Specifications Index
ASCENDER, ENVOY, RAINIER, TRAILBLAZER SPECIFICATIONS INDEX
| System | Specification/Procedure | ||
|---|---|---|---|
| Air Conditioning | |||
| Service | REFRIGERANT SYSTEM CAPACITIES | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel Drive Shaft Nut | 103 Ft. Lbs. (140 N.m) | ||
| Battery | BATTERY USAGE | ||
| Brakes | |||
| Bleeding Sequence | RR, LR, RF, LF | ||
| Disc Brakes | DISC BRAKE COMPONENT SPECIFICATIONS | ||
| Drum Brakes | NA | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Charging | |||
| Generator | GENERATOR USAGE | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Drive Belts | |||
| Adjustment | NA | ||
| Belt Routing | |||
| 4.2L | See figure under DRIVE BELT REPLACEMENT | ||
| 5.3L | See figure under DRIVE BELT REPLACEMENT - ACCESSORY | ||
| Engine Cooling | |||
| General Service Specifications | SPECIFICATIONS | ||
| Radiator Cap Pressure | Radiator cap pressure stamped on cap. | ||
| Thermostat R & I | |||
| 4.2L | THERMOSTAT HOUSING REMOVAL | ||
| 5.3L | NA | ||
| Water Pump R & I | |||
| 4.2L | WATER PUMP REMOVAL | ||
| 5.3L | WATER PUMP REMOVAL | ||
| Engine Mechanical | |||
| 4.2L | |||
| Compression | ENGINE COMPRESSION TEST | ||
| Oil Pressure | 12 psi (85 kPa) minimum at 1200 RPM | ||
| Overhaul | ENGINE MECHANICAL SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| 5.3L | |||
| Compression | ENGINE COMPRESSION TEST | ||
| Oil pressure Minimum - Hot |
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 | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| 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 Ft. Lbs. (25 N.m) Final Pass - 50 degrees |
||
| 5.3L | First Pass - 15 Ft. Lbs. (20 N.m) Second Pass - 37 Ft. Lbs. (50 N.m) Final Pass - 74 Ft. Lbs. (100 N.m) |
||
| Fuel System | |||
| 4.2L | |||
| Pressure Specification | 50-57 psi (345-395 kPa) | ||
| Fuel Pressure Test Procedure | FUEL SYSTEM DIAGNOSIS | ||
| Fuel Filter Location | Fuel filter is contained in the fuel sender assembly inside the fuel tank. | ||
| Fuel Filter R & I | See FUEL SENDER ASSEMBLY REPLACEMENT | ||
| 5.3L | |||
| Pressure Specification | 55-62 psi (385-425 kPa) | ||
| Fuel Pressure Test Procedure | 5.3L FUEL SYSTEM DIAGNOSIS | ||
| Fuel Filter Location | Fuel filter is contained in the fuel sender assembly inside the fuel tank. | ||
| Fuel Filter R & I | See FUEL SENDER ASSEMBLY REPLACEMENT | ||
| Ignition | |||
| Firing Order & Cylinder Identification | |||
| 4.2L | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| 5.3L | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| Ignition Wires (Resistance) | 4.2L is coil on plug 5.3L 188-312 ohms |
||
| Ignition Wires (Routing) | 4.2L is coil on plug 5.3L Coil wires route straight down from coil to each spark plug |
||
| Spark Plug | |||
| 4.2L | |||
| Type | AC 41-981 | ||
| Gap | 0.0425 In. (1.08 mm) | ||
| Torque | 13 Ft. Lbs. (18 N.m) | ||
| 5.3L | |||
| Type | GM P/N 12571164 or AC 41-985 | ||
| Gap | Iridium .040 in. (1.04 mm) Platinum .060 in. (1.52 mm) |
||
| Torque | 11 Ft. Lbs. (15 N.m) | ||
| Starting | |||
| Starter | NA | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel Alignment | |||
| Adjustment Specifications | WHEEL ALIGNMENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel & Tire | |||
| Wheel Lug Nut Torque | 103 Ft. Lbs. (140 N.m) | ||