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.
CAPACITIES
| Application & Group | Cold Cranking Amps | Amp Hr. Rating |
|---|
| Ram Pickup | 750 | 75 |
| Application | (1) Quantity |
|---|
| Crankcase (Includes Filter) (2) | 7.0 Qts. (6.6L) |
| Cooling System (Includes Heater) | 26.0 Qts. (24.6L) |
| Automatic Transmission (Mopar ATF Plus Type 7176) 47RE (8.0L) |
| Drain & Refill | (3) 1.5 Qts. (1.4L) |
| Dry Refill | (4) 14.5-16.5 Qts. (13.7-15.6L) |
| Manual Transmission (5) |
| NV 4500 (Mopar M/T Lube P/N 4637579) 8.0L (6) | 4.0 Qts. (3.8L) |
| Front Differential (SAE 80W-90/API GL-5) Dana 60 (Model 248) 2500 & 3500 | 7.6 Pts. (3.6L) |
| Rear Differential |
| 9 1/4" Ring Gear (SAE 75W-90/API GL-5) 2500 (7) | 4.8 Pts. (2.3L) |
| Dana 60 (Model 248) (SAE 90W/API GL-5) 2500 (8) | 6.3 Pts. (3.0L) |
| Dana 70 (Model 267) (SAE 90W/API GL-5) 2500 (9) | 7.0 Pts. (3.3L) |
| Dana 80 (Model 286) (SAE 85W-90/API GL-5) (10) |
| 2WD 3500 | 6.8 Pts. (3.2L) |
| 4WD 3500 | 10.1 Pts. (4.8L) |
| Power Steering Fluid (11) | 2.7 Pts. (1.3L) |
| Power Take-Off (PTO) Adapter (Mopar ATF Plus Type 7176) 2500 & 3500 Models 2WD With A/T | 4.6 Pts. (2.2L) |
| Transfer Case (Mopar ATF Plus Type 7176) (12) |
| NV 231HD | 2.5 Pts. (1.2L) |
| NV 241 | 5.0 Pts. (2.4L) |
| NV 241HD | 6.5 Pts. (3.1L) |
| NV 241HD With Power Take-Off (PTO) | 9.0 Pts. (4.3L) |
| (1) Approximate quantity listed. (2) On gasoline engines, use an API energy conserving engine oil that is certified for gasoline engines. (3) Add this amount of fluid. Start engine and shift transmission through all gears and back to Neutral. Add additional fluid to bring fluid level to the MIN mark on dipstick. Recheck fluid level with transmission at normal operating temperature. Adjust fluid level to MAX mark on dipstick. Approximate drain and refill capacity is 4.0 qts. (3.8L). (4) Quantity may vary by type of oil cooler and oil cooler lines. (5) Verify type of transmission used before servicing. The NV 3500 uses a flywheel housing which is an integral part of the transmission housing. The NV 4500 uses a flywheel housing which is bolted to the front of the transmission and transmission contains a Power Take-Off PTO) cover on passenger's side of transmission. (6) Heavy-duty transmission is used with 8.0L. (7) Models with Trac-Lok limited slip differential must have 5 ozs. (.15L) of Mopar Trac-Lok Friction Modifier added if lubricant is changed. (8) Models with Trac-Lok limited slip differential must have 6 ozs. (.18L) of Mopar Trac-Lok Friction Modifier added if lubricant is changed. (9) Models with Power-Lok limited slip differential must have 8 ozs. (.24L) of Mopar Trac-Lok Friction Modifier added if lubricant is changed. (10) Models with Trac-Lok limited slip differential must have Mopar Trac-Lok Friction Modifier added if lubricant is changed. Add 7 ozs. (.24L) of modifier on 2WD models or 10 ozs. (.30L) on 4WD models. (11) Use only Mopar power steering fluid. DO NOT use automatic transmission fluid. (12) Transfer case may be identified by model number stamped on identification tag on rear of transfer case, just above filler plug. |
| (1) | Approximate quantity listed. |
| (2) | On gasoline engines, use an API energy conserving engine oil that is certified for gasoline engines. |
| (3) | Add this amount of fluid. Start engine and shift transmission through all gears and back to Neutral. Add additional fluid to bring fluid level to the MIN mark on dipstick. Recheck fluid level with transmission at normal operating temperature. Adjust fluid level to MAX mark on dipstick. Approximate drain and refill capacity is 4.0 qts. (3.8L). |
| (4) | Quantity may vary by type of oil cooler and oil cooler lines. |
| (5) | Verify type of transmission used before servicing. The NV 3500 uses a flywheel housing which is an integral part of the transmission housing. The NV 4500 uses a flywheel housing which is bolted to the front of the transmission and transmission contains a Power Take-Off PTO) cover on passenger's side of transmission. |
| (6) | Heavy-duty transmission is used with 8.0L. |
| (7) | Models with Trac-Lok limited slip differential must have 5 ozs. (.15L) of Mopar Trac-Lok Friction Modifier added if lubricant is changed. |
| (8) | Models with Trac-Lok limited slip differential must have 6 ozs. (.18L) of Mopar Trac-Lok Friction Modifier added if lubricant is changed. |
| (9) | Models with Power-Lok limited slip differential must have 8 ozs. (.24L) of Mopar Trac-Lok Friction Modifier added if lubricant is changed. |
| (10) | Models with Trac-Lok limited slip differential must have Mopar Trac-Lok Friction Modifier added if lubricant is changed. Add 7 ozs. (.24L) of modifier on 2WD models or 10 ozs. (.30L) on 4WD models. |
