If your vehicle is showing car hydroplanes easily in the rain, here are the most likely causes and the parts you'll need to fix each one.
The most common cause of hydroplaning is tires with worn-out tread. The grooves in the tire are designed to channel water away, and without sufficient depth, the tire rides on top of the water.
Significantly under-inflated or over-inflated tires alter the tire's contact patch with the road. This distortion makes it much harder for the tread to effectively disperse water.
Worn suspension components fail to keep the tires firmly pressed against the road surface. When hitting standing water, the weak suspension allows the tire to easily lift and hydroplane.
Severe misalignment prevents the tire from sitting flat on the road, reducing the effective tread area available to channel water. This is often accompanied by uneven tire wear.