What could be the problem when the car doesn't accelerate even with the throttle fully pressed?

2 Answers
DiElijah
07/24/25 1:46pm
When the car doesn't accelerate even with the throttle fully pressed, it could be an issue with the transmission, or there might be a problem with the sensors or the computer inside the engine. In such cases, it is recommended to visit a professional institution or a 4S shop where technicians can use a diagnostic computer to read the fault codes. These codes can help the technicians quickly identify the faulty part and the cause of the issue. It is also normal for the electronic systems around the car engine to develop faults after prolonged use, as the temperature in the engine compartment is relatively high. Electronic systems operating in high-temperature environments for extended periods are prone to faults. If the electronic system is damaged, it can simply be replaced. When replacing, always opt for original equipment manufacturer (OEM) parts, as they offer better reliability and durability.
Was this review help?
16
4
Share
DeGarrett
08/11/25 7:43am
It's really frustrating when the car can't pick up speed. As a mechanic, I've encountered this issue quite often. The most common cause is fuel system problems, such as a faulty fuel pump or clogged fuel injectors, which lead to insufficient fuel supply and a weak engine. Don't overlook the air intake system either – a dirty air filter can restrict airflow, resulting in incomplete combustion. The ignition system can also be a culprit if the spark plugs are fouled or the coils are malfunctioning. Transmission issues, like slipping, can prevent power from reaching the wheels. Additionally, faulty ECU sensors might trigger a speed limiter as a safety measure. For safety, don't push the car too hard. You can check the air filter and fuses yourself, but other issues should be handled by a professional. Regular maintenance, including oil changes and carbon deposit cleaning, can help prevent major problems.
Was this review help?
14
2
Share
Expand All
More Forum Discussions

Where is the Verna tachometer sensor located?

The Verna tachometer sensor is located near the flywheel on the engine cylinder block. The working principle of automotive sensors is to convert various operating condition information during vehicle operation, such as speed, temperature of various media, and engine operating conditions, into electrical signals transmitted to the computer, ensuring the engine operates in an optimal state. The Verna is a compact sedan under Hyundai, with dimensions of 4300mm in length, 1705mm in width, and 1460mm in height, and a wheelbase of 2570mm. The 2020 Verna is equipped with a 1.4-liter naturally aspirated engine across all variants, delivering 95 horsepower and a maximum torque of 132 Nm, with a maximum power speed of 6000 rpm. This engine features D-CVVT technology and multi-point fuel injection, and utilizes an aluminum alloy cylinder head and block.
2
2
Share

How to Climb a Hill with a Tiptronic Transmission Car?

Methods for climbing a hill with a tiptronic transmission car: Switch to manual mode, then select 1st or 2nd gear to maintain the engine speed above 3000 RPM in a climbing state. This effectively prevents the automatic transmission from frequently shifting gears. Structurally, a tiptronic transmission mainly consists of a conventional gearbox, an electronically controlled clutch, an automatic gear-shifting mechanism, and an electronic control unit. The electronically controlled clutch automatically engages or disengages the clutch as needed, operated by the transmission ECU controlling a stepper motor to push the clutch fork for clutch engagement or disengagement. The automatic gear-shifting mechanism automatically engages the appropriate gear as required, with both stepper motors controlled by the transmission ECU. The gear lever setup is similar to that of a conventional automatic transmission, without a clutch pedal.
9
3
Share

How often should passenger vehicles undergo annual inspection?

Passenger vehicles are categorized into commercial and non-commercial use. Family cars fall under non-commercial vehicles, which are exempt from inspection for the first 6 years; vehicles older than 6 years require annual inspection; those exceeding 15 years must be inspected every 6 months. Taxis, as commercial passenger vehicles, require annual inspection within the first 5 years, and semi-annual inspections thereafter. Vehicle annual inspection refers to mandatory testing for all registered vehicles with official license plates and registration certificates. It functions as an annual 'health check' based on motor vehicle safety technical standards, helping to promptly eliminate potential hazards, encourage proper maintenance, and reduce traffic accidents - commonly known as vehicle inspection.
3
1
Share

Are Volkswagen and Mercedes-Benz the same company?

Mercedes-Benz and Volkswagen are not the same company; they are independent automotive brands. The Volkswagen Group currently owns brands such as Audi, Bentley, Bugatti, Lamborghini, MAN trucks, Porsche, Scania trucks, SEAT, Škoda, Volkswagen, and Volkswagen Commercial Vehicles. Below is a brief introduction to Mercedes-Benz and Volkswagen: 1. Mercedes-Benz is a world-renowned German automotive brand, founded in 1900 and headquartered in Stuttgart. It was established by Karl Benz and Gottlieb Daimler. Mercedes-Benz is globally recognized for its high-quality, high-performance automotive products. In addition to premium luxury cars, the company is also one of the world's most famous manufacturers of buses and heavy-duty trucks. 2. Volkswagen (German: Volkswagen) is an automobile manufacturer headquartered in Wolfsburg, Germany, and is the core enterprise of the Volkswagen Group, one of the world's four largest automobile manufacturers. In 2019, it ranked 9th on the Fortune Global 500 list.
7
2
Share

Where is the Nissan Teana sensor located?

The locations of the Teana sensors are as follows: 1. Oxygen sensor: The oxygen sensor is installed on the exhaust pipe and is used to monitor the post-combustion gases to determine whether the engine combustion is sufficient and whether the mixture is too lean or too rich. 2. Wheel speed sensor: It mainly collects the car's rotation speed to determine if there are signs of skidding. Therefore, there is a dedicated sensor to collect the wheel speed, usually installed on the hub of each wheel. Once the sensor is damaged, the ABS will fail. 3. Water temperature sensor: The water temperature sensor is generally installed next to the thermostat, converting the coolant temperature into an electrical signal. It increases the fuel injection volume or advances the ignition timing at low temperatures, while preventing detonation and retarding the ignition timing at high temperatures.
9
3
Share

What brand is the audio system in the Volvo V40?

The audio system in the Volvo V40 is from the Danish brand Dynaudio. Below is some relevant information about the Volvo V40: 1. The design inspiration for the rear of the Volvo V40 combines elements from the XC60 and C30 models. The boomerang-style taillights are almost identical to those of the XC60, while the rear windshield design is essentially a resized version of the C30's. The V40's shape is slightly more pronounced, with stronger three-dimensional effects, giving the rear a very full and robust appearance. 2. The Volvo V40 continues the brand's signature refined and minimalist design style, particularly featuring the iconic floating center console. Chrome accents on the doors, dashboard, central display, air vents, one-touch start button, and center console knobs visually enhance the interior's sense of sophistication.
9
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.