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What Causes Car Transmission Overheating?

2 Answers

DeWalter

07/28/25 10:42pm

The reasons for transmission overheating are as follows: 1. Insufficient lubricating oil in the transmission or the use of lubricating oil with an incorrect specification, excessively tight bearing assembly, overly tight gasket and washer assembly, or excessively small meshing clearance of newly replaced gears. 2. To avoid affecting usage, it is recommended to promptly contact a 4S shop for repair and handling. 3. Additional Information: During a stop for inspection while driving, touch various parts of the transmission housing by hand to check the temperature. If the hand can tolerate the temperature, it indicates normal oil temperature; if the hand cannot tolerate it, it indicates an overheating issue. If transmission overheating is confirmed, first check the lubricating oil level. If it is insufficient, replenish it as required; if the oil is too thin or deteriorated, it should be replaced.

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DelEllie

08/12/25 3:10am

There are several common causes of overheating in automotive transmissions. Insufficient or degraded oil is the primary issue, as low or contaminated transmission fluid increases friction, leading to heat buildup. Cooling system failures, such as a clogged radiator or malfunctioning fan, also prevent heat dissipation. Driving habits play a significant role—prolonged heavy towing, speeding uphill, or rapid acceleration can overload the transmission and cause overheating. Internal component wear, like damaged gears, further exacerbates heat generation. From my experience, overheating often occurs after long summer trips. Symptoms include reduced power and a spike in fuel consumption when temperatures rise excessively. I recommend checking fluid levels and color every 5,000 km to prevent severe damage from overheating. Regular maintenance can significantly extend transmission lifespan.

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How Long is the Shelf Life of Opened Motor Oil?

Motor oil that remains after car maintenance but has been opened has a shelf life of about one year. The shelf life of motor oil is divided into three periods: 1. Unopened. This type of motor oil has a shelf life of approximately five years. 2. Remaining motor oil that has been opened after car maintenance. This type of motor oil has a shelf life of about one year. 3. Motor oil poured into the engine. This type of motor oil has a shelf life of about six months. Here are the storage methods for motor oil: 1. The storage environment for motor oil bottles must be clean and dry, ensuring no exposure to sunlight to prevent oxidation reactions in the oil. 2. After opening, motor oil must be sealed immediately. After completing car maintenance, a clean plastic film should be placed over the bottle mouth, and the cap should be tightly screwed on. 3. When adding the remaining motor oil from the last maintenance, do not pour all of it into the engine. Keep a portion aside. Generally, after long-term storage, there may be trace amounts of water at the bottom of the oil bottle, which could adversely affect engine performance if added to the engine.

Why Does the Steering Wheel Shake When the Car Exceeds 120 km/h?

The main reasons for steering wheel shaking when the speed exceeds 120 km/h are as follows: 1. Feedback force generated by the contact between the tires and the ground. 2. Inward or outward tilting of the car wheels. 3. Presence of foreign objects on the tire surface. 4. Loss of wheel balance weights. 5. Deformation of the wheel hub. 6. Excessive clearance in the steering linkage. 7. Insufficient tire pressure. Specific issues related to car tires can be divided into the following points: (1) Uneven tire pressure among the four wheels. (2) Uneven tread wear among the four wheels. (3) The wheel rims of the four wheels are not perfectly round. (4) No alignment correction was performed after replacing the tires on the four wheels. (5) A foreign object punctures one of the tires and forms a bulge on the tread, which is not noticeable at low speeds but becomes very obvious at high speeds due to the frequency vibration generated.

How Many Colors Does the Odyssey Hybrid Have?

