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What Causes the Squeaking Sound When a Car Starts?

1 Answers

DiJustin

07/29/25 3:50pm

The reasons for the squeaking sound when a car starts are: 1. Insufficient body rigidity, causing deformation during driving, resulting in friction or shaking between the doors and the frame; 2. Belt slippage damaging the bearings of the generator, water pump, or power steering pump; 3. Worn transmission bearings or gears; 4. Deformed, bulged, severely worn, or underinflated tire treads. The correct starting procedure for a car is: 1. Insert the key and turn it to the second ignition position (power mode), waiting for the system self-check to complete; 2. Shift the gear lever from P to N; 3. Release the brake and start the engine; 4. Press the brake pedal with your foot, shift the gear lever from N to D, then release the brake and press the accelerator to start.

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What are the causes of chassis noise during low-speed driving?

Chassis noise causes: It could be due to misalignment of the engine mounting pads, causing certain components to resonate or vibrate during operation, leading to friction between adjacent parts. Of course, the possibility of noise caused by damaged parts cannot be ruled out. Below is relevant information: 1. Specific causes: Damage, deformation, or detachment of the support plate, damping spring plate, or guide plate of the disc brake's brake shoe can increase the gaps around the brake shoe and caliper support frame, causing them to collide and produce noise. Deformed parts can be repaired at a repair shop, and detached parts should be replaced. 2. Front suspension ball joint noise: The gap between the ball joint and its seat becomes larger, causing severe looseness. Since the ball joint seat is a sealed structure and cannot be disassembled, encountering this situation requires replacement at a repair shop.

Should a stitched leather steering wheel be smooth or fully perforated?

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Does Electronic Parking Brake Failure Affect Driving?

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Is the failure rate of the Teana transmission very high?

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Where is the parking point for reverse parking?

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