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Will the Corolla's engine shake after prolonged use?

1 Answers
VanMatthew
07/29/25 10:48pm
Corolla's engine will shake after prolonged use. Engine knocking: When the heat value of the spark plug is too high, its heat collection and dissipation time becomes faster, and the temperature of the spark plug will be lower, which can easily lead to engine knocking symptoms, further affecting the car's acceleration capability. In this case, it is necessary to replace the spark plug with a new one. If the engine still knocks, it may be due to a mismatch in the spark plug model. Engine shaking: If the heat value of the spark plug does not match, it can cause the engine to misfire, leading to abnormal engine shaking or reduced power. There are many reasons for abnormal engine shaking, and apart from a mismatch in spark plug heat value, severe carbon buildup is also one of the causes. However, the key symptom of engine shaking caused by incorrect spark plug heat value is a regular shaking of the engine when the car is idling, which can be clearly felt when holding the steering wheel.
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How to Read Tire Size Specifications?

Tire size specifications are introduced as follows: 1. Taking 195/55R15 as an example: 195 indicates the section width, which is the area of the tire that can contact the ground, measured in millimeters. 2. 55 represents the aspect ratio, which is the ratio of the tire's section height to its section width. 3. R stands for the construction code, with R being the abbreviation for radial tire. 4. 15 denotes the inner diameter of the tire, which is also the diameter of the wheel rim, usually measured in inches. Here is some additional information about tires: Tires also have speed rating letter codes, indicating the maximum speed at which the tire can carry a specified load under defined conditions. Letters from A to Z represent certified speed ratings ranging from 4.8 km/h to 300 km/h.
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Will hitting the chassis with a stone cause any damage?

Hitting the chassis with a stone can cause damage. Minor scratches: It is necessary to determine the extent of the impact based on its severity. Minor scratches will not have any effect on the vehicle's chassis. Severe scratches: Severe scratches can lead to the rupture of the vehicle's oil pan, breakage of the brake fluid pipes, or deformation of the tie rod, which can pose a danger while driving. After such an impact, it is essential to inspect the condition of the chassis. Below is additional information related to the vehicle's chassis: Function of the chassis: The chassis supports and installs the vehicle's engine and its various components and assemblies, forming the overall shape of the vehicle. It also receives the engine's power to enable the vehicle's movement and ensure normal operation. Relationship: The driving form of the vehicle's chassis is related to the relative positions of the engine and the drive axle.
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What is the normal fuel pressure for a car?

Car fuel pressure normally ranges between 300-350kPa. Fuel system classification: There are two types of automotive fuel systems: full-return systems and semi-return systems. The difference is that full-return systems have a return fuel line on the fuel rail. Gasoline source: Gasoline is a volatile, flammable hydrocarbon mixture liquid distilled and cracked from petroleum, used as fuel. It appears as a transparent liquid, is flammable, with a distillation range of 30°C to 220°C, mainly composed of C5-C12 aliphatic hydrocarbons and cycloalkanes, along with a certain amount of aromatic hydrocarbons. Idle working pressure: The reading on the fuel pressure gauge when the engine is idling is the idle working pressure of the fuel supply system, generally 0.25MPa or as specified by the vehicle's technical requirements. When testing idle working pressure, the fuel pressure should rise to 0.3MPa when the vacuum tube on the fuel pressure regulator is removed; otherwise, the fuel pressure regulator should be replaced.
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Is a Water Tank Temperature of 90 Degrees Normal?

A water tank temperature hovering around 90°C is considered normal. The engine water temperature gauge typically uses a physical or virtual dial pointer for display, while a few vehicles may not have a dashboard and only show a warning indicator when the temperature is too high. The car's water tank contains antifreeze, which can handle temperatures up to 100°C without issues. However, temperatures reaching 120°C should be monitored. Reasons for Overheating in Car Water Tanks: Cooling Fan Not Functioning: A malfunctioning radiator fan can prevent timely heat dissipation from the antifreeze during high engine speeds, leading to an increase in antifreeze temperature. Insufficient Cooling Medium: High-end vehicles require antifreeze to be replenished year-round. Water or distilled water can be used as a temporary substitute. Leaks in the water tank cap can also contribute. Thermostat Damage: If removing the thermostat, ensure the small circulation loop is blocked to guarantee all coolant is cooled by the radiator. Handling Overheating in Car Water Tanks: If the fan is stuck or a fuse is blown, address the issue promptly after powering off. For wiring problems, consult a professional at a 4S shop for inspection. When adding coolant, always choose the same brand and model to ensure compatibility. When installing a new thermostat, ensure it has a water bypass hole. For models like the Santana, which lack this feature, drill a 6mm hole as necessary.
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Will water in gasoline affect the engine?

The engine will stall and stop running. When the fuel pump encounters water, the water will eventually be sprayed into the intake manifold through the fuel injector in a mist form and then enter the cylinder. The amount of water is very small, just a few grams. At this point, water is being sprayed in, so the engine will naturally stall and stop running. After the engine stops, the fuel pump will no longer continue to work. Minor water ingress: If the engine has a significant amount of water but does not affect normal driving, only making the sound louder, it may be due to a small amount of water in the oil or gasoline. In this case, the oil needs to be changed and the engine-related components cleaned. Major water ingress: If there is a large amount of water in the engine, but the car has not been started and the engine has not been damaged, the water needs to be drained completely, the interior cleaned, and then reassembled with new oil. However, the electrical system may not be safe.
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