What Causes High Idle Speed After Cleaning the Throttle Body?

What do the S and L gears in an automatic transmission mean?

Automatic transmission's S gear stands for SPORT, which is the sport mode, an upgraded version of the D gear with more powerful performance. The L gear stands for LOW, meaning low-speed gear. Here is some relevant information about S and L gears: 1. The S gear provides stronger power and is generally used for overtaking or climbing hills, with relatively higher fuel consumption due to increased fuel injection at high speeds. After completing overtaking or climbing, you can switch back to D gear to avoid wearing out the transmission with the S gear. 2. The L gear is a low-speed gear that can be used when going downhill, making full use of the transmission's engine braking to control speed, reducing the burden on the brakes, and minimizing the risk of brake fade. It can also be used when climbing steep hills to prevent frequent gear shifting, making the vehicle more powerful in climbing and protecting the transmission.

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Why is the engine coolant temperature low?

There are several main reasons for low engine coolant temperature: 1. Thermostat failure: If the thermostat malfunctions and remains open or opens prematurely, the cooling system will continuously operate in a large circulation mode or enter large circulation too early, making it difficult for the engine temperature to rise and resulting in an overcooled engine. 2. Cooling fan failure: Faults in the temperature controller, engine control unit, or wiring can cause the cooling fan to run continuously after engine startup, operate at maximum speed immediately upon startup, or activate both fans simultaneously, leading to excessive engine cooling. 3. Shutter failure: If the shutters remain stuck in the fully open position, it will cause the engine temperature to rise too slowly or result in excessively low coolant temperature.

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What Happens If Too Much Engine Oil Is Added?

Adding too much engine oil can cause the following hazards to the engine: 1. Reduced power output and aging of the crankshaft oil seal. Excessive oil increases the rotational resistance of the crankshaft, lowering the engine's power output and affecting the crankshaft oil seal. 2. Oil burning and emission failures. If there is too much oil, engine components will churn violently during operation, which not only increases internal power loss but also raises the amount of oil splashed onto the cylinder walls, leading to oil burning failures. 3. Increased carbon buildup and higher fuel consumption. Oil may flow into the engine's combustion chamber, and prolonged oil burning will cause carbon deposits in the engine, increasing the amount of carbon buildup in the combustion chamber. When carbon deposits accumulate in the car, power will decrease, and fuel consumption will rise. 4. Damage to the catalytic converter. As more oil enters the combustion chamber, exhaust emissions will worsen, severely impacting the lifespan of the catalytic converter. 5. Accelerated wear of components. This accelerates the wear of cylinders and pistons, thereby reducing the vehicle's service life.

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Is Chevrolet a Joint Venture Car Brand?

Chevrolet is a joint venture car brand, and its models include: Equinox, Cavalier, Cruze, Trax, Orlando, etc. Taking the 2021 Equinox Frontier Edition as an example, it is a mid-size SUV with body dimensions of: length 4646mm, width 1843mm, height 1684mm, and a wheelbase of 2725mm. The 2021 Equinox Frontier Edition is equipped with a 1.5T turbocharged engine, with a maximum power of 124kW at 5600rpm, and a maximum torque of 250Nm between 1700 to 4400rpm.

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Is Castrol Golden Protection Engine Oil a Semi-Synthetic Oil?

Castrol Golden Protection Engine Oil is not a semi-synthetic oil; it is a mineral oil. Semi-synthetic oil is a blend of mineral oil that has been purified through hydrogenation cracking technology. Mineral oil is a lubricant refined from petroleum, with its base oil being the residual bottom oil from the crude oil refining process after the separation of useful light substances, which is then further refined. Engine oil, or engine lubricant, serves several main functions: 1. To separate the surfaces of relatively sliding parts such as pistons and cylinders, main shafts and bearing bushes, thereby reducing wear on components; 2. To carry heat back to the oil tank and dissipate it into the air, assisting the radiator in cooling the engine; 3. To circulate carbon deposits, sludge, and worn metal particles from engine parts back to the oil tank, cleaning the working surfaces of the components.

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How Often Should the Battery of a Toyota Camry Be Replaced?

Automotive battery lifespan can be determined from three aspects: battery appearance, power observation, and battery voltage: 1. Inspect the battery appearance: A series of chemical reactions occur during battery usage, but normally no external changes are visible. If noticeable bulging, deformation, or swelling is observed on both sides of the car battery, or if white or green powdery substances appear on the battery terminals (these are battery oxides), these signs indicate battery issues, suggesting it may soon require replacement. 2. Check the power observation port: Most modern car batteries feature an observation hole, also known as the "magic eye." The color of this indicator varies by manufacturer—some use green, yellow, and black, where green indicates sufficient charge, yellow means slight discharge, and black signals near failure requiring replacement. Others use green, black, and white, with green representing adequate charge, black indicating the need for charging, and white meaning the battery needs replacement. Thus, different colors should be interpreted accordingly. 3. Measure battery voltage: A battery tester or multimeter can be used to measure the battery voltage to determine if replacement is necessary. Typically, gasoline car batteries are 12V, while some multi-cylinder diesel engines use 24V. Normally, the no-load voltage of a battery should not be too low; if it drops below 9V, it may cause difficulty or failure in starting the car.

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What Causes High Idle Speed After Cleaning the Throttle Body?

What do the S and L gears in an automatic transmission mean?

Why is the engine coolant temperature low?

What Happens If Too Much Engine Oil Is Added?

Is Chevrolet a Joint Venture Car Brand?

Is Castrol Golden Protection Engine Oil a Semi-Synthetic Oil?

How Often Should the Battery of a Toyota Camry Be Replaced?

Why is the reversing camera not displaying on the Infiniti QX50?

What are the correct steps to use hill start assist?

What is the normal operating pressure of a car air conditioner?

What to Do When Your Car Won't Start After Being Parked for a Long Time?