The Odyssey Hybrid is available in 6 colors: Starry Moon White, Starry Sky Blue, Aurora Blue, Amber Gold, Pearl White, and Glacier Silver. Below is a detailed introduction to the Odyssey Hybrid: 1. In terms of appearance, the Odyssey Hybrid version is largely consistent with the fuel-powered model. A single chrome strip bearing the Honda logo connects with the headlights on both sides, enhancing the overall sense of unity. The headlights and fog lights feature LED light sources, while the front bumper adopts the same design as the Japanese version of the Honda Odyssey. 2. The interior of the Odyssey Hybrid version also sees little change compared to the traditional fuel-powered model. The dashboard layout is more business-oriented, with the central LCD display adding physical buttons and supporting third-party applications and voice recognition, giving it a strong technological feel. The hybrid Odyssey is not only equipped with Honda's hybrid system but also improved in many aspects, combining high operability, fuel efficiency, safety, comfort, and high cost performance to meet the needs of different groups. 3. In the MPV market, the Honda Odyssey integrates with the third-generation i-MMD system, which consists of a 2.0-liter Atkinson cycle DOHC i-VTEC engine, dual motors, and a lithium-ion battery pack, transmitted by a CVT gearbox, with a combined maximum output power of 158 kW.

Why does the brake feel soft and ineffective after replacing the brake pads?

After replacing the brake pads, the brake feeling soft and ineffective is mainly due to the following two reasons: 1. The surface of the brake pads is relatively flat. 2. The contact area with the brake disc is small, resulting in lower braking force. New brake pads require a break-in period, typically around 200 kilometers. Only after this break-in period can the optimal braking performance be achieved. Different issues have different solutions: 1. Severe wear of the brake pads. Some cars are equipped with a brake pad wear warning function. Once the brake pads wear close to the critical value, a warning light will appear on the dashboard. Even without this function, there are raised indicators on both sides of the brake pads, which represent the wear critical value. When the brake pads wear down to these raised indicators, they will contact the brake disc and produce abnormal noises. At this point, the brake pads should be inspected and replaced promptly. 2. Leakage between the master cylinder and the wheel cylinder. The master cylinder internally uses the brake pedal to pressurize the brake fluid, which then transmits the pressure to the wheel cylinders, pushing the brake pads to frictionally engage the brake disc and generate braking force. If there is internal leakage between the master cylinder and the wheel cylinders, the pressure will dissipate internally, causing the brake to feel soft. To resolve this, the internal air should be bled, and the brake lines should be inspected and replaced promptly.

How much engine oil should the Envision take?

Envision requires approximately 5 liters of engine oil. Below are detailed explanations about engine oil: 1. Use the engine oil recommended in the owner's manual. Understanding the different quantities and grades on the oil packaging helps maintain smooth vehicle operation. 2. Learn how to read oil viscosity. Viscosity indicates the thickness of the fluid or its resistance to flow. High viscosity fluids are less likely to flow smoothly because they are thicker (for example, yogurt is more viscous than milk). Engine oil viscosity is represented by two numbers combined, such as 10W-30 or 20W-50. The first number, W, refers to the oil's temperature performance in winter. This clearly indicates how the oil flows in cold weather when it's cold. The second number shows how well the oil maintains its thickness under heat. 3. Check the user manual for the necessary certifications required for the engine oil. This helps ensure the vehicle remains in good health during the warranty period. Each type of engine oil has several different certifications, from API to ILSAC, ensuring the oil used meets the standards set by the manufacturer. 4. Use synthetic oil for high-end vehicles or extreme conditions. Although more effective, synthetic oil is also more expensive than its conventional counterparts. 5. Do not mix different types of oil in older vehicles. If the car runs well on a single-weight oil (one viscosity grade), do not switch now. This could cause sludge and dirt buildup in the engine to break loose and cause problems.

What are the maintenance items for a car at 80,000 kilometers?

Maintenance items for a car at 80,000 kilometers include: 1. Inspect the engine, chassis, and transmission; 2. Replace the engine oil and three filters; 3. Clean the engine and throttle body; 4. Replace the spark plugs; 5. Check the wheels and brakes; 6. Replace the engine belt. Maintenance refers to the preventive work of regularly inspecting, cleaning, supplying, lubricating, adjusting, or replacing certain parts of a car, also known as car servicing. The benefits of maintenance include: 1. Ensuring the vehicle is in excellent performance condition; 2. Improving vehicle efficiency and reducing wear on parts and tires; 3. Enhancing driving safety; 4. Preventing potential hazards caused by vehicle issues; 5. Reducing noise and environmental pollution; 6. Keeping the vehicle's appearance clean and preventing damage.

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