What are the reasons why the BYD S7 cannot accelerate when pressing the gas pedal?
3 Answers
The main reasons why the BYD S7 cannot accelerate when pressing the gas pedal include low-quality fuel, severe carbon deposits, excessively high engine temperature, intake pipe failure, and fuel system issues. Low-quality fuel: If the fuel quality is too low, it will not fully combust in the engine cylinders, resulting in reduced engine power and a noticeable lack of acceleration. In this case, higher-quality fuel should be used. Severe carbon deposits: When driving at low speeds for extended periods, carbon deposits can accumulate, leading to blockages in the fuel system and causing symptoms of poor acceleration. In such cases, carbon cleaning is necessary.
I've encountered the issue of the BYD S7 not accelerating properly several times myself. Last time on the highway, the car was crawling like a snail, which was extremely frustrating. The reasons are usually quite simple—the most common being insufficient fuel supply due to an aging fuel pump or clogged fuel lines, resulting in low oil pressure and reduced engine power. It could also be a severely dirty air filter blocking airflow, affecting combustion, which beginners often overlook. For automatic transmission cars like the S7, clutch slippage or insufficient transmission fluid can cause gear shifting issues. Don’t rush into expensive repairs—first check the easily accessible parts: listen for fuel pump activity, replace the air filter, and test oil pressure. These can all be DIY fixes, saving money and hassle. A safety reminder: if this happens on the road, pull over immediately and turn on your hazard lights to avoid rear-end collisions. My lesson is that small issues can escalate into costly repairs if ignored.
The BYD S7's throttle not responding is often due to electronic system or sensor failures. For example, if the throttle pedal position sensor is broken, the signal won't reach the ECU computer, and the engine won't respond. Or, if the throttle body is too dirty and stuck, the air flow becomes abnormal, leading to an imbalanced air-fuel mixture. Issues with the transmission control module are also common, especially in automatic transmissions which are prone to slipping and jerking. As someone who frequently works on cars, I recommend using a diagnostic tool to read OBD error codes, such as P0120, to pinpoint the problem. Don't neglect basic maintenance—check if the spark plugs and ignition system are aging. When troubleshooting, eliminate potential faults step by step, and avoid letting the car lose control on slopes. Ensure timely repairs for safety.
