Specifications Index
ENVOY & TRAILBLAZER SPECIFICATIONS INDEX
| System | Specification/Procedure | ||
|---|---|---|---|
| Air Conditioning | |||
| Service | REFRIGERANT SYSTEM CAPACITIES (FIRST DESIGN COMPRESSOR) or REFRIGERANT SYSTEM CAPACITIES (SECOND DESIGN COMPRESSOR) | ||
| Torque | |||
| Automatic | FASTENER TIGHTENING SPECIFICATIONS | ||
| Manual | FASTENER TIGHTENING SPECIFICATIONS | ||
| Axle Nut/Hub Nut | |||
| Front | 103 lb ft (140 N.m) | ||
| Battery | BATTERY USAGE | ||
| Brakes | |||
| Bleeding Sequence | RR, LR, RF, LF | ||
| Disc Brakes | |||
| Service Specifications | DISC BRAKE COMPONENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Drum Brakes | NA | ||
| Charging | |||
| Generator | GENERATOR USAGE | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Drive Belts | |||
| Adjustment | NA | ||
| Belt Routing | |||
| 4.2L | See figure under DRIVE BELT REPLACEMENT | ||
| 5.3L & 6.0L | See figure under DRIVE BELT REPLACEMENT - ACCESSORY | ||
| Engine Cooling | |||
| General Service Specifications | COOLING SYSTEM DESCRIPTION AND OPERATION | ||
| Radiator Cap Pressure | Radiator cap pressure is stamped on cap. | ||
| Thermostat R & I | |||
| 4.2L | ENGINE COOLANT THERMOSTAT REPLACEMENT (4.2L ENGINE) | ||
| 5.3L & 6.0L | ENGINE COOLANT THERMOSTAT REPLACEMENT (5.3L AND 6.0L ENGINES) | ||
| Water Pump R & I | WATER PUMP REPLACEMENT | ||
| Engine Mechanical | |||
| 4.2L | |||
| Compression | ENGINE COMPRESSION TEST | ||
| Oil Pressure | 12 psi (85 kPa) minimum at 1,200 RPM | ||
| Overhaul | ENGINE MECHANICAL SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| 5.3L | |||
| Compression | ENGINE COMPRESSION TEST | ||
| Oil pressure | 6 psig (41 kPa) at 1,000 RPM 18 psig (124 kPa) at 2,000 RPM 24 psig (165 kPa) at 4,000 RPM |
||
| Overhaul | ENGINE MECHANICAL SPECIFICATIONS (5.3L) | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS (5.3L) | ||
| 6.0L | |||
| Compression | ENGINE COMPRESSION TEST | ||
| Oil pressure | 6 psig (41 kPa) at 1,000 RPM 18 psig (124 kPa) at 2,000 RPM 24 psig (165 kPa) at 4,000 RPM |
||
| Overhaul | ENGINE MECHANICAL SPECIFICATIONS (6.0L) | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS (6.0L) | ||
| Fluid Specifications | See FLUIDS under MAINTENANCE tab. From within Manager or Service Writer, click the "30/60/90 Interval" or "Maint." button. | ||
| Flywheel/Flex Plate/Drive PlateTorque | |||
| 4.2L | |||
| First Pass | 18 lb ft (25 N.m) | ||
| Final Pass | 50 degrees | ||
| 5.3L & 6.0L | |||
| First Pass | 15 lb ft (20 N.m) | ||
| Second Pass | 37 lb ft (50 N.m) | ||
| Final Pass | 74 lb ft (100 N.m) | ||
| Fuel System | |||
| 4.2L | |||
| Pressure Specification | 50-60 psi (345-414 kPa) | ||
| Fuel Pressure Test Procedure | FUEL SYSTEM DIAGNOSIS | ||
| Fuel Filter Location | Fuel filter is contained in fuel sender assembly inside fuel tank. | ||
| Fuel Filter R & I | FUEL SENDER ASSEMBLY REPLACEMENT | ||
| 5.3L & 6.0L | |||
| Pressure Specification | 50-60 psi (345-414 kPa) | ||
| Fuel Pressure Test Procedure | FUEL SYSTEM DIAGNOSIS | ||
| Fuel Filter Location | Fuel filter is contained in fuel sender assembly inside fuel tank. | ||
| Fuel Filter R & I | FUEL SENDER ASSEMBLY REPLACEMENT | ||
| Ignition | |||
| Firing Order & Cylinder Identification | |||
| 4.2L | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| 5.3L & 6.0L | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| Ignition Wires (Resistance) | |||
| 4.2L | NA | ||
| 5.3L & 6.0L | 397-1,337 ohms | ||
| Ignition Wires (Routing) | NA | ||
| Spark Plug | |||
| 4.2L | |||
| Type | NA | ||
| Gap | 0.040 in (1.016 mm) | ||
| Torque | 13 lb ft (18 N.m) | ||
| 5.3L & 6.0L | |||
| Type | GM P/N 12571164 or AC P/N 41-985 | ||
| Gap | Iridium .040 in. (1.04 mm) Platinum .060 in. (1.52 mm) |
||
| Torque | 11 lb ft (15 N.m) | ||
| Starting | |||
| Starter | STARTING SYSTEM DESCRIPTION AND OPERATION | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel Alignment | |||
| Adjustment Specifications | WHEEL ALIGNMENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel & Tire | |||
| Wheel Lug Nut Torque | 103 lb ft (140 N.m) | ||