- Test drove to verify customer's concern. Brought back to shop and checked for faults, none found. Test ran while monitoring engine management system values. Checked timing and VANOS operation, found all systems working normally. Removed and inspected spark plug and found plugs are due for replacement. Valve cover and VANOS control actuator gaskets are leaking. Recommend replacing spark plugs and leaking gaskets before further troubleshooting,
- Removed covers to gain access. Removed wiring bundles. removed VANOS actuator. Removed valve cover. Cleaned mating surfaces on engine and cover. Reinstalled cover with new gasket. Reinstalled actuator with new gasket. Removed and replaced spark plugs. Test drove, Tests good!
Natalie S. gave our service a 5 star review on 4/5/2018