What Causes the 1.6 Cruze to Shake During Cold Start?

[LeFelix]

1.6 Cruze cold start shaking reasons: 1. After prolonged use, the spark plug's ignition gap tends to increase, leading to reduced ignition energy, which affects the vehicle's performance and causes shaking; 2. Inaccurate air-fuel mixture ratio adjustment, present in both open-loop and closed-loop control. If the car's computer makes an incorrect judgment, errors occur in controlling the air-fuel mixture and ignition timing through the actuators, thereby reducing the vehicle's power output and causing shaking; 3. Ignition coil failure: The ignition coil is a transformer responsible for converting the vehicle's low-voltage current into high-voltage electricity, providing sufficient voltage to the spark plugs. Once the ignition coil fails, such as cracking and leaking electricity, it results in insufficient spark plug ignition capability. Consequently, the mixed gas in this cylinder does not combust properly, leading to engine misfire, starting difficulties, and acceleration shaking. The Cruze is a sedan model launched by Chevrolet, available in 1.6 and 1.8 displacement versions with a total of 6 models, paired with a 6-speed automatic transmission.