Common Specs & Procedures Index
IMPALA COMMON SPECS & PROCEDURES
| System | Specification/Procedure | ||
|---|---|---|---|
| Air Conditioning | |||
| Service | SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Axle Nut/Hub Nut | |||
| Front | 155 ft. lbs. (210 N.m) | ||
| Battery | BATTERY USAGE | ||
| Brakes | |||
| Bleeding Sequence | RR-LF-LR-RF. See HYDRAULIC BRAKE SYSTEM BLEEDING (MANUAL) or HYDRAULIC BRAKE SYSTEM BLEEDING (PRESSURE) | ||
| Disc Brakes | |||
| Service Specifications | DISC BRAKE COMPONENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Charging | |||
| Generator | GENERATOR USAGE | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Drive Belts Adjustment & Drive Belt Routing | |||
| Adjustment | Serpentine drive belts are not adjustable | ||
| Drive Belt Routing | 3.5L See illustrations under DRIVE BELT REPLACEMENT 3.9L See illustrations under DRIVE BELT REPLACEMENT |
||
| Engine Cooling | |||
| General Service Specifications | N/A | ||
| Radiator Cap Pressure | Specification is stamped on pressure cap | ||
| Thermostat R & I | |||
| 3.5L & 3.9L | ENGINE COOLANT THERMOSTAT REPLACEMENT (LZE, LZ4, LGD) | ||
| Water Pump R & I | |||
| 3.5L & 3.9L | WATER PUMP REPLACEMENT | ||
| Engine Mechanical | |||
| 3.5L | |||
| Compression | No cylinder reading should be less than 100 psi (689 kPa). The lowest reading should not be less than 70 percent of the highest reading. ENGINE COMPRESSION TEST |
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| Oil Pressure | Oil Pressure - @ 1850 RPM 30-45 PSI (207-310 kPa) | ||
| Overhaul | ENGINE MECHANICAL SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| 3.9L | |||
| Compression | No cylinder reading should be less than 100 psi (689 kPa). The lowest reading should not be less than 70 percent of the highest reading. ENGINE COMPRESSION TEST |
||
| Oil pressure | Oil Pressure - @ 1850 RPM 30-45 PSI (207-310 kPa) | ||
| 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 Plate Torque | |||
| 3.5L & 3.9L | |||
| A/T | A/T 52 ft. lbs. (70 N.m) | ||
| M/T | First pass 37 ft. lbs. (50 N.m) Final pass + an additional 70 degrees |
||
| Fuel System | |||
| Pressure Specification | 3.5L & 3.9L 56-62 psi (386-427 kPa) | ||
| Fuel Pressure Test Procedure | 3.5L See FUEL SYSTEM DIAGNOSIS 3.9L See FUEL SYSTEM DIAGNOSIS |
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| Fuel Filter Location | 3.5L & 3.9L The fuel strainer attaches to the lower end of the fuel sender/pump module assembly | ||
| Fuel Filter R & I | 3.5L See FUEL SENDER ASSEMBLY REPLACEMENT (RPO NU6)
. 3.9L See FUEL TANK MODULE REPLACEMENT . |
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| Ignition | |||
| Firing Order & Cylinder Identification | |||
| 3.5L & 3.9L | FIRING ORDER & CYLINDER IDENTIFICATION | ||
| Ignition Wires (Resistance) | 3.5L 4,044 Ohms per meter (1,236 Ohms per ft) 3.9L 4,060 Ohms per meter (1,237 Ohms per ft) |
||
| Ignition Wires (Routing) | |||
| 3.5L | See illustrations under SPARK PLUG WIRE REPLACEMENT | ||
| 3.9L | See illustrations under SPARK PLUG WIRE REPLACEMENT | ||
| Spark Plug | |||
| 3.5L & 3.9L (Type GM P/N 12591131 or AC Delco #41-100) | |||
| Gap | 0.040 in (1.02 mm) | ||
| Torque | 11 ft. lbs. (15 N.m) | ||
| Starting | |||
| Starter | N/A | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel Alignment | |||
| Adjustment Specifications | WHEEL ALIGNMENT SPECIFICATIONS | ||
| Torque | FASTENER TIGHTENING SPECIFICATIONS | ||
| Wheel & Tire | |||
| Wheel Lug Nut Torque (See Tightening Pattern under wheel and tire INSTALLATION PROCEDURE | 100 ft. lbs. (140 N.m) | ||