection. Non-deliberate loosening or detachment only requires reactivation. When using a debit card linked to ETC, insufficient balance may cause deduction failures. Follow on-site staff guidance to use the manual MTC lane with cash or card payment. Excessively thick car windshields may cause poor signal reception. This is particularly important for vehicles with repaired or replaced windshields after accidents or modified front windshields.

Trending Ranking

How Long is Considered as Stock Tires?

What is the difference between carlife and carplay?

What brand is the Scorpion tire?

What to Do When the Transmission Has a Fault?

What do the wheel hub data J and ET mean?

What Are the Types of Car Seat Cushions?

Which Button to Press for Defogging the Car in Rainy Weather?

What is the difference between Varta Silver and Blue labels?

Is the Volkswagen Phideon the Phaeton or the Phideon?

Can Hu-C license plates enter the Outer Ring Tunnel?

More Forum Discussions

What brand is Bravo tire?

Why can't the windows of the Geely Emgrand GL be raised or lowered?

What is the difference between Beijing A and Beijing B motorcycle license plates?

What Causes Low Secondary Air Flow in Mercedes-Benz 272 Engine?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.