GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Battery | |
| Voltage | 12 volt |
| Cold cranking amps | 650 CCA |
| Battery amps rating | 72 amp/hr |
| Generator, 4.0L | |
| Rating | 75/120 amp (max) @ 1800-6000 generator rpm, approx. 500-2000 engine rpm |
| Generator pulley ratio | 2.66:1 |
| Voltage regulator type | Electronic internal with generator |
| Generator, 4.6L | |
| Rating | 75/120 amp (max) @ 1800-6000 generator rpm, approx. 500-2000 engine rpm |
| Generator pulley ratio | 2.90:1 |
| Voltage regulator type | Electronic internal with generator |
GENERAL SPECIFICATIONS
TORQUE SPECIFICATIONS
| Description | Nm |
|---|---|
| Battery hold-down bolt | 10 |
| Battery tray bolts | 30 |
| Battery junction box nut | 12 |
| Engine cover assembly nuts (4.6L) | 6 |
| Starter solenoid wire cable nut | 6 |
| Starter motor positive cable nut | 13 |
| Battery cable engine ground bolt (4.6L) | 25 |
| Battery cable engine ground bolt (4.0L) | 47 |
| Starter motor ground cable stud bolt (4.0L) | 25 |
| Battery cable body ground bolt | 8 |
| Battery cable engine front cover bracket nut (4.0L) | 10 |
| Battery cable frame bracket bolt (4.0L) | 15 |
| Battery cable front cover lower bracket nut (4.6L) | 25 |
| Battery cable right engine mount bracket bolt (4.6L) | 25 |
| Battery cable bracket nuts (4.6L) | 25 |
| Negative battery cable terminal bolt | 6 |
| Positive battery cable terminal bolt | 6 |
| Generator B+ terminal nut | 8 |
| Lower generator bolts (4.6L) | 25 |
| Generator bracket bolts (4.6L) | 10 |
| Generator mounting bolts (4.0L) | 47 |
| Generator pulley nut | 109 |
TORQUE SPECIFICATIONS
The charging system is a negative ground system with the generator (including an internal voltage regulator) being belt-driven by the engine accessory drive system. When the engine is started, the generator begins to generate alternating current (AC) which is internally converted to direct current (DC). This current is then supplied to the vehicle's electrical system through the output (B+) terminal of the generator.
The battery is a 12-volt direct current source connected in a negative ground system. The battery case is sealed and includes two vent holes to release gases. The battery has three major functions
- engine cranking power source
- voltage stabilizer for the electrical system
- temporary power when electrical loads exceed the generator output current