Section 519 (Engine Mechanical - 5.3L, 6.0L, 6.2L - Diagnostic Information And Procedures)
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2012 GMC Yukon XL, 2012 GMC Yukon, 2012 Chevrolet Tahoe, 2012 Chevrolet Suburban, and 2012 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Diagnostic Information and Procedures
- Symptoms - Engine Mechanical
- Base Engine Misfire without Internal Engine Noises
- Base Engine Misfire with Abnormal Internal Lower Engine Noises
- Base Engine Misfire with Abnormal Valve Train Noise
- Base Engine Misfire with Coolant Consumption
- Base Engine Misfire with Excessive Oil Consumption
- Engine Noise on Start-Up, but Only Lasting a Few Seconds
- Upper Engine Noise, Regardless of Engine Speed
- Lower Engine Noise, Regardless of Engine Speed
- Engine Noise Under Load
- Engine Will Not Crank - Crankshaft Will Not Rotate
- Coolant in Combustion Chamber
- Coolant in Engine Oil
- Cylinder Deactivation (Active Fuel Management) System Diagnosis
- Engine Compression Test
- Cylinder Deactivation (Active Fuel Management) System Compression Test
- Cylinder Leakage Test
- Oil Consumption Diagnosis
- Oil Pressure Diagnosis and Testing
- Cylinder Deactivation (Active Fuel Management) Oil Pressure Relief Valve Diagnosis and Testing
- Cylinder Deactivation (Active Fuel Management) Valve Lifter Oil Manifold Diagnosis and Testing
- Camshaft Position Actuator and Solenoid Valve Diagnosis and Testing
- Oil Leak Diagnosis
- Crankcase Ventilation System Inspection/Diagnosis
- Drive Belt Chirping, Squeal, and Whine Diagnosis
- Drive Belt Rumbling and Vibration Diagnosis
- Drive Belt Falls Off and Excessive Wear Diagnosis
- Drive Belt Tensioner Diagnosis