| (11) | Use only Mopar power steering fluid. DO NOT use automatic transmission fluid. |
| (12) | Transfer case may be identified by model number stamped on identification tag on rear of transfer case, just above filler plug. |
FLUID CAPACITIES (RAM PICKUP)
SERVICE INTERVALS & SPECIFICATIONS
| Component | Months | Miles |
|---|
| Air Filter |
| Normal Service | 24 | 30,000 |
| Severe Service | (3) | (4) 15,000 |
| Coolant | (5) | (5) |
| Engine Oil |
| Normal Service | 6 | 7500 |
| Severe Service | (3) | 3000 |
| Engine Oil Filter |
| Normal Service | 12 | 15,000 |
| Severe Service | (3) | 6000 |
| PCV Valve (6) |
| Normal Service | 48 | 60,000 |
| Severe Service | (3) | 30,000 |
| Spark Plugs |
| Normal Service | 24 | 30,000 |
| Severe Service | (3) | 30,000 |
| Spark Plug Wires |
| Normal Service | 48 | 60,000 |
| Severe Service | (3) | 60,000 |
| Automatic Transmission Fluid |
| Filter & Band Adjustment |
| Normal Service | 30 | 37,500 |
| Severe Service | (3) | 12,000 |
| Manual Transmission Fluid | (7) | (7) |
| Transfer Case Fluid (4WD) |
| Normal Service | 30 | 37,500 |
| Severe Service | (3) | 36,000 |
| Front Differential Fluid (4WD) (8) |
| Severe Service | (3) | 12,000 |
| Rear Differential Fluid (8) |
| Severe Service | (3) | 12,000 |
| Repack Front Wheel Bearings (2WD) |
| Normal Service | 18 | 22,500 |
| Severe Service | (3) | 21,000 |
| (1) Light-duty vehicles apply to 8.0L engine. (2) Different interval may be required for normal and severe service. Severe service is described as long periods of engine idling, frequent short trip operation of less than 5 miles, trailer towing, off-highway operation, snow removal operation, or operating in dusty or excessively hot conditions. (3) Monthly interval is not available from manufacturer. (4) Inspect air filter every 15,000 miles and replace as necessary. Replace at 30,000 miles unless previously replaced during inspection. (5) Replace coolant at 45,000 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. (6) Inspect at scheduled interval and replace as necessary. (7) Service interval is not available from manufacturer. (8) Normal service interval is not available from manufacturer. Manufacturer lists service schedule only under severe service conditions. |
| (1) | Light-duty vehicles apply to 8.0L engine. |
| (2) | Different interval may be required for normal and severe service. Severe service is described as long periods of engine idling, frequent short trip operation of less than 5 miles, trailer towing, off-highway operation, snow removal operation, or operating in dusty or excessively hot conditions. |
| (3) | Monthly interval is not available from manufacturer. |
| (4) | Inspect air filter every 15,000 miles and replace as necessary. Replace at 30,000 miles unless previously replaced during inspection. |
| (5) | Replace coolant at 45,000 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. |
| (6) | Inspect at scheduled interval and replace as necessary. |
| (7) | Service interval is not available from manufacturer. |
| (8) | Normal service interval is not available from manufacturer. Manufacturer lists service schedule only under severe service conditions. |
REPLACEMENT INTERVALS (RAM PICKUP LIGHT-DUTY VEHICLES) (1) (2)
| Component | Months | Miles |
|---|
| Air Filter |
| Normal Service | 30 | 30,000 |
| Severe Service | (3) | (4) 15,000 |
| Coolant | (5) | (5) |
| Engine Oil & Filter |
| Normal Service | 6 | 6000 |
| Severe Service | (3) | 3000 |
| Spark Plugs |
| Normal Service | 30 | 30,000 |
| Severe Service | (3) | 30,000 |
| Spark Plug Wires |
| Normal Service | 60 | 60,000 |
| Severe Service | (3) | 60,000 |
| Automatic Transmission Fluid, Filter & Band Adjustment |
| Normal Service | 24 | 24,000 |
| Severe Service | (3) | 12,000 |
| Manual Transmission Fluid | (6) | (6) |
| Transfer Case Fluid (4WD) |
| Normal Service | 36 | 36,000 |
| Severe Service | (3) | 36,000 |
| Front Differential Fluid (4WD) (7) |
| Severe Service | (3) | 12,000 |
| Rear Differential Fluid (7) |
| Severe Service | (3) | 12,000 |
| Repack Front Wheel Bearings (2WD) |
| Normal Service | 24 | 24,000 |
| Severe Service | (3) | 24,000 |
| (1) Medium-duty vehicles apply to 2500 and 3500 Calif. models with 8.0L engine. (2) Different interval may be required for normal and severe service. Severe service is described as long periods of engine idling, frequent short trip operation of less than 5 miles, trailer towing, off-highway operation, snow removal operation, or operating in dusty or excessively hot conditions. (3) Monthly interval is not available from manufacturer. (4) Inspect air filter every 15,000 miles and replace as necessary. Replace at 30,000 miles unless previously replaced during inspection. (5) 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. (6) Service interval is not available from manufacturer. (7) Normal service interval is not available from manufacturer. Manufacturer lists service schedule only under severe service conditions. |
