What Causes the Vibration at 40 mph in CR-V?
2 Answers
CR-V vibrating at 40 mph is caused by issues with the throttle body, fuel injectors, and fuel quality. Below are the specific reasons and solutions: Dirty throttle body: A dirty throttle body can cause driving vibrations. It is recommended to clean the throttle body every 20,000 to 30,000 kilometers. Carbon buildup in fuel injectors: Carbon buildup in fuel injectors can lead to driving vibrations. It is advised to clean the intake and fuel system every 30,000 to 40,000 kilometers. Substandard fuel: After refueling, add some high-quality fuel additives or choose gas stations with better fuel quality to improve fuel quality. The engine must be strictly maintained according to the manufacturer's requirements, with regular replacement of engine oil and oil filter, air filter, and fuel filter.
When I encountered this issue, it was because my CR-V would noticeably shake at around 40 kilometers per hour, making the car body feel unstable. At first, I thought it was due to uneven roads, but the same thing happened on smooth roads. Later, when chatting with a friend at the auto repair shop, he said the most common causes are wheel imbalance or tire wear—improper tire pressure or slight wheel hub deformation can create resonance at specific speeds. I checked the tire pressure myself and found the front tires were slightly low. After inflating them, the situation improved a bit but wasn’t completely resolved. In the end, I went for a wheel balancing service and replaced the worn tires, which finally stopped the shaking. Ignoring these small issues can easily lead to accelerated suspension wear and affect safe driving. It’s recommended to first check tire pressure and tire condition.
