Diagnostic Starting Point - Engine Mechanical
WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
Begin the system diagnosis by reviewing the:
- Disassembled Views
- Engine Component Description
- Lubrication Description - Main Pressure Below 55 psi with Cylinder Deactivation (Active Fuel Management) Off
- Lubrication Description - Main Pressure Above 55 psi with Cylinder Deactivation (Active Fuel Management) Off
- Lubrication Description - Main Pressure Below 55 psi with Cylinder Deactivation (Active Fuel Management) On
- Lubrication Description - Main Pressure Above 55 psi with Cylinder Deactivation (Active Fuel Management) On
- Cylinder Deactivation (Active Fuel Management) System Description
- Drive Belt System Description
Reviewing the description and operation information helps you determine the correct symptom diagnostic procedure when a condition exists. Reviewing the description and operation information also helps you determine if the condition described by the customer is normal operation. Refer to Symptoms - Engine Mechanical in order to identify the correct procedure for diagnosing the system and where the procedure is located.