Common Specs And Procedures Index

IMPALA COMMON SPECS AND PROCEDURES

System		Specification/Procedure
Air Conditioning
Service		APPROXIMATE FLUID CAPACITIES
Torque		FASTENER SPECIFICATIONS
Axle Nut/Hub Nut
Front		First Pass 111 lb ft (150 N.m) Second Pass Loosen 45 degrees Last Pass 185 lb ft (250 N.m)
Battery		NA
Brakes
Bleeding Sequence		RIGHT REAR, LEFT REAR, RIGHT FRONT, LEFT FRONT Manual See HYDRAULIC BRAKE SYSTEM BLEEDING (MANUAL) . Pressure See HYDRAULIC BRAKE SYSTEM BLEEDING (PRESSURE) .
Disc Brakes
	Service Specifications	DISC BRAKE COMPONENT SPECIFICATIONS
	Torque	FASTENER SPECIFICATIONS
Charging
Generator		NA
Torque		CHARGING SYSTEM TEST
Drive Belts
Adjustment		Serpentine belt used, not adjustable
Drive Belt Routing		See figure under DRIVE BELT REPLACEMENT for 2.5L. See figure under DRIVE BELT REPLACEMENT for 3.6L.
Engine Cooling
General Service Specifications		N/A
	Radiator Cap Pressure	Pressure stamped on cap
	Thermostat R & I
	2.5L	ENGINE COOLANT THERMOSTAT HOUSING REPLACEMENT (LCV)
	3.6L	ENGINE COOLANT THERMOSTAT REPLACEMENT (LFX)
	Water Pump R & I
	2.5L	WATER PUMP REPLACEMENT (LCV)
	3.6L	WATER PUMP REPLACEMENT (LFX)
Engine Mechanical
2.5L
	Compression	No cylinder reading should be less than 690 kPa (100 psi). The lowest reading should not be less than 70 percent of the highest reading. See ENGINE COMPRESSION TEST
	Oil Pressure	Oil Pressure - @700 RPM 100°C 22-32 psi (154-220 kPa)
	Overhaul	ENGINE MECHANICAL SPECIFICATIONS
	Torque	FASTENER SPECIFICATIONS
3.6L
	Compression	No cylinder reading should be less than 690 kPa (100 psi). The lowest reading should not be less than 70 percent of the highest reading. See ENGINE COMPRESSION TEST
	Oil Pressure	Minimum @ Idle - 69 kPa (10 psi) Minimum @ 2,000 RPM - 138 kPa (20 psi)
	Overhaul	ENGINE MECHANICAL SPECIFICATIONS
	Torque	FASTENER SPECIFICATIONS
Fluid Specifications		See FLUIDS under MAINTENANCE/FLUIDS tab. From within Manager or Service Writer, click the "30/60/90 Interval" or "Maint." button.
Flywheel/Flex Plate/Drive Plate Torque		2.5L First Pass - 22 lb ft (30 N.m) Final Pass - additional 40 Degrees 3.6L First Pass - 22 lb ft (30 N.m) Final Pass - additional 45 Degrees
Fuel System
Pressure Specification		2.5L Key On, Not Running - 345-650 kPa (50-94 psi) 2.5L Running - Scan Tool Reading 300-400 kPa (43-58 psi) 3.6L Key On, Not Running - 345-690 kPa (50-100 psi) 3.6L Running - Scan Tool Reading 300-400 kPa (43-58 psi)
	Fuel Pressure Test Procedure	See 2.5L CIRCUIT/SYSTEM VERIFICATION See 3.6L CIRCUIT/SYSTEM VERIFICATION .
	Fuel Filter Location	Fuel filter is part of the fuel tank fuel pump module. (Gas) Multiple Fuel Filters (CNG) See R&I
	Fuel Filter R & I (CNG) Fuel Filter R & I (GAS)	2.5L FUEL TANK FUEL PUMP MODULE REPLACEMENT (NT5, NT7) or 2.5L FUEL TANK FUEL PUMP MODULE REPLACEMENT (NU6) 3.6L FUEL TANK FUEL PUMP MODULE REPLACEMENT (NT5, NT7) or 3.6L FUEL TANK FUEL PUMP MODULE REPLACEMENT (NU6)
Ignition
Firing Order & Cylinder Identification		FIRING ORDER & CYLINDER IDENTIFICATION
Ignition Wires (Resistance)		Individual Ignition Coil/Module Assemblies
Ignition Wires (Routing)
2.5L Or 3.6L		Coil on plug.
Spark Plug
2.5L (Refer to Electronic Parts Catalog)
	Gap	0.0375-0.0433 in (0.95-1.10 mm)
	Torque	15 lb ft (20 N.m)
3.6L (Refer to Electronic Parts Catalog)
	Gap	0.0375-0.0433 in (0.95-1.10 mm)
	Torque	13 lb ft (18 N.m)
Starting
Starter		N/A
Torque		FASTENER SPECIFICATIONS
Wheel Alignment
	Adjustment Specifications	WHEEL ALIGNMENT SPECIFICATIONS
	Torque	FASTENER SPECIFICATIONS
Wheel & Tire
Wheel Lug Nut Torque		111 lb ft (150 N.m) For tightening sequence, see Wheel Nut Tightening Sequence figure under INSTALLATION PROCEDURE .