| (1) | Medium-duty vehicles apply to 2500 and 3500 Calif. models with 8.0L engine. |
| (2) | Different interval may be required for normal and severe service. Severe service is described as long periods of engine idling, frequent short trip operation of less than 5 miles, trailer towing, off-highway operation, snow removal operation, or operating in dusty or excessively hot conditions. |
| (3) | Monthly interval is not available from manufacturer. |
| (4) | Inspect air filter every 15,000 miles and replace as necessary. Replace at 30,000 miles unless previously replaced during inspection. |
| (5) | 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. |
| (6) | Service interval is not available from manufacturer. |
| (7) | Normal service interval is not available from manufacturer. Manufacturer lists service schedule only under severe service conditions. |
REPLACEMENT INTERVALS (RAM PICKUP MEDIUM-DUTY VEHICLES) (1) (2)
| Component | Months | Miles |
|---|
| Air Filter |
| Normal Service | 24 | 24,000 |
| Severe Service | (3) | (4) 12,000 |
| Air Injection Pump Filter |
| Normal Service | 24 | 24,000 |
| Severe Service | (3) | (4) 12,000 |
| Coolant | (5) | (5) |
| Engine Oil |
| Normal Service | 6 | 6000 |
| Severe Service | (3) | 3000 |
| Engine Oil Filter |
| Normal Service | 6 | 6000 |
| Severe Service | (3) | 3000 |
| PCV Valve (5.9L Only) |
| Normal Service | 60 | 60,000 |
| Severe Service (6) | (3) | 30,000 |
| Distributor Cap & Rotor Spark Plugs |
| Normal Service | 30 | 30,000 |
| Severe Service | (3) | 30,000 |
| Spark Plug Wires |
| Normal Service | 60 | 60,000 |
| Severe Service | (3) | 60,000 |
| Oxygen Sensor (5.9L Only) |
| Normal Service | 82 | 82,500 |
| Severe Service | (3) | 82,500 |
| Automatic Transmission Fluid, Filter & Band Adjustment |
| Normal Service | 24 | 24,000 |
| Severe Service | (3) | 12,000 |
| Manual Transmission Fluid | (7) | (7) |
| Transfer Case Fluid (4WD) |
| Normal Service | 36 | 36,000 |
| Severe Service | (3) | 18,000 |
| Front Differential Fluid (4WD) (8) |
| Severe Service | (3) | 12,000 |
| Rear Differential Fluid (8) |
| Severe Service | (3) | 12,000 |
| Repack Front Wheel Bearings |
| 2WD |
| Normal Service | 24 | 24,000 |
| Severe Service | (3) | 9000 |
| 4WD |
| Normal Service | 18 | 18,000 |
| Severe Service | (3) | 6000 |
| (1) Heavy-duty vehicles apply to 2500 and 3500 Federal models with 8.0L engine. (2) Different interval may be required for normal and severe service. Severe service is described as long periods of engine idling, frequent short trip operation of less than 5 miles, trailer towing, off-highway operation, snow removal operation, or operating in dusty or excessively hot conditions. (3) Monthly interval is not available from manufacturer. (4) Inspect filter every 12,000 miles and replace as necessary. Replace at 24,000 miles unless previously replaced during inspection. (5) 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. (6) Inspect and replace as necessary. Replace PCV valve at 60,000 miles. (7) Service interval is not available from manufacturer. (8) Normal service interval is not available from manufacturer. Manufacturer lists service schedule only under severe service conditions. |
| (1) | Heavy-duty vehicles apply to 2500 and 3500 Federal models with 8.0L engine. |
| (2) | Different interval may be required for normal and severe service. Severe service is described as long periods of engine idling, frequent short trip operation of less than 5 miles, trailer towing, off-highway operation, snow removal operation, or operating in dusty or excessively hot conditions. |
| (3) | Monthly interval is not available from manufacturer. |
| (4) | Inspect filter every 12,000 miles and replace as necessary. Replace at 24,000 miles unless previously replaced during inspection. |
| (5) | 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. |
| (6) | Inspect and replace as necessary. Replace PCV valve at 60,000 miles. |
| (7) | Service interval is not available from manufacturer. |
| (8) | Normal service interval is not available from manufacturer. Manufacturer lists service schedule only under severe service conditions. |
REPLACEMENT INTERVALS RAM PICKUP HEAVY-DUTY VEHICLES) (1) (2)
ENGINE COMPRESSION
Ensure battery is fully charged. Warm engine to normal operating temperature. Disconnect wire at ignition coil to prevent engine from starting. Check engine compression with all spark plugs removed and throttle wide open.
