GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
2002
🢒
Envoy - 2WD
🢒
Engine
🢒 Engine Mechanical - 4.2L
Engine
All Description and Operation
Crankcase Ventilation System Description
Drive Belt System Description
All Special Tools and Equipment
Special Tools
Diagnostic Procedures
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
Base Engine Misfire without Internal Engine Noises
Camshaft Position Actuator Diagnosis
Diagnostic Starting Point - Engine Mechanical
Engine Compression Test
Engine Noise on Start-Up, but Only Lasting a Few Seconds
Engine Noise Under Load
Engine Will Not Crank - Crankshaft Will Not Rotate
Lower Engine Noise, Regardless of Engine Speed
Symptoms - Engine Mechanical
Upper Engine Noise, Regardless of Engine Speed
General Diagnostic Information
Crankcase Ventilation System Inspection/Description
Drive Belt Chirping Diagnosis
Drive Belt Excessive Wear Diagnosis
Drive Belt Falls Off Diagnosis
Drive Belt Rumbling Diagnosis
Drive Belt Squeal Diagnosis
Drive Belt Tensioner Diagnosis
Drive Belt Vibration Diagnosis
Drive Belt Whine Diagnosis
Oil Consumption Diagnosis
Oil Leak Diagnosis
Oil Pressure Diagnosis and Testing
Mechanical Specifications
Engine Mechanical Specifications
Fastener Tightening Specifications
Other Specifications
Adhesives, Fluids, Lubricants, and Sealers
Removal, Installation, and Replacement
Camshaft Cover Replacement
Camshaft Position Exhaust Actuator Replacement
Camshaft Replacement
Camshaft Timing Chain, Sprocket, and Tensioner Replacement
Crankshaft Balancer Replacement
Crankshaft Front Oil Seal Replacement
Crankshaft Rear Oil Seal and Housing Replacement
Crankshaft Rear Oil Seal Replacement
Cylinder Head Replacement
Drive Belt Idler Pulley Replacement
Drive Belt Replacement
Drive Belt Tensioner Replacement
Engine Flywheel Replacement
Engine Front Cover Replacement
Engine Mount and Bracket Replacement - Left Side
Engine Mount and Bracket Replacement - Right Side
Engine Mount Inspection
Engine Oil and Oil Filter Replacement
Engine Oil Level Sensor and/or Switch Replacement
Engine Oil Pressure Sensor and/or Switch Replacement
Engine Replacement
Intake Manifold Replacement
Oil Filter Adapter and Bypass Valve Assembly Replacement
Oil Level Indicator Tube Replacement
Oil Pan Replacement
Oil Pump Replacement
Positive Crankcase Ventilation Hose/Pipe/Tube Replacement
Valve Rocker Arm and Hydraulic Valve Lash Adjuster Replacement
Valve Stem Oil Seal and Valve Spring Replacement