Repair when you find these signs under the car
In car design, the chassis system is one of the important factors. If you notice the following signs, check and repair the car chassis immediately.
Unstable operation, strange noise
If while driving, carrying heavy goods or going through bumpy, rough roads,... and you hear a louder, clearer noise coming from under the car, the user should take the car in for inspection and maintenance immediately to avoid affecting other parts of the car's operating system.
Exhaust system makes unusual noises

Strange noises from the exhaust pipe and exhaust gas leaking under the hood are warning signs that the car's operating system is having problems. The car owner needs to open the hood to assess the damage so that it can be repaired promptly if necessary.
Mild cases are usually caused by loose gaskets or bolts, so just tighten them. However, if the exhaust pipe is broken, cracked, or when driving, you feel an unusual decrease in power, you should immediately go to a maintenance center for inspection.
Engine power is reduced

While driving, if the driver feels the engine is running at low speed, it may be because the tank is low on fuel, the filter is clogged, etc. and needs to readjust the engine speed at idle, add more fuel, replace or wash the filter.
Tires squeal loudly when stopping or parking
If when braking to stop or park the car, the wheel makes a loud screeching sound, it is very likely that the tire has deteriorated, warped,... and needs to be replaced with a new tire to ensure your safety during future use.

The car pulls to one side even on a flat road.
In cases where the car swerves to one side when braking, it is usually due to uneven braking force on the wheels. In such cases, the driver should take the car to a reputable garage for repair, because prolonged operation in that condition will cause the car to easily flip over in situations of sudden braking at high speed or cornering, causing unsafety for the vehicle user.