What Causes Severe Car Shaking in Winter?

[Kelsey]

There are several reasons for car shaking in winter: 1. Engine mechanical failure, uneven cylinder pressure, and variations in spark plug ignition gap and timing control after prolonged use. 2. Intake system failure, including intake pipe leaks, excessive carbon buildup on intake valves and pipes, and dirt accumulation on throttle bodies and intake pipe walls. 3. Engine management system failure, such as incorrect coolant or intake air temperature signals, or wiring issues. 4. Ignition system faults, where components like spark plugs, ignition coils, and fuel injectors wear out over time. 5. Fuel supply system failure, where excessive carbon deposits inside injectors cause poor sealing or clogging. Here are solutions for winter car shaking: 1. Use higher-grade motor oil with lower viscosity in winter, such as 5W or 0W full synthetic oil. 2. Carbon buildup is heavily influenced by driving environment, air quality, and fuel quality. It's recommended to clean the throttle body every 30,000 kilometers. 3. Visit a repair shop for diagnostic computer scanning to pinpoint and resolve faults. 4. Replace spark plugs every 30,000 kilometers and use diagnostic tools to check for misfires, addressing ignition coil issues promptly.

[StClara]

I've been driving for many years, and in winter, the car shakes severely. Common reasons include the engine oil being too thick, which leads to poor lubrication, and incomplete combustion of gasoline during cold starts. Additionally, if the spark plugs are worn out, their ignition efficiency is worse in low temperatures, making shaking more likely. Moreover, a damp or carbon-fouled air flow sensor can malfunction in cold winter. Insufficient lubrication of the wheel hub bearings and hardened rubber bushings in lower temperatures can transmit vibrations to the car body. I recommend promptly switching to low-viscosity winter-specific engine oil, warming up the engine for a few minutes before driving, and regularly checking the spark plugs and sensors to prevent the problem from worsening and affecting driving.

[OMolly]

As a car owner, I deeply understand the winter shaking. That time, while driving, the car suddenly shook violently, as if the entire cabin was rocking. Later, I found out it was due to a sharp drop in tire pressure in the low temperature, causing imbalance and excessive friction. The suspension system becomes stiff in extreme cold, with weakened spring and shock absorber cushioning, amplifying vibration feedback. Sometimes, snow or ice accumulates on the wheel hubs, causing axle imbalance. It's advisable to check tire pressure before each trip, maintaining the recommended value; clear snow from the wheel hubs; ensure suspension components are undamaged, and perform a dynamic balance test if necessary.

[DeMaria]

I've noticed that winter driving vibrations often stem from electrical system failures, particularly declining battery performance. Low temperatures reduce battery capacity, affecting starting voltage, while issues with ignition coils or related wiring can cause noticeable engine vibrations. Spark plug carbon buildup or incorrect gaps make them prone to malfunction in cold weather, and even fuel pump supply instability can occur. The solution is to warm up the car for three to five minutes to allow the system to heat up; check the battery condition; and replace spark plugs if necessary.

[JoshuaAnn]

Pay attention to driving safety, I emphasize not to ignore car shaking in winter. Possible reasons include worn engine mount cushions transmitting vibrations, or unbalanced drive shafts exacerbated by cold weather. Low temperatures can cause poor gasoline evaporation and incomplete combustion, leading to shaking. I recommend performing maintenance in advance, using engine oil suitable for winter temperatures; warming up the car until the coolant reaches normal temperature before driving; and regularly inspecting mounts and drivetrain components to prevent potential risks and ensure smooth driving.