why does my Porsche 911 992 (2019-Present) engine shake when idling

Solution

1. Preparation

• Gather tools and parts before starting the repair.
• Disconnect the battery to ensure safety while working on electrical components.

2. Inspect and Replace Engine Mounts

• Tools Required: Socket set, torque wrench, jack, jack stands.
• Lift the vehicle using a jack and secure it with jack stands.
• Locate the engine mounts (usually near the front and rear of the engine).
• Inspect for cracks or deterioration. If damaged, proceed to replace:
  • Remove the bolts securing the engine mount to the engine and chassis.
  • Install the new engine mount, ensuring it is aligned correctly.
  • Torque the bolts to the manufacturer’s specifications (typically around 50-60 Nm, but refer to the service manual).

3. Clean or Replace Spark Plugs and Ignition Coils

• Tools Required: Socket set, spark plug socket, torque wrench.
• Remove the engine cover if necessary to access spark plugs.
• Disconnect the ignition coil connectors, then remove the coils.
• Remove the spark plugs using a spark plug socket. Inspect for wear; replace if necessary.
• Install new spark plugs, torquing them to the manufacturer’s specifications (usually around 25 Nm).
• Reinstall ignition coils and connectors.

4. Check and Clean Idle Air Control Valve (IAC)

• Tools Required: Torx or Phillips screwdriver, cleaning solvent.
• Locate the IAC valve, typically on or near the throttle body.
• Disconnect the electrical connector and remove the mounting screws.
• Clean the IAC valve with an appropriate cleaner. If faulty, replace it with a new unit.
• Reinstall the IAC valve and reconnect the electrical connector.