What Causes the Squeaking Sound When the Car is Cold That Disappears After Warming Up?

[BlakelyDella]

The reasons for the squeaking sound when the car is cold that disappears after warming up are: 1. The generator belt has aged after prolonged use, causing it to slip during cold starts; 2. Worn bearings in the water pump or generator. The correct method for warming up the car is: 1. Start the vehicle and keep the air conditioning turned off; 2. Let the engine idle for 1 minute to warm up; 3. Drive slowly after the engine runs smoothly; 4. Once the engine temperature gauge rises by 1 to 2 bars, you can drive normally and use the air conditioning. The effects of not warming up the car include: 1. Increased wear on the engine, transmission, and other engine components, leading to a shortened lifespan; 2. Higher fuel consumption, making the engine more prone to carbon buildup.