What Causes the Honda URV to Shake When Idling in D Gear?
2 Answers
Honda URV shaking when idling in D gear can be caused by aging engine mounts, aging transmission mounts, or issues with transmission fluid. Aging Engine Mounts: Engine mounts act as buffers between the engine and the vehicle body. If the engine mounts age, the engine's vibrations can transfer into the cabin, making the shaking particularly noticeable when idling in D gear. Aging Transmission Mounts: The transmission also has mounts at the bottom to absorb vibrations. When the vehicle is in D gear, the transmission is connected to the engine. If the transmission mounts age, the shaking can become more pronounced. Issues with Transmission Fluid: Over time, transmission fluid can become thick and lose its lubricating properties, increasing internal resistance within the transmission and causing shaking.
My Honda URV also experienced shaking when idling in D gear before, and this issue can be traced back to the engine mount. The technical name for it is the engine mount bushing, which is a rubber-made damping block. After three to five years of use, the rubber hardens due to aging, and the engine vibrations are directly transmitted into the car. This is especially noticeable when in D gear because the transmission pulls on the engine, making the vibrations more pronounced. Another common issue is carbon buildup. If the fuel injectors are clogged with carbon deposits, it can lead to unstable fuel supply and incomplete combustion, causing shaking. Worn spark plugs with increased gaps are also a contributing factor—it's recommended to check these three areas first. A minor detail to consider is the torque converter in the transmission. If its internal oil pressure is unstable, you might feel like you're sitting on a massage chair while waiting at a red light. Lastly, don’t overlook tire pressure—unbalanced tires can amplify the body vibrations.
