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What are the symptoms of a faulty diesel engine fuel injector?

1 Answers
VonBeckett
07/30/25 5:02am
Diesel engine fuel injector failure symptoms include: 1. The engine emits black smoke; 2. The engine produces abnormal noises. The fuel injector is one of the key components of an electronically controlled fuel injection engine, and its working condition directly affects engine performance. Causes of fuel injector clogging: 1. Carbon deposits from engine combustion accumulating on the injector or impurities in the fuel causing clogging; 2. After a certain mileage, deposits form in the fuel system; 3. The inherent gums and impurities in the fuel or dust and impurities introduced during storage and transportation can form sludge-like deposits in the fuel tank and fuel lines; 4. Excessive engine oil added, which enters the combustion chamber through piston rings, adheres to the injector, and forms carbon deposits after high-temperature combustion.
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How to Replace the Key Battery for Hyundai Cars?

To replace the key battery for a Hyundai car, follow these steps: 1. Prepare tools and battery: 1 flathead screwdriver, 1 car key that needs battery replacement, and 1 corresponding battery model. 2. Locate the round button on the side of the car key. Press this button with one hand while pulling out the mechanical key with the other hand. 3. Find the gap in the middle of the top end of the key and insert the flathead screwdriver: Hold the key with one hand and the screwdriver with the other; locate the gap in the middle of the top end of the key and insert the flathead screwdriver; pry the key up and down until a gap is created. If the key doesn't budge, gradually increase the force until it moves. 4. Install the new battery: Remove the key circuit board, gently push one side of the battery with your finger, and take out the old battery. Place the new battery with the positive side facing up into the battery slot, then gently push it until it is fully secured. 5. Reassemble the key: Cover the key circuit board back onto the key, align the two separated halves of the key properly, and press both sides of the key with your hands until the upper and lower parts are completely fitted together. Finally, insert the mechanical key back into the key slot.
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How to adjust the time on Peugeot 508?

Peugeot 508 time adjustment method: Press the SETUP button on the center console, then select display settings, and change the time. The Dongfeng Peugeot 508 is a mid-size sedan with a length, width, and height of 4826mm, 1855mm, and 1465mm respectively, a wheelbase of 2815mm, and front-wheel drive. In terms of appearance, the car's hood nose wings, combined with the gradient chrome trim and the surface feature lines of the hood, reveal the overall design concept. The concave and convex body lines complement the car's shape, creating a perfect blend of power and elegance. In terms of power, the car is equipped with two engines, one is a 1.6-liter turbocharged engine, and the other is a 1.8-liter turbocharged engine.
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What is the reason why the fuel gauge of BMW X3 does not reset after refueling?

The reason why the fuel gauge of BMW X3 does not reset after refueling: The fuel float inside the fuel tank may be affected by the pressure in the tank, or there might be an issue with the fuel level sensor, causing the reset to be relatively slow. It usually resets automatically within 3 to 5 hours after refueling. If it does not recover beyond this time, it may indicate a malfunction of the fuel level sensor inside the tank, requiring repair or replacement at an auto repair shop. The BMW X3 is an SUV model with dimensions of 4648mm in length, 1881mm in width, and 1661mm in height, and a wheelbase of 2810mm. In terms of power, this vehicle is equipped with three engines: a low-power version 2.0-liter turbocharged engine, a medium-power version 2.0-liter turbocharged engine, and a high-power version 2.0-liter turbocharged engine.
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What Causes the Handbrake Warning Light to Stay On?

If the handbrake warning light in your car remains illuminated, it may be due to forgetting to release the handbrake or not fully disengaging it, which triggers the warning light. After ruling out these possibilities, if the light persists, it is necessary to check the brake fluid, as leaks or insufficient levels can also cause the handbrake light to stay on. Should the handbrake light remain lit and be accompanied by vibrations or unusual noises when braking, it could indicate that the brake discs have worn thin or that foreign objects have entered the brake pads. This condition may also lead to reduced braking power, longer stopping distances, and a softer brake pedal feel. The braking system primarily consists of an energy supply device, control device, transmission device, and the brake itself. Its main functions are to decelerate or stop a moving vehicle, maintain a stable speed when descending slopes, and keep a stationary vehicle from moving.
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How to Determine if a Car's Control Arm is Broken?

Methods to determine if a car's control arm is broken: A broken control arm can cause the car's tires to wobble, leading to abnormal tire wear and increased noise. The control arm, also known as the swing arm, functions to balance and support the vehicle. When driving on uneven roads, the tires move up and down, which is facilitated by the movement of the control arm. The tires are mounted on the wheel hub, which is connected to the control arm via a ball joint. The control arm is connected to the subframe through a hinge sleeve at the front connection point of the subframe. The forces and impacts experienced by the wheels are transmitted to the vehicle body through this hinge sleeve. The hinge sleeve at the front connection point of the subframe is a potential area for cracking, meaning that in the event of an axle breakage, it is highly likely to occur at this hinge sleeve location.
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Which country is BYD Company from?

BYD Company is from China and is a leader in China's new energy vehicle industry, primarily producing commercial vehicles, household cars, and batteries. The BYD Tang is a mid-size SUV under the BYD brand, with dimensions of 4870mm in length, 1940mm in width, and 1720mm in height, and a wheelbase of 2820mm. In terms of exterior design, the vehicle features a completely new front-end design, including large chrome accents, a black honeycomb-patterned grille, a wide-mouth-style air intake on the front bumper, LED daytime running lights, and newly designed five-spoke alloy wheels. At the rear, the car sports distinctive taillights connected by a chrome trim strip.
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