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What Causes Vehicle Shaking During Startup?

1 Answers
MacReed
07/30/25 5:48am
The reasons for vehicle shaking during startup are: 1. Dirty throttle body; 2. Excessive carbon deposits in fuel injectors; 3. Poor ignition system performance, weak spark plug firing; 4. Abnormal fuel pump pressure; 5. Faulty or incorrect readings from the intake pressure sensor; 6. Worn engine mounts. The solutions for vehicle shaking during startup are: 1. Clean or replace the air filter; 2. Use a multimeter to measure resistance and replace wires with high resistance; 3. Maintain engine operating temperature within normal range; 4. Clean fuel injectors; 5. Replace spark plugs; 6. Clean fuel lines and idle control valve; 7. Replace engine mounts.
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How to set the Avalon 360-degree panoramic view to turn on automatically?

To set the Avalon 360-degree panoramic view to turn on automatically: Press the panoramic image button when parking, then tap the AUTO option on the screen. After this setting, the system will automatically activate when the vehicle speed drops below 20 km/h. The 360-degree panoramic view is a driving assistance system that allows drivers to reverse by watching the screen. This system enhances driving convenience and makes reversing and parking easier. Taking the Avalon 2021 2.5L Luxury Edition as an example: It is a mid-size 4-door 5-seater sedan under FAW Toyota, equipped with an 8-speed automatic transmission and a fuel tank capacity of 60L.
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How to Perform Transmission Memory Reset on the Passat?

With the ignition on, press the accelerator pedal all the way down, lightly tap the start switch to turn off the power, and do not release the accelerator. After power is off, release the accelerator and wait for a few minutes. The transmission will automatically complete the reset. Detailed steps for transmission memory reset: When the engine is cold, lightly tap the start switch to turn on the ignition. With the ignition on, press the accelerator pedal all the way down and hold for 5-10 seconds. Lightly tap the start switch to turn off the power, and do not release the accelerator during the power-off process. After power is off, release the accelerator and wait for a few minutes. The transmission will automatically complete the reset. About the Passat: The Passat (PASSAT) is a mid-size sedan designed by Volkswagen AG of Germany. It is classified as a B-segment car in Volkswagen's lineup. Since its debut in 1973, the Volkswagen Passat has swept the global automobile market with its high safety standards, classic design, and top-tier manufacturing quality over the past 40-plus years, with more than 20 million units produced and sold.
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What type of gasoline should be used for the Mercedes-Benz GLC?

The Mercedes-Benz GLC requires a minimum of 95-octane gasoline, as recommended in the user manual. Of course, using 98-octane gasoline is also acceptable. Generally, it is not advisable to use gasoline with a lower octane rating than what the manufacturer specifies or recommends. Long-term use of incorrect gasoline octane ratings can have the following effects: Using a higher octane gasoline in a vehicle designed for lower octane will not cause damage, but the increase in octane can alter the fuel's ignition point, leading to delayed combustion in the engine. This results in reduced engine power output and thermal efficiency, with the practical effect being poorer performance. Using lower octane gasoline in a vehicle designed for higher octane can cause engine knocking. This occurs because the significantly lower octane rating reduces the fuel's ignition point, causing premature ignition during the compression stroke. If combustion occurs before the spark plug fires, resistance is created during the upward stroke. This resistance makes the engine run very unevenly. If the knocking is mild, it may only increase noise without significant engine damage. However, noticeable knocking indicates severe engine conditions, affecting not only driving stability but also causing abnormal wear on pistons and cylinders, and in severe cases, cylinder scoring.
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Where is the key sensing area of Qoros car?

The key sensing area of Qoros car is located inside the glove box on the passenger side. The car remote key operates using coil induction technology. During the unlocking process, the vehicle's radio frequency transceiver verifies whether the key matches to determine if the engine can be safely started. Taking the 2021 Qoros 3 3S Sedan 1.5T CVT Leading model as an example, in terms of power, it is equipped with a 1.5-liter turbocharged engine, with a maximum power of 115 kW and a maximum torque of 230 Nm. Its dimensions are 4627 mm in length, 1839 mm in width, and 1445 mm in height, with a wheelbase of 2702 mm, a curb weight of 1425 kg, and the body structure is a 4-door 5-seater sedan.
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How to Use P, R, N, D, and S Gears?

The usage of P, R, N, D, and S gears is as follows: P gear is used when parking and turning off the engine; N gear is used for short stops without turning off the engine; D gear is used for driving forward; R gear is used for reversing; S gear is used for aggressive driving or overtaking. P stands for Park, R for Reverse, N for Neutral, D for Drive, and S for Sport mode. An automatic transmission car does not require the driver to manually shift gears; the vehicle automatically selects the appropriate gear based on driving speed and traffic conditions. The correct method to start an automatic transmission car is: 1. Connect the power and then start the car; 2. After ignition, press the brake, shift to D gear, release the handbrake, and gently press the accelerator to start; 3. After starting, accelerate appropriately according to road conditions.
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What is the fuel consumption of the Civic?

The 2021 Civic HATCHBACK 220TURBO manual transmission model, for example, has a fuel consumption of 6.4 liters per 100 kilometers. It is a compact 5-door, 5-seat hatchback equipped with a 6-speed manual transmission and a top speed of 210 kilometers per hour. The dimensions of this car are 4517mm in length, 1799mm in width, and 1434mm in height, with a wheelbase of 2700mm. It features a 5-door, 5-seat hatchback body structure, a top speed of 210 kilometers per hour, a maximum engine torque of 226 Newton-meters, and a maximum torque speed range of 1800 to 5500 revolutions per minute.
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