how to fix my Toyota Highlander shaking problem when I accelerate

Solution

1. Preparation

• Gather all necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to ensure safety while working on electrical components.

2. Tire Inspection and Balancing

• Tools Required: Tire pressure gauge, tire balancer.
• Inspect each tire for uneven wear and proper inflation; adjust as necessary.
• If tires are unbalanced, mount them on a tire balancer and adjust weights accordingly.

3. Engine and Transmission Mount Replacement

• Tools Required: Socket set, torque wrench.
• Remove the bolts securing the engine mounts using a socket set.
• Lift the engine slightly with a jack to relieve pressure on the mounts.
• Replace old mounts with new ones, ensuring they are properly aligned.
• Torque the mounting bolts to the manufacturer's specifications.

4. Drive Shaft and CV Joint Inspection

• Tools Required: Jack and jack stands, socket set.
• Lift the vehicle and support it securely on jack stands.
• Inspect the drive shafts for any visible damage or excessive play in the CV joints.
• Replace any damaged components as needed, following the manufacturer’s specifications for torque.

5. Spark Plug and Ignition System Inspection

• Tools Required: Socket set, gap tool.
• Remove spark plugs and inspect for wear or carbon buildup.
• Replace any faulty spark plugs and ensure they are gapped according to manufacturer specifications.
• Check ignition coils and replace any that are malfunctioning.

6. Fuel System Check

• Tools Required: Fuel pressure gauge.
• Connect the fuel pressure gauge to the fuel rail and start the engine.
• Monitor the pressure; if it is below specifications, inspect the fuel filter and pump for blockages or failures.