why does my Acura MDX YF3 (2022-Present) engine make a knocking noise when idling

Solution

1. Preparation

• Tools Required: OBD-II scanner, mechanics stethoscope, socket set, torque wrench, fluid catch pan.
• Safety Warnings: Disconnect the battery before working on electrical systems. Allow the engine to cool before performing any inspections.

2. Change Engine Oil

• Sub-steps:
  1. Raise the vehicle using a jack and secure it with jack stands.
  2. Place a fluid catch pan under the oil pan and remove the oil drain plug using a socket.
  3. Allow the old oil to fully drain, then replace the drain plug and torque it to the manufacturer’s specifications (usually around 20-25 lb-ft).
  4. Remove the old oil filter using an oil filter wrench and install a new filter, ensuring to lubricate the rubber gasket with new oil.
  5. Fill the engine with the correct type and amount of new oil as specified in the owner’s manual (typically 0W-20 synthetic oil).

3. Tighten or Replace Engine Mounts

• Sub-steps:
  1. Identify the engine mounts using the service manual for your vehicle.
  2. Inspect all mounts for signs of wear, cracking, or damage.
  3. If mounts are loose, tighten the bolts to the specified torque (usually around 40-50 lb-ft).
  4. If any mounts are damaged, remove the old mounts and install new ones, torquing according to manufacturer specifications.

4. Inspect and Repair Intake/Exhaust Systems

• Sub-steps:
  1. Visually inspect the intake manifold and hoses for cracks or loose connections; repair or replace as necessary.
  2. Check the exhaust system for loose clamps or damaged components; tighten or replace as needed to eliminate rattles and noise.