why does my Volvo XC90 make a squeaking noise when going over bumps?

Solution

1. Preparation

• Gather tools: socket set, torque wrench, pry bar, lubricant, and jack stands.
• Ensure the vehicle is parked on a level surface and the engine is off.

2. Lift the Vehicle

• Use a jack to lift the car and secure it on jack stands.
• Remove the front or rear wheels, depending on which suspension is suspected.

3. Inspect Suspension Components

• Sub-step 1: Examine the struts and shocks for signs of leakage or damage.
• Sub-step 2: Check the sway bar links for play or wear.
• Sub-step 3: Inspect control arm bushings for cracking or deterioration.

4. Replace Worn Components

• Sub-step 1: If any components are found to be worn, proceed to replace them as follows:
  • Remove the faulty strut or shock by unbolting it from the top and bottom mounts.
  • Install the new strut or shock, ensuring to torque bolts to the manufacturer’s specifications (consult service manual for exact torque values).
• Sub-step 2: Replace any worn sway bar links or bushings by unbolting them and installing new parts.

5. Reassemble and Lower the Vehicle

• Reinstall the wheels and lower the vehicle off the jack stands.
• Torque the wheel lug nuts to the manufacturer’s specification.