1992 Geo Prizm Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Ignition Coil Power Source (Prizm)

Ignition coil is located in the distributor. Disconnect electrical connector from distributor. Turn ignition on. Using voltmeter, check voltage between Black/Orange wire of distributor connector and ground. If battery voltage does not exist, check for open circuit in Black/Orange wire between distributor connector and ignition switch.

Factory Service Tools

Use the Manual With the Right Hardware

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

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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.

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