| Application | Specification |
|---|
| Compression Ratio | 8.4:1 |
| Normal Compression Pressure | (1) |
| Minimum Compression Pressure | 100 psi (690 kPa) |
| Maximum Variation Between Cylinders | (1) |
| (1) Information is not available from manufacturer. |
| (1) | Information is not available from manufacturer. |
COMPRESSION SPECIFICATIONS
Gasoline Models
All engines are equipped with hydraulic lifters. No adjustments are required.
IGNITION COIL
| Application | Primary | Secondary |
|---|
| Ram Pickup | .53-.65 | 10,900-14,700 |
IGNITION COIL RESISTANCE - Ohms @ 70-80°F (21-27°C)
HIGH TENSION WIRE RESISTANCE
| Application | Ohms |
|---|
| All High Tension Wires | (1) |
| (1) Resistance should be 250-1000 ohms per one inch or 3000-12,000 ohms per 12 inches. |
| (1) | Resistance should be 250-1000 ohms per one inch or 3000-12,000 ohms per 12 inches. |
HIGH TENSION WIRE RESISTANCE
SPARK PLUGS
| Application | Champion No. |
|---|
| Ram Pickup | QC9MC4 |
| (1) Check spark plug application on underhood vehicle emission control label. If application differs from application listed, use application on underhood vehicle emission control label. |
| (1) | Check spark plug application on underhood vehicle emission control label. If application differs from application listed, use application on underhood vehicle emission control label. |
| Application | Gap In. (mm) | Torque Ft. Lbs. (N.m) |
|---|
| Ram Pickup | .045 (1.14) | 30 (41) |
| (1) Check spark plug gap specification on underhood vehicle emission control label. If specification differs from that listed above, use specification on underhood vehicle emission control label. |
| (1) | Check spark plug gap specification on underhood vehicle emission control label. If specification differs from that listed above, use specification on underhood vehicle emission control label. |
SPARK PLUG SPECIFICATIONS (1)
Firing Order. Scheme 5
IGNITION TIMING
Note. Ignition timing is controlled by Powertrain Control Module (PCM). Ignition timing is nonadjustable. DO NOT attempt to adjust ignition timing.
FUEL PUMP (GASOLINE)
| Application | Pressure psi (kg/cm 2 ) | Min. Vol. In 7 Sec. Pts. (L) |
|---|
| Ram Pickup | (1) 44-54 (3.1-3.8) | .5 (24) |
| (1) Manufacturer lists fuel pressure with engine idling. |
| (1) | Manufacturer lists fuel pressure with engine idling. |
INJECTOR RESISTANCE
| Application | Ohms @ 68°F (20°C) |
|---|
| All Models | 10-16 |
IDLE SPEED & MIXTURE
Note. On all models, idle speed and mixture are controlled by Powertrain Control Module (PCM). No adjustment is required.
| Application | RPM |
|---|
| Gasoline Models | (1) |
| (1) Idle speed is controlled by Powertrain Control Module PCM) and idle air control motor. Idle speed is nonadjustable. |
| (1) | Idle speed is controlled by Powertrain Control Module PCM) and idle air control motor. Idle speed is nonadjustable. |
IDLE SPEED SPECIFICATIONS
THROTTLE BODY MINIMUM AIRFLOW IDLE SPEED
| Application | RPM |
|---|
| Ram Pickup | (1) |
| (1) Does not apply to this application. |
| (1) | Does not apply to this application. |
THROTTLE BODY MINIMUM AIRFLOW IDLE SPEED SPECIFICATIONS
