What Causes the Haval H6 to Shake When Accelerating?
3 Answers
The Haval H6 shaking when accelerating can be attributed to the following 4 reasons: 1. Excessive wear of the inner CV joint in the half-shaft: Due to changes in the force application point, a certain angle is formed between the transmission and the half-shaft, resulting in a jerking sensation in the vehicle; 2. Degraded performance or use of inferior spark plugs: Both the ignition coil and spark plugs are wear-prone components. When the spark plugs' performance degrades or inferior spark plugs are used, it can lead to weak acceleration and shaking during acceleration; 3. Malfunction of sensors and circuits controlling idle speed: For example, when the idle switch fails to close, the ECU incorrectly determines that the engine is under partial load, leading to incorrect control of the air intake; 4. Excessive carbon buildup in the idle air passage and throttle valve: This causes changes in the intake cross-sectional area, leading to inaccurate control of the idle air passage. As a result, the amount of air entering the cylinder deviates from the normal value, causing the air-fuel mixture to be too rich or too lean, resulting in abnormal combustion and unstable engine idle speed.
I've been driving a Haval H6 for almost two years, and recently when refueling, the car keeps jerking, making it as uncomfortable as dancing disco. This is mostly due to an issue with the ignition system, such as aging spark plugs or faulty ignition coils, causing a cylinder to misfire. Additionally, the Haval H6's engine is quite sensitive; dirty fuel lines or a clogged air filter can also cause jerking. From my personal experience, sometimes excessive carbon buildup affects air intake and combustion. Don't underestimate this problem—ignoring it long-term can increase fuel consumption or even cause the engine to stall. Once, I almost had an accident on the highway because of it. Later, I went to the 4S shop to replace the spark plugs and clean the throttle body, which solved the issue. I recommend getting it checked as soon as possible—don't wait until it severely affects driving like I did. Safety comes first.
As a car repair enthusiast, I find that fuel injection shaking in the Haval H6 is quite common, and I've experienced it with my own car. The focus is usually on the fuel injectors or fuel pump - uneven fuel injection can cause severe engine shaking. It might seem fine at idle, but the weakness becomes apparent when accelerating. Another common culprit is faulty sensors like the oxygen sensor, which can misreport the air-fuel ratio and lead to engine instability. I once helped a friend diagnose this issue and found that a simple tool test revealed a bad spark plug causing misfires. Shaking isn't just annoying; it also accelerates component wear, such as disrupting suspension balance. If you're doing it yourself, start by replacing the air filter and checking the fuel line screen to avoid big repair bills. Remember, regular maintenance can prevent these issues - otherwise, the repair costs will hurt your wallet.
