What Causes the Throttle to Be Hard to Press Down?

[EmmettRose]

This is mainly due to carbon buildup in areas such as the engine and throttle. When the car is cold, the carbon deposits make the throttle feel stiff, causing the throttle cable to not pull smoothly when pressed. As a result, it feels very hard, and a slight extra force may cause it to go too far. Below are some car maintenance tips: 1. Clean the car promptly: When driving or parked, the car easily accumulates dust and particles, especially after rain. The acidic substances in rainwater can corrode the car's paint over time, making it lose its shine or even fade. 2. Check and change the engine oil regularly: The normal operation of the car engine and other components relies on the lubrication and cleaning functions of the oil. Therefore, check the oil dipstick regularly to ensure the oil level is normal. Generally, new cars should have their oil changed every 5,000 kilometers, and the oil filter should be replaced if it is dirty. 3. Regularly check the levels of coolant, brake fluid, and windshield washer fluid: Coolant ensures the car runs normally in winter and prevents freezing. Brake fluid is essential for the braking system. Windshield washer fluid is used to clean the windshield. Ensuring these fluids are sufficient keeps the car running smoothly. 4. Pay attention to air purification inside the car: New cars need air purification to eliminate odors and reduce toxic gases like formaldehyde. Besides opening windows for ventilation, use air purifiers without secondary pollution for long-lasting effects. Regular maintenance can also include odor removal, such as eliminating smoke or exhaust smells. 5. Perform wheel alignment periodically: High mileage can sometimes cause the car to pull to one side, which may hide potential hazards. Timely wheel alignment can correct this issue. Even if there is no pulling, regular wheel alignment is beneficial. 6. Frequently check tire pressure: Proper tire pressure ensures stable driving. Overinflated tires increase the risk of a blowout and reduce comfort, while underinflated tires increase fuel consumption and tire wear. It’s best to keep a tire pressure gauge handy for regular checks. 7. Inspect wiring periodically: The car's normal operation depends heavily on wiring, including lights and ignition systems. Regularly check for aging or poor contact in wiring and repair it promptly to eliminate safety hazards.