What Are the Basic Knowledge Points for Car Maintenance?
1 Answers
Cars are prone to issues such as failure to start, steering wheel vibration at high speeds, and heavy steering. Below is relevant maintenance knowledge: 1. Failure to start: (1) First, check if components like the high-voltage wires have gotten wet due to rain. If so, dry the wet parts before attempting to start. (2) Next, inspect the spark plugs for damage. If damaged, simply replace them with new ones. (3) Check if the battery voltage is sufficient. Sometimes, leaving the lights on after parking can drain the battery. In such cases, put the car in second gear, press the clutch, and use another vehicle to tow (not recommended; it's better to have someone push). Once reaching a certain speed, release the clutch and turn the ignition switch (not recommended; the ignition should be turned on before pushing). If the issue is with the alternator, this method won't work. 2. Steering wheel vibration at high speeds: If the car feels unstable or the steering wheel shakes at high speeds, first check the tire balance if alignment and other components are fine. 3. Heavy steering: Causes include low tire pressure (especially in front tires), insufficient power steering fluid, or incorrect front wheel alignment. 4. Pulling to one side: To check, drive straight and release the steering wheel. If the car doesn't go straight, it's pulling. This could be due to uneven tire pressure or incorrect front wheel alignment. 5. Poor headlight sealing: If headlights aren't sealed properly, they can let in water during washing or rain, causing fogging due to temperature differences. Avoid high-temperature drying, as it can soften plastic parts or melt adhesive, worsening the issue. Normally, sunlight can evaporate moisture inside headlights. Frequent water ingress may indicate damage from collisions, requiring a service check.
