INTRODUCTION
Use this article to quickly find specifications related to servicing and on-vehicle adjustments. This is a quick-reference article to use when you are familiar with an adjustment procedure and only need a specification.
BATTERY SPECIFICATIONS
| Application & Group | Cold Cranking Amps | Amp Hr. Rating |
|---|
| 5.9L (Diesel) | 750 | (1) |
| (1) Information not available at time of publication. |
| (1) | Information not available at time of publication. |
FLUID CAPACITIES
| Application | (1) Quantity |
|---|
| Automatic Transmission (Mopar ATF Plus Type 7176) |
| Drain & Refill | 4.0 Qts. (3.8L) |
| Dry Refill | (2) 17.0 Qts. (16.1L) |
| Cooling System (Includes Heater) | 28.0 Qts. (26.5L) |
| Crankcase (Includes Filter) (3) | 10.0 Qts. (9.5L) |
| Front Differential (SAE 80W-90/API GL-5) |
| Dana 44 (1500 & 2500) | 6.8 Pts. (3.2L) |
| Dana 60 (2500 & 3500) | 7.6 Pts. (3.6L) |
| Manual Transmission (4) |
| NV4500 (Mopar M/T Lube P/N 4637579) (5) . | 4.0 Qts. (3.8L) |
| Power Steering Fluid (6) | 2.7 Pts. (1.3L) |
| Rear Differential (SAE 80W-90/API GL-5) (7) |
| 9 1/4" Ring Gear (2500) | 4.8 Pts. (2.3L) |
| Dana 60 (2500) | 6.3 Pts. (3.0L) |
| Dana 70 (2500) | 7.0 Pts. (3.3L) |
| Dana 80 (2WD) | 6.8 Pts. (3.2L) |
| Power Take-Off (PTO) Adapter (Mopar ATF Plus Type 7176) |
| 2WD With A/T | 4.6 Pts. (2.2L) |
| Transfer Case (Mopar ATF Plus Type 7176) (8) |
| NV231 HD | 2.5 Pts. (1.2L) |
| NV241 | 4.7 Pts. (2.2L) |
| NV241 HD | 6.5 Pts. (3.1L) |
| NV241 With Power Take-Off (PTO) | 9.0 Pts. (4.3L) |
| (1) Approximate quantity listed. (2) Quantity may vary by type of oil cooler/cooler lines. (3) Use engine oil with API SH or SH/CD rating for gasoline engines. Use API CE or CE/SG rating for diesel engines. (4) Verify type of transmission used before servicing. The NV3500 uses a flywheel housing which is an integral part of the transmission housing. The NV4500 uses a flywheel housing which is bolted to the front of the transmission and transmission contains a Power Take-Off (PTO) cover. (5) Heavy-duty transmission. (6) Use only Mopar power steering fluid. DO NOT use automatic transmission fluid. (7) Models with Trac-Lok or Power-Lok limited slip differentials must have Mopar Trac-Lok/Power-Lok Friction Modifier added if lubricant is changed. On all models except Dana 80 (4WD), 6 ozs. (.18L) of friction modifier is required. On Dana 80 (4WD) models, 10 ozs. (.30L) of friction modifier is required. (8) Transfer case may be identified by model number stamped on ID tag on rear of transfer case, just above filler plug. |
| (1) | Approximate quantity listed. |
| (2) | Quantity may vary by type of oil cooler/cooler lines. |
| (3) | Use engine oil with API SH or SH/CD rating for gasoline engines. Use API CE or CE/SG rating for diesel engines. |
| (4) | Verify type of transmission used before servicing. The NV3500 uses a flywheel housing which is an integral part of the transmission housing. The NV4500 uses a flywheel housing which is bolted to the front of the transmission and transmission contains a Power Take-Off (PTO) cover. |
| (5) | Heavy-duty transmission. |
| (6) | Use only Mopar power steering fluid. DO NOT use automatic transmission fluid. |
| (7) | Models with Trac-Lok or Power-Lok limited slip differentials must have Mopar Trac-Lok/Power-Lok Friction Modifier added if lubricant is changed. On all models except Dana 80 (4WD), 6 ozs. (.18L) of friction modifier is required. On Dana 80 (4WD) models, 10 ozs. (.30L) of friction modifier is required. |
| (8) | Transfer case may be identified by model number stamped on ID tag on rear of transfer case, just above filler plug. |
