LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 1978 >> Fiesta >> Repair and Diagnosis >> Engine Performance >> Ignition System >> MOTORCRAFT DURA-Spark & Solid State Ignition >> Testing >> Battery Source Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Battery Source Test

  1. Without disconnecting coil, connect voltmeter between coil "BAT" (positive) terminal and engine ground. On Solid State ignition, connect a jumper wire from negative coil terminal to ground. Turn ignition on.
  2. A reading of 5.5-6.5 volts (11-14 volts on Dura-Spark I ignition system) indicates that the primary circuit from battery to coil is satisfactory. If voltage is incorrect, check primary wiring. Repair wiring as necessary.
scientia non olet · About LEMON Manuals