What to Do When Your Car Gets Scratched in a Roadside Parking Spot?

Where is the engine sensor located?

Engine sensors are located at the crankshaft position and camshaft position. Here are the relevant details: 1. Crankshaft Position: The crankshaft position sensor is used to detect engine speed and provide crankshaft angle. The ECU uses the crankshaft position signal to determine fuel injection quantity and ignition timing advance, enabling the car to start normally. The sensor is installed near the flywheel. 2. Camshaft Position: The camshaft position sensor, also known as the phase sensor, detects the top dead center position of the engine cylinders. It works in conjunction with the crankshaft position sensor to start the engine and is installed near the camshaft. This helps adjust the fuel injection quantity to bring the actual air-fuel ratio closer to the theoretical air-fuel ratio.

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How Much Fuel Should a Sedan Refuel?

There are two scenarios for refueling a sedan: 1. Short-distance driving: When driving short distances, the fuel should be filled up to 80% of the tank capacity. 2. Long-distance driving: For long trips, the fuel should be filled up to 90% of the tank capacity to avoid increasing the vehicle's load and causing unnecessary fuel consumption. Additional information: Refueling should be done when the fuel level drops to 1/4 of the tank capacity. Waiting until the tank is nearly empty can lead to the accumulation of impurities at the bottom of the tank, which may be drawn into the fuel system and cause poor fuel delivery. Moreover, an almost empty tank can trap air, which, due to large day-night temperature variations, can form condensation and mix with the fuel, leading to poor combustion.

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How often should a car's timing belt be replaced?

Generally, it is common to replace the timing belt every 60,000 to 80,000 kilometers, but some may require replacement at longer intervals such as 80,000 to 100,000 kilometers. The exact replacement time is not entirely uniform, as each car brand and model has its own specific requirements. The precise timing should always be based on the "Owner's Manual" provided with the vehicle at the time of purchase. Below is more information about timing belts: 1. Function of the timing belt: The timing belt is a consumable automotive part made of rubber, which will degrade over time. It connects the camshaft and the crankshaft, controlling the opening and closing of the valves and coordinating the rotation of the crankshaft with the up-and-down movement of the pistons. 2. Effects of a broken timing belt: A broken timing belt will cause the valves to open and close at the wrong time, and the pistons to move out of sync. This misalignment can lead to the valves and pistons colliding, resulting in damage to both components. In such cases, the engine will cease to function and may require a major overhaul. 3. Impact on the engine: If the timing belt breaks, the engine will not operate properly, leading to symptoms such as unstable idling, poor acceleration, or failure to start. The engine may stall immediately. In multi-valve engines, a broken timing belt can cause the pistons to bend the valves, and in severe cases, the engine may be rendered completely inoperable.

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Does a Car Need to Be Recharged with Freon?

Cars do not need to be recharged with Freon every year. There are two situations where Freon recharge is necessary: 1. Temperature does not reach 16°C: If the air vent of the indoor air conditioner cannot reach below 16°C, Freon needs to be added. 2. It takes a long time to reach 16°C: If the air vent can reach below 16°C but takes a long time, such as more than 5 or 6 minutes, Freon also needs to be added. Additional information: 1. When Freon needs to be added: During normal operation of the air conditioner, if bubbles continue to appear in the sight glass, it indicates a lack of Freon, and it needs to be added. 2. When Freon needs to be discharged: During normal operation of the air conditioner, if there are no bubbles in the sight glass, and when the air conditioner is turned off, no temporary bubbles appear, it indicates an excess of Freon, and it needs to be discharged. 3. When Freon is at the normal level: During normal operation of the air conditioner, if there are no bubbles in the sight glass, and when the air conditioner is turned off, temporary bubbles appear, it indicates that the Freon level is normal.

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What Causes Engine Shaking When Parking?

Parking shaking may be caused by aging engine components, and car shaking is also related to aging engine mounts. Here is relevant information: 1. Excessive carbon deposits: If there is severe carbon buildup in the engine cylinders, it can lead to clogged spark plugs and valves, directly causing the car to shake during idling. If the car's acceleration performance has significantly declined and the shaking persists, consider cleaning the engine cylinders. 2. Fuel supply system malfunction: Unstable fuel pressure can easily cause inconsistent concentration of the air-fuel mixture, resulting not only in shaking but also unstable idling. First, consider replacing the fuel filter, as prolonged use may clog the filter element. Then check the fuel pressure bypassing the fuel filter; if abnormal, it could indicate a fuel pump issue. 3. Misfiring cylinders: This is one of the most common causes of engine shaking, if not the most common. The problem lies in the engine ignition coil or spark plugs. If the ignition coil malfunctions or the spark plugs fail to fire for some reason, the car will exhibit shaking.

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What Causes Water on the Car Floor?

Possible reasons include water leakage from the door seals, which can be resolved by replacing the seals. Another cause could be clogged drainage holes under the windshield wiper baffle, allowing water to enter. Additionally, a blocked air conditioning drain hole may lead to leakage. If the sealing gasket on the door panel has come loose or wasn't properly secured, rainwater may seep in along a line, causing water accumulation under the floor mat. Below are the reasons for water ingress on the car floor: 1. Rust perforation in the chassis, allowing wheel splash to enter. Inspect carefully and seal or install a liner. 2. Clogged rainwater holes in the windshield cowl. Open the hood to check and clean them. 3. Damaged or ineffective door seals causing wind-driven water ingress. Inspect and replace if necessary. 4. Blocked sunroof drainage tubes, allowing water to enter from below the center pillar. Check and clear the blockage. 5. Poor sealing or rusted/loosened chassis screws causing water ingress. Inspect carefully and seal or tighten them.

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What to Do When Your Car Gets Scratched in a Roadside Parking Spot?

Where is the engine sensor located?

How Much Fuel Should a Sedan Refuel?

How often should a car's timing belt be replaced?

Does a Car Need to Be Recharged with Freon?

What Causes Engine Shaking When Parking?

What Causes Water on the Car Floor?

What are the reasons why the Teana horn sometimes works and sometimes doesn't?

What are the symptoms of excessive engine oil?

Is it okay to keep the car in S mode on the highway?

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