ISC Servo

1987 Chrysler Conquest 2.6 H, StandardSECTION ISC Servo
  1. Connect voltmeter between terminal No. 3 and injection mixer body. DO NOT  disconnect ISC servo connector. Turn ignition switch from the "OFF" position to the "ON" position. While keeping ignition on for at least 15 seconds, check voltmeter reading.
  2. With ignition switch on, voltmeter should read 11-13 volts. After momentary indication of one volt, needle should stabilize at 6-13 volts. This indicates ISC servo and position switch are operating normally. Turn ignition switch to "OFF" to remove voltmeter.
RENDER: 1.0x

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When to See a Mechanic

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

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