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When i brake in my truck it starts to shake and rumble which assume is the rotrs are warpted but when begin accelerate also only for about 5 10 seconds whats wrong?

Braking:

1. Warped Rotors:

- Confirm if the rotors are indeed warped by inspecting them for any uneven surface or thickness variation.

- Warped rotors can cause vibrations during braking due to uneven contact between the brake pads and rotors.

2. Brake Caliper Issues:

- Check if the brake calipers are functioning correctly.

- Sticking or malfunctioning calipers can cause uneven braking and vibrations.

3. Suspension Components:

- Inspect the suspension components such as control arms, ball joints, and tie rods for any wear or damage.

- Worn or damaged suspension components can contribute to vibrations under braking.

Acceleration:

1. Driveline Components:

- Inspect the driveshaft, universal joints, and axle for any issues such as imbalance or worn components.

- Problems with these components can cause vibrations during acceleration.

2. Transmission Issues:

- Check if there are any issues with the transmission, such as a faulty torque converter or worn gears.

- Transmission problems can lead to vibrations during acceleration.

3. Engine Mounts:

- Inspect the engine mounts for any signs of wear or damage.

- Worn or damaged engine mounts can allow excessive engine movement, resulting in vibrations.

Additional Considerations:

- Tire Imbalance: Check the tires for proper inflation and balance. Unbalanced tires can cause vibrations at certain speeds.

- Wheel Alignment: Ensure the wheels are properly aligned. Misalignment can lead to uneven tire wear and vibrations.

It's important to have the vehicle inspected by a qualified mechanic to diagnose the exact cause of the vibrations and recommend any necessary repairs.