1978 Subaru GF Automatic TransFACTORY OEM SERVICE PROCEDURE

Ignition Coil Check

  1. Turn ignition off. Disconnect harness connector from ignition coil negative terminal. Using an ohmmeter set to x1 range, connect ohmmeter to coil primary terminals. Resistance reading should be 0.84-1.02 ohms.
  2. Set ohmmeter to x1000 range. Connect ohmmeter leads to coil's positive terminal and coil tower. Resistance reading should be 8200-12, 400 ohms. If either reading is not within specifications, replace ignition coil.
Chapter Navigation
Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.