2. It is necessary to pay attention to the behavior of the car when driving straight, on turns, during acceleration and during braking. Since most serious violations and malfunctions (which cannot be determined when the vehicle is stationary or when starting to move), manifest themselves only when moving. A malfunction in the transmission may result in jerks when the car is moving, while a malfunction in the settings or a malfunction in the chassis may result in knocking and poor handling.
Car jerks while driving
1. Malfunctions in the fuel system (see chapter "Power supply system").
2. Malfunction of the ignition system (see chapter "Engine electrical equipment").
3. Air leak in the engine intake system. At the same time, when jerks occur, there is a sharp drop in engine power and a lack of traction (see chapter "Intake and exhaust system").
4. Malfunction of the electronic transmission control system (cars with automatic transmission). You need to contact a service station to diagnose the system.
5. Malfunction of the electronic engine control system. You need to contact a service station to diagnose the system.
Car jerks when braking
1. In this case, the cause may be warping of the brake disc. Therefore, it is necessary to contact the service station as soon as possible for repair.
Note:
In most cases, the service station will offer two options for troubleshooting, namely:
- Turning and subsequent grinding of brake discs/brake drums to the repair size.
- Complete replacement of the brake disc.
The first solution to the problem is less expensive, but there is one significant drawback - the brake pads and the brake disc must be ground in, and this will take a certain period of time, during which slight jerks will be felt when braking.
The second option eliminates the disadvantage of the first, but it is more expensive.
2. Poor tightening of wheel mounting bolts/nuts.
3. Dirt or ice build-up on the vehicle's brakes. In case of freezing, it is necessary to move at low speed and press the brake pedal several times to warm up the brake mechanisms.
The article was obtained from this portal (MitsubishiMan)