What Causes the Jerking During Haval Vehicle Startup?
2 Answers
Haval startup jerking can be caused by improper operation; overdue spark plug replacement; or transmission clutch slippage. The reasons for startup jerking are as follows: Improper operation: The jerking sensation during startup may simply be due to improper operation. Many drivers experience two distinct jerks when releasing the clutch after engaging gear during startup. The most direct causes are either releasing the clutch too quickly or failing to match it with throttle input. Overdue spark plug replacement: Jerking could also result from inefficient spark plug ignition. Spark plugs typically require replacement every 20,000 to 40,000 kilometers. Transmission clutch slippage: Transmission clutch slippage may also cause startup hesitation. Check whether the transmission emits a burnt smell or appears excessively dirty, and replace transmission fluid if necessary.
When experiencing jerky starts in my Haval, the most common cause I've noticed is improper calibration of the automatic transmission's clutch system, especially with dual-clutch types where the initial engagement isn't smooth. Cold starts can exacerbate this issue as low oil temperature slows friction plate response, and fluctuating engine power output can also trigger this problem. I've found driving habits play a role too - either stomping on the accelerator or being too gentle during starts can confuse the transmission logic. Checking fluids and regular transmission maintenance helps reduce jerkiness. Hardware issues like worn clutch plates or aging control units are potential root causes, so I recommend professional inspection.
