Diagnostic Starting Point - Engine Mechanical. Pontiac Grand Prix 2007

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2007 🢒 Grand Prix 🢒 Engine 🢒 Engine Mechanical - 5.3L 🢒 Diagnostic Starting Point - Engine Mechanical

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 will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the description and operation information will also help 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.