What are the causes of idling vibration when in D gear?

1 Answers
BrookeLee
07/25/25 3:24am
Excessive carbon buildup can cause idling vibration when in D gear. Reasons for engine idling vibration: Severe carbon deposits in the engine cylinders can lead to spark plug blockage and valve blockage, which directly causes the car to vibrate during idling. Fuel supply system issues with unstable oil pressure can easily result in unstable mixture concentration, leading to vibration and unstable idling. Solutions for idling vibration: If the engine carbon has been cleaned, the throttle body washed, and the oil pads and spark plugs replaced, but the car still vibrates during idling, unstable oil pressure might be the cause, and a professional should be consulted for inspection. Check the condition of the spark plugs, high-voltage wires, and ignition coils.
Was this review help?
13
4
Share
More Forum Discussions

What does the AC switch in a car's air conditioning mean?

The AC switch in a car's air conditioning refers to the air conditioning cooling switch. Pressing the AC button will gradually lower the temperature inside the car. The functions of a car's air conditioning system are: 1. Achieving a cooling effect through the continuous transformation and circulation of refrigerant; 2. Drawing in fresh external air to ventilate and refresh the interior, preventing windshield fogging; 3. Using engine coolant, waste heat, or heat generated by a burner as a heating source, which is then heated by the heater and blown into the car by the blower to raise the temperature for a warming effect. Maintenance methods for car air conditioning: 1. Clean the air conditioning vents promptly; 2. Maintain the air conditioning condenser in a timely manner; 3. Clean or replace the air conditioning filter element promptly.
17
1
Share

How to Remove the Rear Seats of a Passat?

To remove the rear seats of a Passat, first lift the rear seat slightly, then push it backward until you hear a click sound, and the rear seat can then be removed. Taking the 2020 Passat as an example, it is a mid-size sedan with the following dimensions: length 4933mm, width 1836mm, height 1469mm, wheelbase 2871mm, fuel tank capacity 68.5 liters, trunk capacity 521 liters, and curb weight 1470kg. The 2020 Passat is equipped with a 1.4T turbocharged engine, delivering a maximum horsepower of 150PS, maximum power of 110kW, maximum torque of 250Nm, and is paired with a 7-speed dual-clutch transmission.
10
1
Share

What are the body colors available for the Fengon 370?

The Fengon 370 is available in the following body colors: Elegant Red, Classic White, and Mocha Brown. Taking the 2020 Fengon 370 as an example, it is an MPV with the following dimensions: length 4565mm, width 1725mm, height 1810mm, and a wheelbase of 2725mm. Its curb weight is 1345kg. The 2020 Fengon 370 features a MacPherson strut independent front suspension and a five-link coil spring trailing arm rear suspension. It is equipped with a 1.5L naturally aspirated engine, delivering a maximum horsepower of 116PS, a maximum torque of 147.5Nm, and a maximum power of 85kW. It is paired with a 5-speed manual transmission.
2
3
Share

What is the sunroof matching method for the Passat B5?

The sunroof matching method for the Passat B5 is: Press and hold the sunroof button to open it fully without releasing, then continue pressing for a few seconds, repeating this process several times. The Passat B5 is the fifth-generation model of the Passat brand sedan from Volkswagen AG in Germany. Its body dimensions are 4608mm in length, 1743mm in width, and 1465mm in height, with a wheelbase of 2610mm. The Passat B5 is equipped with 1.4T, 1.8T, and 2.0L engines. The 1.4T engine has a maximum power output of 162kW, a maximum horsepower of 220PS, and a maximum torque of 350Nm.
10
2
Share

What are the reasons for the high fuel consumption of the Besturn B70?

The official combined fuel consumption of the Besturn B70 is 7.5-7.6L/100km, which is relatively economical. If the fuel consumption suddenly increases, it may be due to excessive carbon deposits in the engine or a faulty oxygen sensor. It is recommended to go to a 4S shop for inspection. The reasons for the increasing fuel consumption of the car are as follows: 1. The impact of temperature on fuel consumption fluctuations: Generally, in winter when the temperature is low, fuel consumption will increase somewhat, almost comparable to the fuel consumption when using air conditioning in summer. This is because the engine emits more heat at low temperatures. 2. The vehicle has not been maintained for a long time: Dirty engine oil and air filters can also lead to increased fuel consumption. Dirty engine oil results in poor lubrication, increasing the resistance of various moving parts of the engine, requiring more energy to overcome the resistance, thus increasing fuel consumption. 3. The spark plugs need to be replaced: Spark plugs are often overlooked. Although they can still be used, insufficient ignition energy can cause delayed ignition, missing the optimal ignition time.
2
0
Share

How to Achieve One-Touch Window Lift in the Levin?

To achieve one-touch window lift in the Levin: 1. Start the vehicle and locate the one-touch window lift button on the armrest; 2. Press the button down for 5 seconds, then pull it up for 5 seconds. Once the system records this, the one-touch window lift function will be activated. Taking the 2017 Levin as an example, it belongs to the compact car category with body dimensions of 4630mm in length, 1775mm in width, and 1480mm in height, a wheelbase of 2700mm, a fuel tank capacity of 53 liters, and a curb weight of 1300kg. The 2017 Levin features a MacPherson strut front suspension and a torsion beam rear suspension. It is equipped with a 1.2L turbocharged engine delivering a maximum horsepower of 116PS, a maximum power of 85kW, and a maximum torque of 185Nm, paired with an 8-speed continuously variable transmission.
5
1
Share
Cookie
Cookie Settings
© 2025 Servanan International Pte. Ltd.