What to Pay Attention to When Buying a Flood-Damaged Car?

What are the symptoms of a clogged fuel filter?

Symptoms of a clogged fuel filter include the following 3 points: 1. Easy stalling or failure to start. When the fuel filter is clogged or malfunctioning, the fuel supply will inevitably be affected, leading to insufficient fuel supply to the engine, resulting in stalling during idling or gear shifting. 2. Poor acceleration and jerking. A faulty fuel filter causing uneven fuel supply can lead to a decrease in engine power output, resulting in poor acceleration or jerking when climbing hills, severely affecting the driving experience. 3. Engine shaking at idle is also one of the signs of a faulty or clogged fuel filter. However, for many small-displacement models with fewer engine cylinders, it is relatively normal to experience loud engine noise or shaking at idle, which usually eases after driving for a few minutes.

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What Causes Engine Shaking and Stalling?

Possible causes of engine shaking and stalling include: 1. Spark plugs need replacement. As a crucial component of the ignition system, spark plugs typically last about 100,000 kilometers. Excessive engine vibration may indicate carbon buildup affecting spark plug discharge, resulting in ignition failure; 2. Overly low engine cooling system temperature. The optimal operating temperature range is 60°C to 70°C. Below this threshold, incomplete fuel combustion may occur, forming carbon deposits that could potentially clog exhaust passages and cause unstable operation or frequent stalling; 3. Poor fuel atomization preventing proper air-fuel mixture. This leads to incomplete combustion, potentially causing carbon buildup and abnormal combustion chamber conditions that may even trigger engine knocking and increased vibration; 4. Use of substandard fuel may clog the fuel pump or cause incomplete combustion in cylinders; 5. Various factors reducing valve sealing performance. Compromised valve sealing destabilizes combustion chamber pressure, causing abnormal combustion, increased vibration, and frequent stalling.

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Automatic Transmission Car Start-Stop Procedure?

Automatic Transmission Car Start-Stop Procedure is introduced as follows: Automatic transmission starting procedure: 1. Ignition, for models with one-button start, press the one-button start three times. The first press turns on the ACC light (circuit connection), the second press is for vehicle self-check, and the third press requires stepping on the brake to ignite; 2. Step on the brake; 3. Shift to D gear; 4. Release the handbrake; 5. Slowly release the brake, step on the accelerator, and the start is completed. Automatic transmission stopping procedure is as follows: 1. Step on the brake; 2. Shift to N gear (this step can be skipped); 3. Pull up the handbrake. For automatic transmission models, always pull the handbrake first before shifting to P gear to protect the transmission; 4. Release the foot brake and ensure the vehicle does not move; 5. Shift to P gear; 6. Turn off the ignition.

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What model battery does the Baojun 730 use?

The Baojun 730 uses a Camel brand 86550T-12V-55Ah-550CCA battery. The car battery is installed in a suitable position with special safety considerations. If battery replacement is necessary, the electromagnetic compatibility, size, maintenance, output power, and safety requirements of the new battery should be considered before purchase. Methods to check the battery condition are as follows: 1. Routine inspection: Check whether the battery is firmly installed, whether the battery cables and terminal connections are secure, and whether the contact is good. Observe whether the battery casing is cracked. 2. Status check: Modern cars generally use maintenance-free batteries. Most of these maintenance-free batteries have a density indicator on the cover, commonly known as the "magic eye," which changes color according to the changes in the electrolyte density, displaying the battery status through different colors. Usually, when the magic eye is green, it indicates that the battery has sufficient power and is in normal condition; when the magic eye is black, it indicates that the battery is low on power and needs to be charged or replaced promptly; when the magic eye shows light yellow or no color, it indicates that the battery's acid level is too low or there is an internal fault, requiring repair or replacement. 3. Liquid level check: Check whether the electrolyte level is at the specified position. On the side of the plastic-cased battery, there are two liquid level lines marked: MAX and MIN. The battery status display indicates that the electrolyte level should be maintained between these two lines. Under no circumstances should the electrolyte level exceed the MAX mark or fall below the MIN mark.

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What Causes Spark Plugs to Fail Frequently?

Common reasons for spark plug failure include the following: Improper spark plug gap adjustment. If the gap is too small, it not only limits the contact area between the spark and the air-fuel mixture but also suppresses flame kernel growth due to the quenching effect of the electrodes. Although a spark occurs, it is weak, making ignition of the mixture difficult. Conversely, if the gap is too large, the ignition voltage provided by the system may be insufficient to generate a spark between the electrodes. Cracked spark plug skirt. High-voltage current can arc through the crack, causing leakage and preventing a spark at the electrodes. Electrode carbon buildup. Excessive carbon deposits on the spark plug can cause the center electrode to leak current to the surroundings instead of jumping to the side electrode, resulting in a short circuit and no spark. This can further damage the insulator and render the spark plug unusable. Electrode damage. Prolonged electrical erosion from sparks or chemical corrosion from combustion gases can cause the electrodes to break or detach, preventing sparking. Low insulation resistance of the spark plug. This condition reduces the ignition voltage applied to the spark gap, weakening the spark or completely disabling ignition. Short circuit in high-voltage wiring. If the ignition coil-to-distributor high-voltage wire leaks, the entire engine may fail to start. If the distributor-to-spark plug wire leaks, one cylinder's spark plug may not fire. Eroded platinum contacts. This can prevent all spark plugs from firing, making the engine unable to start or run normally. Symptoms of spark plug failure include: Difficulty starting the car, whether cold or hot, often requiring multiple attempts. Engine shaking during operation. Reduced power output, noticeably weaker than usual. Increased fuel consumption. Engine stalling. Failed emissions tests. Faulty spark plugs should be replaced promptly. The replacement steps are as follows: Open the hood and remove the engine's plastic cover. Disconnect the high-voltage wires, marking each cylinder's position to avoid confusion. Use a spark plug socket to remove each spark plug, ensuring the area is free of debris like leaves or dust. Insert the new spark plug into the hole, hand-tighten it a few turns, then use the socket to secure it. Reinstall the high-voltage wires in the correct firing order and reattach the cover. Replacement interval: Under normal maintenance, spark plugs should be replaced every 40,000–60,000 km. However, this may vary by brand and engine type, so consult the owner's manual for specifics.

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Can I make a U-turn before entering the highway?

Before entering the highway, if there is a U-turn sign, you can make a U-turn directly; if there is no sign, you cannot make a U-turn. Below are the relevant details: 1. Before entering the highway entrance, if there is a U-turn sign, it is allowed to make a U-turn; if there is no sign, you cannot make a U-turn. Forcing a U-turn is considered driving against traffic and will result in a 3-point deduction and a fine of 200 yuan. 2. If you have entered the toll station, you cannot make a U-turn and must proceed to the next exit. Making a U-turn or reversing on the highway will result in an immediate 12-point deduction. 3. The highway entrance toll station is a common place for point deductions. When passing through an ETC lane, you must slow down; driving too fast may result in being caught on camera.

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What to Pay Attention to When Buying a Flood-Damaged Car?

What are the symptoms of a clogged fuel filter?

What Causes Engine Shaking and Stalling?

Automatic Transmission Car Start-Stop Procedure?

What model battery does the Baojun 730 use?

What Causes Spark Plugs to Fail Frequently?

Can I make a U-turn before entering the highway?

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