Can Transmission Cause Car to Shake When I Brake Hard?

If your car shakes when you brake hard, it could be a sign of a problem with your transmission. Here are a few things that could cause this problem:

1. Worn or damaged transmission mounts

The transmission mounts are responsible for holding the transmission in place and preventing it from moving around. If the mounts are worn or damaged, they can allow the transmission to move too much, which can cause the driveshaft to vibrate and shake the car.

2. Bad transmission fluid

Transmission fluid is responsible for lubricating the gears and other moving parts in the transmission. If the fluid is low or dirty, it can cause the gears to grind and the transmission to shake.

3. Worn or damaged gears

If the gears in the transmission are worn or damaged, they can cause the transmission to slip and shake. This can be especially noticeable when you are braking hard or accelerating.

4. Bad torque converter

The torque converter is responsible for transferring power from the engine to the transmission. If the torque converter is bad, it can cause the transmission to shake or shudder.

5. Other problems

In some cases, a shaking car when braking hard can be caused by other problems, such as:

Worn or damaged brake pads or rotors
Bad wheel bearings
Loose or damaged suspension components

Diagnosis

If your car shakes when you brake hard, it is important to have it diagnosed by a qualified mechanic. The mechanic will be able to determine the cause of the problem and recommend the necessary repairs.

Repair

The repair for a shaking car when braking hard will depend on the cause of the problem. In some cases, the repair may be as simple as replacing the transmission mounts or flushing the transmission fluid. In other cases, the repair may be more extensive, such as replacing the transmission or torque converter.