Idle Air Control Solenoid

1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Idle Air Control Solenoid
WARNING: This page is about a different car, the 1995 Lincoln Mark VIII. However, it is still accessible from the selected car via links, so may be relevant.

Faults in idle air control solenoid or circuits should set a diagnostic trouble code. See QUICK TEST in the appropriate TESTS W/CODES - EEC-IV article. If diagnostic trouble code has not been set, see CIRCUIT TEST KE in the same article for testing.

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:

  • 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.