What Are the Reasons Why a Car Won't Start and the Engine Doesn't Respond?

3 Answers
LaMackenzie
07/28/25 2:03pm
Car won't start and the engine doesn't respond due to: 1. Depleted car battery; 2. Low temperature causing reduced viscosity and rotation speed of engine oil; 3. Issues with the ignition system; 4. Insufficient fuel in the car; 5. Excessive carbon deposits inside the vehicle's engine; 6. Damaged fuel pump preventing fuel supply from the fuel tank for combustion. Solutions for a car that won't start and the engine doesn't respond include: 1. Check if the battery is depleted and recharge it; 2. Repair a damaged fuel pump promptly; 3. Check if the fuel level is sufficient and add enough fuel; 4. Inspect whether the engine sensors are damaged; 5. Replace spark plugs and ignition coils; 6. Use a heating rod to warm up the engine oil.
Was this review help?
16
1
Share
LondonAnn
08/11/25 6:37pm
Hey, I've also encountered the issue of a car not starting, and it's really frustrating. Usually, when the engine doesn't respond, the first suspect is the battery. Like last time, I forgot to turn off the headlights and drained the battery. No reaction at all when turning the key? It might be due to corroded battery terminals or loose connections—try cleaning them. Also, if the smart key's battery is low, it might fail to recognize, so you'll need to replace it. If you only hear a clicking sound when turning the key but no engine noise, it could be a faulty starter or relay issue, requiring a mechanic to inspect it. Oh, and make sure there's enough fuel—a broken fuel pump can also leave the engine silent. For safety, avoid repeated attempts to prevent damaging parts; calling a tow truck for a professional inspection is the safest bet. Regular maintenance of the battery and fuel system can prevent many headaches.
Was this review help?
20
4
Share
Expand All
DiAbigail
09/29/25 2:57am
As someone who often helps friends with car repairs, I think there are several common directions for a car not starting. Low battery charge or oxidized terminals are the most frequent issues—use a multimeter to check if the voltage is below 12 volts. If the car shows no response at all, inspect the relevant fuses in the fuse box to see if they're blown. Faults in the starting system, such as an aging starter motor or poor contact in the ignition switch, can also cause this—listen to the sound when turning the key to diagnose. Don’t overlook fuel-related issues; even if the fuel gauge is normal, a failed fuel pump will leave the engine silent. My advice is to start with the simplest solutions, like attempting a jump-start, before seeking professional help. Safety first—always park in a safe location and avoid risks. Regular oil changes and checking the battery’s lifespan can prevent sudden breakdowns.
Was this review help?
9
0
Share
Expand All
More Forum Discussions

What is the fuel tank capacity of the Buick Envision 1.5t in liters?

The fuel tank capacity of the Buick Envision 1.5t is 60 liters, as officially announced. The Buick Envision 1.5t requires 92-octane gasoline, with a fuel consumption of 7.2-7.3L per 100 kilometers. A full tank can cover a distance of 822-833km. During daily driving, it is necessary to always pay attention to the remaining fuel level in the tank. This is usually observed through the fuel gauge inside the vehicle. If there are no other issues, the fuel level will be accurately reflected on the gauge. The fuel gauge typically has 5 to 6 segments, and it is advisable to refuel when there are only 2 segments left to avoid running out of fuel midway. During actual refueling, the amount of fuel may exceed the calibrated capacity. This is because the fuel tank capacity specified by the car manufacturer is measured from the bottom of the tank to the safe limit, and there is still some space from the safe limit to the tank opening. This space ensures that the fuel inside the tank can expand when the temperature rises without overflowing. If fuel is added up to the tank opening during refueling, the actual refueling amount may exceed the calibrated fuel tank capacity.
14
5
Share

What are the body dimensions of the Volkswagen T-Cross?

The Volkswagen T-Cross is a compact SUV under the Volkswagen brand. The dimensions of this car are 4218 mm in length, 1760 mm in width, and 1589 mm in height, with a wheelbase of 2651 mm. Additional information about the Volkswagen T-Cross: Advantages: Sufficient power, thanks to the physical turbocharger paired with Volkswagen's classic dual-clutch transmission, delivering robust performance. The acceleration provides a noticeable push-back sensation. The size is just right, making it suitable for female drivers. The rear seating area is spacious, with a wheelbase reaching 2651 mm. The steering is light, making it easy and comfortable to operate. The panoramic sunroof is bright and large. Volkswagen's quality ensures a safer driving experience, with the three major components being reliable. Disadvantages: The trunk size is relatively small, but it becomes larger when the seats are folded down. The handbrake is mechanical, whereas many current models feature electronic handbrakes. The seats lack electric adjustment and memory functions.
19
0
Share

What are the common problems with Tianjin KR?