REPLACEMENT INTERVALS
| Component | Months | Miles |
|---|
| Air Filter | (2) | (2) |
| Automatic Transmission Fluid, Filter & Band Adjustment |
| Normal Service | 24 | 24,000 |
| Severe Service | (3) | 12,000 |
| Coolant | (4) 36 | (4) |
| Engine Oil & Filter |
| Normal Service | 6 | 6000 |
| Severe Service | (3) | 3000 |
| Front Differential Fluid (4WD) (5) |
| Severe Service | (3) | 12,000 |
| Fuel Filter |
| Normal Service | 12 | 12,000 |
| Severe Service | (3) | 12,000 |
| Manual Transmission Fluid | (6) | (6) |
| Rear Differential Fluid (5) |
| Severe Service | (3) | 12,000 |
| Repack Front Wheel Bearings (2WD) |
| Normal Service | 24 | 24,000 |
| Severe Service | (3) | 24,000 |
| Transfer Case Fluid (4WD) |
| Normal Service | 36 | 36,000 |
| Severe Service | (3) | 36,000 |
| Valve Clearance Adjustment |
| Normal Service | 24 | 24,000 |
| Severe Service | (3) | 24,000 |
| (1) Different interval is required for normal and severe service. Severe service is described as trailer towing, off-highway operation, snow removal operation, or operating in dusty or excessively hot conditions. (2) Service interval not available at time of publication. Use filter minder on top of air cleaner housing to determine condition of air filter. If filter minder is in the Red zone, replace air filter. Reset filter minder by depressing button on top of filter minder. (3) Monthly interval not available at time of publication. (4) Replace coolant at 36,000 miles or 36 months whichever occurs first. Replace coolant at 36 months regardless of mileage. After first coolant change, replace coolant every 24 months or 30,000 miles thereafter. (5) Normal service interval not available at time of publication. Manufacturer lists service schedule only under severe service conditions. (6) Service interval not available at time of publication. |
| (1) | Different interval is required for normal and severe service. Severe service is described as trailer towing, off-highway operation, snow removal operation, or operating in dusty or excessively hot conditions. |
| (2) | Service interval not available at time of publication. Use filter minder on top of air cleaner housing to determine condition of air filter. If filter minder is in the Red zone, replace air filter. Reset filter minder by depressing button on top of filter minder. |
| (3) | Monthly interval not available at time of publication. |
| (4) | Replace coolant at 36,000 miles or 36 months whichever occurs first. Replace coolant at 36 months regardless of mileage. After first coolant change, replace coolant every 24 months or 30,000 miles thereafter. |
| (5) | Normal service interval not available at time of publication. Manufacturer lists service schedule only under severe service conditions. |
| (6) | Service interval not available at time of publication. |
REPLACEMENT INTERVALS (1)
BELT ADJUSTMENT
Note. Automatic belt tensioner is used. Belt tension adjustment is not required.
ENGINE COMPRESSION
Check engine compression with engine at normal operating temperature at specified cranking speed, all spark plugs removed and throttle wide open.
| Application | Specification |
|---|
| Compression Ratio | 17.5:1 |
| Compression Pressure | (1) |
| Minimum Compression Pressure | (1) |
| Maximum Variation Between Cylinders | (1) |
| (1) Information not available at time of publication. |
| (1) | Information not available at time of publication. |
COMPRESSION SPECIFICATIONS
VALVE CLEARANCE
Adjust valve clearance with engine temperature less than 140°F (60°C). See VALVE CLEARANCE SPECIFICATIONS table.
