Is ABT Tuning Legal?

What Causes an Automatic Transmission to Shake and Stall at Idle?

There are many reasons why an automatic transmission may shake and stall at idle. Issues with any component in the intake system, ignition system, or fuel system can cause this phenomenon. Intake System: If parts like the air filter box, intake pipe, crankcase ventilation valve tube, or crankcase air intake tube become detached or leak, the only solution is to replace the faulty components. Ignition System: Problems such as a damaged ignition coil, faulty electronic ignition module, or capacitor issues may manifest as the engine starting initially but stalling after a while, then restarting only to stall again. Fuel System: Issues with the fuel system, such as clogged fuel injectors due to debris, often stem from poor-quality fuel. In such cases, it is advisable to refuel at reputable gas stations.

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What type of engine oil should be used for the three-cylinder Excelle?

The three-cylinder Excelle uses 5W30 engine oil. The main functions of engine oil are to reduce friction and wear of moving parts, remove sludge (one of the functions of dispersants) and varnish (detergents) from the engine, neutralize acids produced by fuel and lubricant oxidation (detergents), improve the sealing of piston rings, and cool the engine by carrying away heat from moving parts. Taking the 2021 Buick Excelle Facelift 1.5L Automatic Entry-Level model as an example, the car has a length, width, and height of 4609mm, 1798mm, and 1464mm respectively, with a wheelbase of 2640mm. The manufacturer of this car is SAIC-GM Buick, classified as a compact car with a naturally aspirated intake form.

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What is the W gear in an automatic transmission?

Automatic transmission W stands for Winter (Snow) mode, which can be used for starting on slippery surfaces. The wheel torque is equivalent to that of second gear, helping to prevent slipping on wet or icy roads, but it is not recommended for high-speed driving. In this mode, the engine's torque is restrained and does not quickly reach its peak, reducing the likelihood of wheel spin when driving on snow and effectively preventing skidding. For automatic vehicles equipped with an ESP system, the Winter mode is not simply starting in second gear. When Winter mode is activated in an automatic transmission, the vehicle's power output is effectively controlled in real-time within a range suitable for snowy conditions. The ESP (Electronic Stability Program) system, ABS (Anti-lock Braking System), and ECU (Engine Control Unit) work together based on wheel speed and steering wheel angle, using programmed control to optimize the vehicle's driving dynamics.

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How to Perform a High-Speed Run with an Automatic Transmission?

Methods for performing a high-speed run with an automatic transmission: You need to place the gear in D mode, fully depress the accelerator for acceleration, and the tachometer will temporarily reach the red zone. After that, shift gears and repeat the process. However, the high-speed run should not last too long. Maintaining the RPM in the red zone for an extended period can increase wear and even cause overheating issues, potentially damaging the transmission. A high-speed run essentially allows a new car to test its maximum performance capabilities, but the RPM should not exceed two-thirds of the design limit. Performing a high-speed run can help clear oil passages, burn off carbon deposits, and improve future performance. The purpose of driving at a certain high speed is to break in components such as wheel axles and the main reducer, but the speed should be controlled between 100 km/h and 120 km/h. Avoid pushing the speed too high.

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Will an Automatic Transmission Car Move Without Pressing the Accelerator?

Whether an automatic transmission car will move without pressing the accelerator depends on the gear position: 1. If the gear is in P (Park) or N (Neutral), the car will not move whether you press the accelerator or not; 2. If the gear is in any position other than P or N, the car will move even without pressing the accelerator. For an automatic car in D (Drive) gear without pressing the accelerator, it is equivalent to a manual transmission car in 1st gear without pressing the clutch—this is the starting gear, and the car moves very slowly. For manual transmission models, this function is achieved through the clutch. When starting the car, if the accelerator and clutch are properly coordinated, the car will slowly move forward, also known as "creeping." If the clutch is released too quickly, the car will not only fail to move but may also stall.

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How to Determine When Brake Discs Need Replacement?

There are two main methods to determine if your brake discs need replacement: 1. Check the brake pad thickness: Most brake discs have wear indicators, which are three small dimples distributed on the disc surface. Use a caliper to measure the depth of these dimples; when it reaches 1.5mm (meaning the total wear depth on both sides of the disc is 3mm), the brake discs should be replaced promptly. 2. Listen for sounds: If you hear a metallic scraping or squealing noise when lightly applying the brakes, the brake pads must be replaced immediately. This noise indicates that the wear indicators on both sides of the brake pads are directly grinding against the brake disc, meaning the pads have exceeded their limit. In such cases, while replacing the brake pads, you should also inspect the brake discs. Often, the discs are already damaged when this noise occurs, and simply replacing the pads won’t stop the noise. In severe cases, the brake discs may also need replacement.

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Is ABT Tuning Legal?

What Causes an Automatic Transmission to Shake and Stall at Idle?

What type of engine oil should be used for the three-cylinder Excelle?

What is the W gear in an automatic transmission?

How to Perform a High-Speed Run with an Automatic Transmission?

Will an Automatic Transmission Car Move Without Pressing the Accelerator?

How to Determine When Brake Discs Need Replacement?

How much fuel does a car consume when idling with the AC on for one hour?

Introduction to Car Gear Positions?

What is the idle speed of an automatic transmission car?

Can You Turn on Hazard Lights While Driving in Heavy Rain?