1997 Hyundai Tiburon Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Idle Speed: Notes

  1. Ensure coolant temperature is 176-203°F (80-95°C). Turn all accessories off. DO NOT  check curb idle speed while cooling fan is operating. On vehicles equipped with power steering, ensure front wheels are in straight-ahead position.
  2. Connect scan tool to DLC located at lower crash pad, below steering column. Operate engine at curb idle speed and then operate engine for at least 5 seconds at 2000-3000 RPM.
  3. Run engine at idle for 2 minutes. Check idle RPM. See the IDLE SPEED SPECIFICATIONS  table. If RPM is not within specification, go to next step.
    NOTE: DO NOT  adjust throttle valve Speed Adjusting Screw (SAS). SAS is pre-adjusted at factory. Idle is controlled by Idle Speed Control (ISC) motor.
  4. Ensure timing is set to specification. Check throttle body for cracks, restriction in vacuum port or passages, or binding accelerator cable. Also, check input and output value of relevant sensors. See THROTTLE POSITION (TP) SENSOR  .
IDLE SPEED SPECIFICATIONS

Application Idle RPM
Tiburon 700-900
Fig 1: Locating Idle Speed Adjusting Screw (2.0L)
G93C79287Courtesy of HYUNDAI MOTOR CO.
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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.