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Speed Control Is Intermittent

  1. Road test vehicle to verify condition. Note when intermittent condition occurs.
  2. Inspect all electrical and vacuum connections. Repair as necessary. If condition occurs while cruising, go to next step. If condition occurs while operating switches or while turning steering wheel, go to step 5).
  3. Check for vacuum at servo. If there is no vacuum, service vacuum supply. If vacuum is okay, go to next step.
  4. Check servo. See SERVO TEST. Tap servo body lightly while testing. Replace servo if defective. If servo is okay, substitute known good amplifier, then go to next step.
  5. Check all switches. See CONTROL SWITCH & CIRCUIT TEST. Service as necessary.
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