Ignition System: Distributors
On 5.0L models, the TFI-IV ignition system is used. On 5.8L Police models, the Dura Spark II with UIC (Universal Integrated Circuit) ignition system is used. No adjustments are required on either system.
IGNITION COIL RESISTANCE (OHMS)
| Application | Primary | Secondary |
|---|---|---|
| 5.0L TFI-IV | .3-1.0 | 8000-11,500 |
| 5.8L Dura Spark II w/UIC | .8-1.6 | 7700-10,500 |