Engine Control System/Fuel System

Variable Charge Motor Actuator (VCMA) Repair Procedures

10steps
~60min
3/5difficulty
0102030405011.89N·mlb·ft
Tightening torque found on this page
Done 0 of 10

Inspection

  1. Turn the ignition off.
  2. Disconnect the VCMA connector.
  3. Make sure the VCMA is not jammed by foreign material.
  4. Measure the resistance between the motor control terminals (+) and (-) of the motor.
  5. Make sure the resistance is within specification.

    Specification: Refer to "Specifications"

  6. Measure the resistance between the power terminal and the ground terminal of the position sensor.
  7. Make sure the resistance is within specification.

    Specification: Refer to "Specifications"

Removal

  1. Turn the ignition switch OFF and disconnect the negative (-) battery cable.
  2. Disconnect the VCMA connector (A).
  3. Remove the VCMA (A) by loosening the 3 mounting bolts.

Installation

  • Install the component with the specified torque.
  • Note that internal damage may occur if the component is dropped. In this case, inspect it before use.
  • The VCM actuator must be installed with the VCM valve in the fully closed position. If it is not, the VCM shaft coupling cannot be engaged with the VCM actuator.
  1. Installation is the reverse of removal. Variable charge motor actuator mounting bolt: 9.8 ~ 11.8 N·m

Test yourself

A quick Hyundai Elantra AD quiz: every answer comes with an explanation and a link to the manual page.