What Causes a Car to Stall at Idle?

1 Answers
VanZachary
07/29/25 4:00pm
Car stalling at idle can be attributed to the following reasons: 1. Function of the idle speed control valve: The idle speed control valve is primarily responsible for maintaining the car's idle speed. Its purpose is to adjust the idle speed based on the engine load during idling. The idle speed control valve is mounted on the throttle body and is controlled by the engine control unit to regulate the engine idle speed. When the engine speed deviates from the idle speed, the throttle valve adjusts the amount of air entering the intake manifold, which is mechanically operated by the accelerator pedal cable. 2. Causes: Air intake system leaks, low fuel pressure, clogged air filter, injector spray pattern issues or leaks, improper idle speed adjustment, faulty spark plugs, malfunctioning mass air flow sensor, ignition system problems, etc.
Was this review help?
11
4
Share
More Forum Discussions

Is Front-Wheel Drive or Rear-Wheel Drive Faster in a Straight-Line Acceleration?

Rear-wheel drive cars are faster in straight-line acceleration. During the initial launch, rear-wheel drive vehicles provide better traction on the rear wheels, allowing the car to accelerate more quickly. When a car accelerates, the vehicle's center of gravity shifts backward, causing the front end to lift. For front-wheel drive cars, this reduces the traction on the drive wheels, making it harder to achieve higher speeds in a short time. In front-wheel drive cars, the front wheels are responsible for both steering and driving the car forward, while in rear-wheel drive cars, the front wheels handle steering and the rear wheels handle propulsion. Straight-line drag racers often modify the drive wheels with wider tires to improve traction and minimize wheel spin during launch.
4
4
Share

Should the Great Wall C30 use 5w30 or 40?

The Great Wall C30 can use 5w30 engine oil, as all models of the Great Wall C30 are equipped with a 1.5-liter naturally aspirated engine. There is no need to use 40 viscosity oil for a naturally aspirated engine. Engine oil is referred to as the blood of the engine; without it, the engine cannot operate. When the engine is running, the oil forms a thin film on the surfaces of various components inside the engine, preventing direct contact and friction between them. If the engine components come into direct contact and friction occurs, it can generate a large amount of heat instantly, potentially causing engine damage.
12
2
Share

How to Fold the Side Mirrors on the Atenza?

The electric folding switch for the Atenza's side mirrors is located near the driver's side power window control area. The driver can fold the mirrors from inside the vehicle, and they will automatically unfold when the vehicle is started. More details are as follows: 1. As the widest component installed on a vehicle, side mirrors are most susceptible to impact in the event of a sideswipe. To minimize scratches, side mirrors need to have a folding function. 2. Foldable side mirrors can retract when passing through narrow sections, improving the vehicle's maneuverability. When the driver leaves the vehicle, the mirrors can also be folded, protecting the mirror surface, reducing parking space requirements, and effectively avoiding scrapes. 3. In most cases, the side mirror folding button is located in the electric switch area on the driver's side door, but some models are exceptions, such as those with the control in the gearshift base area. 4. Nowadays, mid-range and high-end vehicles generally feature foldable side mirrors. The folding function comes in two types: manual and electric. Manual folding requires the driver to reach outside the window or exit the vehicle to fold the mirrors, which is inconvenient and unsafe. This type is now rare. 5. The other type is electric folding, which is more common. Its advantage is that the driver can fold the mirrors from inside the vehicle, and they will automatically unfold when the vehicle is started. This feature is particularly useful for roadside parking in large cities, as folded mirrors save significant space and prevent the vehicle from suffering 'broken ear' damage.
10
1
Share

Can I Still Get Maintenance Without the Maintenance Manual?

Maintenance can still be performed even if the maintenance manual is lost. The manual can be reissued, but a fee may be required if it is lost before the first maintenance service, and a fee may also apply if lost after the first service. Pricing may vary among different 4S shops, so it's advisable to inquire at the store. The car maintenance manual is mainly for the owner's reference and has minimal impact on the actual maintenance of the vehicle. Additional information about maintenance is as follows: Definition: Car maintenance refers to the preventive work of regularly inspecting, cleaning, replenishing, lubricating, adjusting, or replacing certain parts of the car, also known as car servicing. Maintenance Scope: Modern car maintenance mainly includes the engine system, transmission system, air conditioning system, cooling system, fuel system, power steering system, etc.
17
1
Share

Can Underground Parking Lot Surveillance See Inside the Car?

It may not necessarily capture the situation inside the car. This depends on the resolution of the surveillance equipment, the technical level of the monitoring system, as well as the distribution and shooting angle. Below are the relevant details: Underground garage camera positions: Cameras are generally placed at corners, entrances/exits, and locations with wide fields of view. Most underground parking garages have cameras. Camera types: Cameras without infrared night vision may not capture clear images. Infrared night vision cameras can produce relatively clear footage. Cameras with built-in white lights, under good lighting conditions, can capture color images. Starlight full-color cameras can record images similar to daytime conditions without the need for additional lighting, producing full-color footage almost indistinguishable from daytime.
10
5
Share

Where is the cabin air filter located in the Changan V7?

The cabin air filter of the Changan V7 is located behind the interior trim panel on the left side of the front passenger seat. You need to remove this trim panel to access the air conditioning filter. The cabin air filter should be replaced regularly, typically every 10,000 kilometers for most vehicles. The Changan V7 is a new compact sedan from Changan, with body dimensions of 4530mm in length, 1745mm in width, and 1498mm in height, and a wheelbase of 2610mm. In terms of exterior design, the car features tension-filled tangent lines naturally integrated into curved surfaces, complemented by sharp side waistlines, a grille design resembling plucked strings, and a cohesive front headlight assembly that creates a refined and dynamic front fascia, exuding a sense of movement and grandeur like spreading wings.
8
0
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.