Common Specs & Procedures
RAM 2500 HD & 3500 HD COMMON SPECS & PROCEDURES
| System | Specification/Procedure | ||
|---|---|---|---|
| Air Conditioning | |||
| Service | A/C SYSTEM SPECIFICATIONS | ||
| Torque | FASTENER TORQUE SPECIFICATIONS | ||
| Axle Nut/Hub Nut | |||
| Front | 263 ft. lbs. (356 N.m) | ||
| Rear | N/A | ||
| Battery | SPECIFICATIONS | ||
| Brakes | |||
| Bleeding Sequence | Base Brakes: STANDARD PROCEDURE Antilock Brakes: STANDARD PROCEDURE - ABS BRAKE BLEEDING | ||
| Disc Brakes | |||
| Service Specifications | BASE BRAKE | ||
| Torque | Base Brakes: TORQUE SPECIFICATIONS , Antilock Brakes: SPECIFICATIONS | ||
| Drum Brakes | |||
| Service Specifications | N/A | ||
| Torque | N/A | ||
| Charging | |||
| Generator | GENERATOR RATINGS | ||
| Torque | TORQUE SPECIFICATIONS - GENERATOR / CHARGING SYSTEM | ||
| Drive Belts | |||
| Adjustment | Serpentine belt used, not adjustable. | ||
| Drive Belt Routing | Refer to appropriate "Belt Routing" figure under INSTALLATION . | ||
| Engine Cooling | |||
| General Service Specifications | FILL VOLUMES | ||
| Radiator Cap Pressure | 21 psi (145 kPa) | ||
| Thermostat R & I | THERMOSTAT | ||
| Water Pump R & I | PUMP, WATER | ||
| Engine Mechanical | |||
| 5.7L | |||
| Compression | Compression should not be less than 689 kPa (100 psi) and not vary more than 25 percent from cylinder to cylinder. | ||
| Oil Pressure | At Curb Idle Speed (MIN): 4 psi (25 kPa), @ 3000 RPM: 25-110 psi (170-758 kPa), If pressure is zero at curb idle, DO NOT run engine. | ||
| Overhaul | ENGINE SPECIFICATIONS | ||
| Torque | TORQUE SPECIFICATIONS | ||
| 6.4L | |||
| Compression | Compression should not be less than 689 kPa (100 psi) and not vary more than 25 percent from cylinder to cylinder. | ||
| Oil pressure | At Curb Idle Speed (MIN): 4 psi (25 kPa), @ 3000 RPM: 25-110 psi (170-758 kPa), If pressure is zero at curb idle, DO NOT run engine. | ||
| Overhaul | ENGINE SPECIFICATIONS | ||
| Torque | TORQUE SPECIFICATIONS | ||
| 6.7L | |||
| Compression | The minimum cylinder pressure is 350 psi. Cylinder pressure should be within 20% from cylinder to cylinder. | ||
| Oil pressure | Refer to appropriate OIL PRESSURE table under TECHNICAL SPECIFICATIONS . | ||
| Overhaul | TECHNICAL SPECIFICATIONS | ||
| Torque | TORQUE 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 | |||
| 5.7L & 6.4L GAS | |||
| Flexplate | 70 ft. lbs. (95 N.m) | ||
| Flywheel | 55 ft. lbs. (75 N.m) | ||
| 6.7L DIESEL | |||
| Dual Mass Flywheel Bolts | 45 ft. lbs. (61 N.m) | ||
| Flexplate | 101 ft. lbs. (137 N.m) | ||
| Flywheel | 101 ft. lbs. (137 N.m) | ||
| Fuel System | |||
| Pressure Specification | Diesel: As high as 26, 107 psi (180, 000 kPa); CNG & Gas: 58 psi +/- 2 psi | ||
| Fuel Pressure Test Procedure | Diesel: CHECKING THE FUEL DELIVERY SYSTEM ; Gas: CHECKING THE FUEL DELIVERY SYSTEM (HARD START) | ||
| Fuel Filter Location | Gas: Fuel filter is part of fuel pump module. Diesel: Fuel filter 1 is located on the engine. Fuel filter 2 is located on the frame rail. |
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| Fuel Filter R & I | Diesel: FILTER, FUEL ; Gas: MODULE, FUEL PUMP | ||
| Ignition | |||
| Firing Order & Cylinder Identification | The firing order is 1-8-4-3-6-5-7-2. Also see FIRING ORDER & CYLINDER IDENTIFICATION . | ||
| Ignition Wires (Resistance) | Coil On Plug | ||
| Ignition Wires (Routing) | Coil On Plug | ||
| Spark Plug | |||
| 5.7L & 6.4L | |||
| Type | LZFR5C-11G | ||
| Gap | .043 in. (1.1 mm) | ||
| Torque | 13 (± 2) ft. lbs. (18 (± 3) N.m): Torque critical tapered design. Do not exceed 15 ft. lbs. | ||
| Starting | |||
| Starter | STARTING SYSTEM SPECIFICATIONS | ||
| Torque | TORQUE SPECIFICATIONS | ||
| Wheel Alignment | |||
| Adjustment Specifications | TECHNICAL SPECIFICATIONS | ||
| Torque | Front link and coil suspension: TORQUE SPECIFICATIONS | ||
| Wheel & Tire | |||
| Wheel Lug Nut Torque (SRW) | Flanged Lug Nut: Refer to TORQUE SPECIFICATIONS Cone Lug Nut: Refer to TORQUE SPECIFICATIONS |
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