Any model of car can start to show jerking problems while driving, possibly due to certain causes that lead to the car jerks when accelerating, automatic or standard, we will know the causes and solutions. By repairing or replacing some of these defective components, the fault disappears.
5 main causes that make the car jerk when accelerating
An automatic or standard car may sometimes jerk when accelerating for the following reasons:
1. Faulty spark plug wires
The damaged spark plug wires They are one of the main causes that generate jerks in a vehicle.is because they hinder the sufficient spark, or failing that they do not allow the passage of spark. For a few seconds jerks occur in the vehicle and then it works normally as if nothing is happening. This fault warrants seeking help from an expert mechanic and cables should be replaced when faulty, this will improve the jerk fault.
2. Broken fuel pump
When the fuel pump is broken, most likely it causes jerks in the vehicle even circulating. It is because this damaged part loses pressure, meanwhile the car loses pressure for seconds and acts as if it is going to turn off, however, it picks up the pressure again, but will continue to jerk as the car accelerates. The correct diagnosis by a specialist will detect the damaged fuel pump and if necessary it must be replaced.
3. Coil spark
Another factor that intervenes in a car so that it presents jerky failures when accelerating is if he cuts his coil spark and it works intermittentlymeans that is defective or is beginning to cut the spark for a few seconds and resumes operation. The spark of the car must be verified well, when checking the spark emitted by the coil, as well as the spark plug cables. Whether observe that there is a good spark, then It should not be ruled out to check any cylinder and the connector, to make sure that it is not one of these parts. If defects are diagnosed in these components, it is best to proceed to replace them.
4. Crankshaft sensor
A crankshaft sensor faulty starts to failis because this faulty part cuts the spark in the coil and immediately the jerk symptom appears when accelerating the vehicle. Also appears the check engine light lit on the dash, indicating that there is a problem with the vehicle’s engine. To diagnose the failure, you must scan and know what error code it is giving, but, often this problem originates from the crankshaft sensor. The mechanical expert must check the spark plug cables, check the coil, check the pressure of the fuel pump, if it does not show faults, then the ignition spark is checked.
5. Bad spark plugs
Surely one bad spark plug causes jerks when accelerating the car. A damaged spark plug shorts or makes the spark jump. This piece with malfunctions makes the car still circulating begin to jerk. Should be check that the spark plugs are in perfect condition, as well as the spark wires, the coil, fuel pump pressure. Without forgetting something important, it is necessary to scan the vehicle to detect where the fault really comes from. Bad spark plugs should be replaced, this will alleviate the problem.
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