···
Log in / Register

What Are the Reasons Why a Car Won't Start After Sitting for a Long Time?

4 Answers
DelJulia
07/29/25 3:19pm
Car won't start after sitting for a long time due to: 1. Dead car battery; 2. Low temperature causing reduced viscosity and rotation speed of engine oil; 3. Ignition system malfunction; 4. Insufficient fuel level; 5. Excessive carbon deposits inside the vehicle's engine; 6. Damaged fuel pump preventing fuel supply from the tank for combustion. Solutions include: 1. Check if the battery is dead; 2. Inspect whether the fuel pump is damaged; 3. Verify if fuel level is adequate; 4. Examine if engine sensors are faulty; 5. Check for ignition system issues; 6. Use a heating rod to warm up the engine oil.
Was this review help?
5
1
Share
LaQuinn
08/14/25 8:04am
My car hasn't been driven for over half a year, and there was no response when I tried to start it. The most common issue is a dead battery—batteries self-discharge over time, especially in winter. Last time this happened, I tried multiple times without success and eventually had to borrow a friend's charger to fix it. Additionally, fuel can also be problematic; gasoline can evaporate or degrade over time, clogging the fuel lines and preventing the engine from getting fuel. I've also encountered carbon buildup on the spark plugs due to moisture or dust accumulation, which affects ignition. Sometimes, starter or alternator failures can also cause trouble. Preventing this is simple—I recommend starting the car and driving it around for at least ten minutes each month to recharge the battery. Regularly checking the oil and filters can also help avoid issues. In any case, safety comes first—don't force it. It's best to take it to a professional shop for a technician to inspect, as they have the tools to diagnose the problem quickly.
Was this review help?
4
1
Share
Expand All
DiGiselle
10/11/25 7:44am
My beloved car has been idle for several months and suddenly won't start, which is really frustrating. The main issue is usually a dead battery, as prolonged lack of charging can completely drain it. I've also noticed fuel system problems, such as gasoline aging in the tank, forming gum deposits that clog the fuel injectors, or intake pipe blockages. Engine components like carbon buildup in the throttle body are also worth checking—I saw significant improvement after cleaning it last time. To avoid similar troubles, I start the car every two weeks and let it run for about ten minutes, which both charges the battery and lubricates the engine. If you encounter a no-start situation, don't panic—try push-starting or replacing fuses, and if that doesn't work, call a tow truck to take it to a repair shop safely. Remember, regular maintenance is key—don't let your car sit idle for too long.
Was this review help?
20
2
Share
Expand All
MacAnastasia
11/25/25 2:02am
The car won't start after sitting for long, with multiple possible causes. First, a dead battery is common - low voltage means no ignition. Fuel system issues also frequently occur, as evaporated or degraded gasoline prevents proper engine fueling. Ignition system problems like wet or carbon-fouled spark plugs can't be ignored either - I've cleaned mine multiple times before smooth operation returned. Additionally, clogged air filters or starter motor failures might interfere. For prevention, I start and drive the car every two months to maintain circulation. Technically, voltage checks and fuel line cleaning help prevent minor issues from escalating. In short, don't force it when problems arise - get it serviced promptly.
Was this review help?
8
2
Share
Expand All
More Forum Discussions

Do SUV Panoramic Sunroofs Need Tinting?

SUV panoramic sunroofs do not require tinting because the sunroof glass already has UV protection and heat insulation functions. Applying a tint would only reduce the interior light levels. Compared to standard car sunroofs, panoramic sunroofs have a much larger surface area, allowing occupants to see nearly the entire view above. Most modern vehicles with panoramic sunroofs feature two separate glass panels - front and rear - giving both seating rows access to the sunroof. Based on opening mechanisms, panoramic sunroofs can be categorized into: fixed panoramic sunroofs, segmented opening panoramic sunroofs, and full-opening panoramic sunroofs. The segmented opening type maintains a standard sunroof above the front seats while adding a fixed glass panel above the rear seats to enhance light transmission and achieve the panoramic effect.
18
1
Share

Why is the steering wheel slightly tilted to the right?

The reasons for the steering wheel being slightly tilted to the right include: insufficient tire pressure, uneven wear of tire treads, issues with the vehicle's suspension system, power steering problems, vehicle shock absorbers, and wheel alignment problems. Check if there is excessive play in the steering gear, as excessive free play in the steering wheel can cause it to drift automatically. Inspection method: Shake the steering wheel forcefully; there should be no play left or right, and the vertical free travel should not be excessive, with a good surface feel. Check the free play of the steering wheel and all pedals. The entire steering mechanism should be inspected, including: the gear oil in the steering gear, and whether there is a lack of grease in various ball joints, control arms, tie rods, drag links, etc.
10
2
Share

What is the fuel consumption of the 2021 Sylphy?

Maintenance outside 4S shops does not affect the warranty. Here are the maintenance precautions: 1. Choice of maintenance location: According to Article 9 of the Consumer Rights Protection Law: Consumers have the right to independently choose goods or services, and as car owners, they also have the right to choose vehicle maintenance operators. 2. Precautions for external maintenance: As consumers, they can freely choose repair shops for maintenance. As long as the vehicle damage is not caused by maintenance reasons, they can normally enjoy the warranty. If consumers fail to use, maintain, or repair the product correctly according to the instruction manual, resulting in damage, the operator is not responsible for the three guarantees. In other words, except for the maintenance location, other requirements cannot be changed.
14
4
Share

How Long Can You Drive with the Oil Warning Light On?

When the oil warning light comes on, you should not continue driving and must pull over immediately. The reasons for the oil warning light illuminating are as follows: Insufficient oil level: High engine temperature, oil pump wear leading to abnormal operation, improper internal engine coordination, excessive carbon buildup clogging the oil filter, or the pressure relief valve being set too low or improperly adjusted. Engine oil, also known as engine lubricant, is composed of base oil and additives. Low oil level: If the yellow oil warning light comes on while driving, indicating low oil level, this usually means the engine is low on oil. If the yellow oil light turns on, you should park the car in a safe location and check the oil level. If the dipstick shows the oil level is outside the normal range, you need to add oil.
5
5
Share

What is the difference between an auto trading company and a 4S store?

Here are the specific differences between auto trading companies and 4S stores: 1. Authorization: 4S stores are authorized to sell cars, while auto trading companies are not. A 4S store is an officially authorized dealer of a car brand manufacturer, typically selling only one brand's models, whereas an auto trading company can sell vehicles from multiple brands. 2. Business scope: Auto trading companies generally only handle car sales, insurance, and vehicle loans; 4S stores offer a wide range of services including car sales, repairs, parts, maintenance, and test drive appointments. 3. After-sales service: 4S stores integrate car sales, repairs, after-sales service, and parts sales into one comprehensive service, while auto trading companies do not provide after-sales service and lack sufficient after-sales guarantees.
4
5
Share

What Causes Brake Noise in Snowy Weather?

Specific reasons for brake noise in snowy weather: 1. Improper installation of brake pads: When installing new brake pads, the old brake discs were not resurfaced, resulting in a poor fit. Improper installation or failing to resurface the old discs before installing new brake pads will cause the new pads to rub directly against the uneven surface of the old discs, ultimately leading to uneven wear on the new brake pads. 2. Brake system malfunction: There may be inherent defects in the brake system itself, causing the brake pads to only partially contact the brake discs. This increases the pressure per unit area on the brakes, resulting in noise. It is recommended to check components such as the calipers and guide pins. 3. Presence of foreign objects: Foreign objects causing a mismatch in the contact surfaces, leading to noise.
11
2
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.