The cab is bumpy, the sound insulation is poor, and the brakes feel soft when carrying heavy loads. Below is an introduction to the Tianjin KR: Introduction: The Dongfeng Tianjin KR is a new generation of medium-duty truck independently developed by Dongfeng Commercial Vehicle Company. It is hailed as the value benchmark for medium-duty trucks in China due to its high technological content, high reliability, low emissions, and user-friendly design. The Dongfeng Tianjin series includes over 40 models, suitable for urban and intercity freight transport. Design Advantages: The Dongfeng Tianjin KR features the D530 cab design, which inherits the style of the Dongfeng Tianlong D310 cab. Compared to similar products, the Tianjin KR cab offers significantly improved operability and comfort. The interior width of the cab reaches 1876mm, providing spacious and comfortable accommodation.
19
0
Share

What type of engine oil should be used for Volkswagen CC?

Volkswagen CC recommends using 5W30 fully synthetic engine oil. Engine oil, also known as engine lubricant, serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption for the engine. Below is a detailed introduction to Volkswagen CC engine oil maintenance: Fully synthetic oil can also provide excellent protection for the car, ensuring the engine operates normally. When changing the oil for Volkswagen CC, it is recommended to add approximately 4.5L of oil. Be careful not to overfill the engine oil, as excessive oil can negatively affect engine performance and, in severe cases, impair normal engine operation. There are three types of engine oils used in cars: mineral oil, semi-synthetic oil, and fully synthetic oil. The service interval for mineral oil is about 5,000 kilometers, semi-synthetic oil about 6,500 kilometers, and fully synthetic oil about 10,000 kilometers. Different types of engine oils produce varying effects. Compared to the other two types, fully synthetic oil offers superior performance. During vehicle use, regular maintenance is essential. If the engine oil is excessively depleted, it can affect the car's performance and driving experience, lead to significant carbon buildup in the engine, cause the piston ring's compression ring to stick, reduce engine power, and increase fuel consumption.
14
2
Share

What is the actual fuel consumption of the Mercedes-Benz C-Class?

The fuel consumption of the Mercedes-Benz C-Class is 7.7-9.0L/km. Below is a relevant introduction to the Mercedes-Benz C-Class: Introduction: The Mercedes-Benz C-Class is the best-selling model in the family and offers the most comprehensive range among all Mercedes-Benz series. The new C-Class sedan is equipped with an active safety system, intelligent lighting system, preventive safety system, passenger safety protection system, and rescue tools, making it comfortable, refined, practical, and top-notch in safety. Exterior: Among all the changes, the front face, the connected arc-shaped dual-droplet headlights, and the redesigned taillights are the most eye-catching. Although the front face still maintains the traditional three-horizontal-one-vertical design of Mercedes-Benz, the new C-Class front face has a more three-dimensional and dynamic appearance. The transparent crystal-like xenon headlights are also standard on the C-Class. The new C-Class also features nano-technology-based scratch-resistant paint, which offers higher resistance to scratches, ensuring the paint remains as shiny as new.
19
3
Share

What are the length, width, and height dimensions of the Mercedes-Benz GLC?

The dimensions are 4764mm × 1898mm × 1642mm. The wheelbase is 2973mm. Below is some relevant information about the Mercedes-Benz GLC: Introduction: The Mercedes-Benz GLC can essentially be considered as the coupe version of the GLK. The main reason the GLC was not introduced until 2016 is that it is based on the new-generation GLK platform, which provides the GLC with more platform advantages, such as lighter weight and more modular components. Powertrain: In terms of powertrain, the new model will include multiple engine configurations. The gasoline engine options are expected to include a 1.8T, a 2.0T, and a 3.0L V6. The GLC combines the strength of an SUV with the elegance of Mercedes-Benz quite perfectly, with maximum output power ratings of 135 kW (GLC200 4MATIC), 155 kW (GLC260 4MATIC), and 180 kW (GLC300 4MATIC).
1
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.