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Home/Cars/Toyota/Highlander/Third Generation (2014-2019)/why is my Toyota Highlander shaking when I accelerate

why is my Toyota Highlander shaking when I accelerate

Toyota Highlander Third Generation (2014-2019)

Severity: mediumDifficulty: medium2-4 hours
3 min read
457 words

Problem Statement

Learn how to diagnose and fix shaking during acceleration in Toyota Highlander. Step-by-step guide with diagnostic procedures and repair instructions.

Component
Suspension
Repair Time
2-4 hours

Safety Warnings

  • ⚠Always use jack stands when lifting a vehicle.
  • ⚠Disconnect the battery before working on electrical systems.

Symptoms

  • •Shaking or vibrations felt in the steering wheel or throughout the vehicle during acceleration
  • •Increased noise coming from the engine or drivetrain
  • •Possible loss of power or hesitation while accelerating
  • •Vibration frequency may change with speed
  • •Uneven tire wear or pulling to one side while driving

Diagnostic Steps

  1. 1Inspect tires for uneven wear and check tire pressure.
  2. 2Examine wheel balance and alignment using a wheel alignment machine.
  3. 3Check the condition of the driveline components, including the driveshaft and CV joints.
  4. 4Scan for any stored error codes using an OBD-II scanner.
  5. 5Inspect the engine and transmission mounts for signs of wear or damage.
  6. 6Test the suspension components for play or damage.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a flat surface and the parking brake is engaged.
  • Disconnect the battery if necessary for safety.

2. Inspect and Adjust Tires

  • Check tire pressure and inflate to the manufacturer's specifications.
  • Inspect tires for uneven wear patterns; replace if necessary.
  • Perform a wheel alignment using an alignment machine to ensure proper alignment.

3. Check Driveline Components

  • Lift the vehicle securely on jack stands.
  • Inspect the driveshaft and CV joints for cracks or excessive play.
  • Replace any damaged components as needed.

4. Examine Engine and Transmission Mounts

  • Visually inspect the engine and transmission mounts for cracks or separation.
  • Replace any mounts that show signs of wear or damage.

5. Final Checks

  • Reassemble any components removed during inspection.
  • Reconnect the battery if it was disconnected.
  • Lower the vehicle to the ground.

Verification

After completing the repair, verify that the issue has been resolved:

  • Test the affected component to ensure it functions correctly
  • Check for any error codes or warning lights
  • Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • OBD-II scanner
  • Jack and jack stands
  • Tire pressure gauge
  • Wheel alignment machine
  • Torque wrench

Parts Required

  • Tires (if uneven wear is found)
  • Engine or transmission mounts (if damaged)
  • Driveline components (if any are worn)

Additional Information

Component

Suspension

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

5 items

Parts

3 items

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