| Application | In. (mm) |
|---|
| Exhaust Valves | .020 (.51) |
| Intake Valves | .010 (.25) |
| (1) Adjust valves with engine temp. less than 140°F (60°C). |
| (1) | Adjust valves with engine temp. less than 140°F (60°C). |
VALVE CLEARANCE SPECIFICATIONS (1)
Firing Order. Scheme 4
IGNITION TIMING
Note. Ignition timing is controlled by Powertrain Control Module (PCM). Ignition timing is non-adjustable. DO NOT attempt to adjust ignition timing.
FUEL INJECTION PUMP
Note. For fuel injection pump timing, see the ADJUSTMENTS - 5.9L (DIESEL) article.
| Application | Output Pressure psi (kPa) |
|---|
| Ram Pickup 5.9L Diesel | (1) 17,405 (120,007) |
| (1) Pressure testing procedure not available at time of publication. |
| (1) | Pressure testing procedure not available at time of publication. |
FUEL INJECTION PUMP PERFORMANCE
FUEL TRANSFER PUMP PERFORMANCE
| Application | Specification |
|---|
| Output Pressure (1) | 25 psi (172 kPa) |
| Output Volume (2) |
| 200 RPM | 10.2 Ozs. (.30L) |
| 225 RPM | 11.9 Ozs. (.35L) |
| 250 RPM | 12.7 Ozs. (.38L) |
| 275 RPM | 13.6 Ozs. (.40L) |
| 300 RPM | 15.3 Ozs. (.45L) |
| 400 RPM | 20.3 Ozs. (.60L) |
| (1) Output pressure measured with engine running. (2) Output volume measured after cranking engine for 30 sec. DO NOT not crank engine for more than 30 seconds. |
| (1) | Output pressure measured with engine running. |
| (2) | Output volume measured after cranking engine for 30 sec. DO NOT not crank engine for more than 30 seconds. |
FUEL TRANSFER PUMP PERFORMANCE
INJECTOR OPENING PRESSURE
| Application | Psi (kPa) |
|---|
| Ram Pickup 5.9L | 3822 (26,352) |
| (1) Replace injector if opening pressure is not within specification. |
| (1) | Replace injector if opening pressure is not within specification. |
INJECTOR OPENING PRESSURE (1)
IDLE SPEED & MIXTURE
| Application | RPM |
|---|
| A/T | (2) 750-800 |
| M/T | (3) 780 |
| (1) Engine idle speed may be stamped on engine data plate, located in front of fuel injection pump. If engine data plate specification varies from specification listed, use engine data plate specification. (2) Check with engine at normal operating temperature, transmission in Drive and A/C on. (3) Check with engine at normal operating temperature, transmission in Neutral and A/C on. |
| (1) | Engine idle speed may be stamped on engine data plate, located in front of fuel injection pump. If engine data plate specification varies from specification listed, use engine data plate specification. |
| (2) | Check with engine at normal operating temperature, transmission in Drive and A/C on. |
| (3) | Check with engine at normal operating temperature, transmission in Neutral and A/C on. |
IDLE SPEED SPECIFICATIONS (1)
THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS
| Throttle Opening | (1) (2) Volts |
|---|
| 5.9L (Diesel With A/T) |
| At Idle | .80-1.20 |
| At Full Throttle | (3) |
| (1) Measure voltage at center terminal on throttle position sensor with ignition on. (2) Voltage should increase smoothly when moving throttle from idle to full throttle. (3) At full throttle voltage should be 2.2-2.9 volts more than voltage obtained at idle. |
| (1) | Measure voltage at center terminal on throttle position sensor with ignition on. |
| (2) | Voltage should increase smoothly when moving throttle from idle to full throttle. |
| (3) | At full throttle voltage should be 2.2-2.9 volts more than voltage obtained at idle. |
THROTTLE POSITION SENSOR VOLTAGE SPECIFICATIONS
