What's the squeaking of the engine compartment when the cold car starts in the morning?

The abnormal starting sound of the cooling car has the following reasons:

The belt of automobile accessory wheel is too loose, which leads to the increase of load and abnormal sound of the belt when the door is refueled.

Carbon deposition on the throttle valve of the automobile leads to the blockage of the fuel filler door, and the idle speed control valve and throttle valve are too dirty.

There is a mixture of carbon deposit and engine oil in the intake of automobile engine, which causes the valve to hum when it suddenly fills up.

Solution:

1. Check the generator belt, compressor belt, booster pump belt, etc. If it is loose, please replace it or tighten it.

2. Check the accelerator of the car. If it is dirty, clean it and match it. 3. Clean the oil mixture and carbon deposit in the air inlet, and use special air inlet cleaner.

3. Check whether the accelerator pedal spring is loose or tired, and if so, replace it.