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Home >> Ford >> 1992 >> Explorer 2D Utility, RWD, Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Testing >> Speed Will Not Set

Speed Will Not Set

  1. Inspect throttle actuator for proper operation and adjustment. Service or adjust as necessary. See ACTUATOR CABLE under ADJUSTMENTS. Go to next step if actuator is okay.
  2. Inspect all electrical and vacuum connections. Repair as necessary. If all connections are okay, go to next step.
  3. Check control switch and circuit. See CONTROL SWITCH & CIRCUIT TEST. Service and retest if necessary. If okay, go to next step.
  4. Check vacuum dump valve. See VACUUM DUMP VALVE TEST. Service vacuum dump valve if necessary. If vacuum dump valve is okay, go to next step for vehicles with A/T, or to step 6) for vehicles with M/T.
  5. Check clutch switch (if equipped). See CLUTCH SWITCH TEST. Service clutch switch if necessary. If clutch switch is okay, go to next step.
  6. Step on brake pedal. Check for proper stoplight operation. Repair stoplight circuit if necessary. If stoplights operate properly, go to next step.
  7. Check servo. See SERVO TEST. Tap servo body lightly while testing. Replace servo if defective. If servo is okay, go to next step.
  8. Check speed sensor. See SPEED SENSOR TEST. Replace speed sensor if defective. If speed sensor is okay, perform AMPLIFIER TEST.
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