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2011 FORD F-150
3.5L V6 EcoBoost•4WD•AUTOMATIC•gas•turbo
6 active safety recalls on this vehicle — view recalls
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Repairs438Labor529Torque3639Fluid9DTC939Battery1Maintenance0Recalls6
P1568low severityPowertrain

Speed Control Unable to Hold Speed

on 2011 Ford F-150 3.5L V6 EcoBoost · 4WD

What this code means

The cruise control system cannot maintain the set speed. The PCM detects excessive variation between set speed and actual vehicle speed during cruise control operation.

Symptoms

  • Cruise control disengages
  • Speed surges while cruise is active
  • Check Engine Light

Common causes

  • Faulty cruise control servo/actuator
  • Vacuum leak to cruise control actuator (older models)
  • Throttle cable or linkage issue
  • Vehicle speed sensor issue
  • ETC system fault (drive-by-wire models)

Diagnostic steps

  1. Test cruise control actuator operation
  2. Check vacuum supply to servo (if vacuum operated)
  3. Verify vehicle speed sensor accuracy
  4. Check for other DTCs related to throttle or speed

Repair notes

Replace cruise control actuator if faulty. Repair vacuum leaks. Address related DTCs.

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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