Ford Engine Tech Tip: Intermittent Rattling Noise While Driving

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Ford Tech Tip: Intermittent Rattling Noise While Driving

All affected vehicles typically have a 5.4L 3-valve engine.

Tomorrow's Technician Staff
By Tomorrow's Technician Staff
Tomorrow’s Tech (TT) delivers technical information for servicing today’s vehicles to more than 40,000 automotive students enrolled in more than 1,100 technical and vocational schools across the country.
Published:


Models:

  • FORD
  • 2004-2010 F-150
  • 2005-2010 F-250, F-350
  • 2005-2013 Expedition
  • LINCOLN
  • 2006-2008 Mark LT
  • 2005-2013 Navigator
  • NOTE: All affected vehicles have the 5.4L 3-valve engine

Issue:

Vehicles equipped with 5.4L 3-valve engine may exhibit an intermittent rattle noise while driving from idle up to 1,200 rpm when the engine is at operating temperature. In severe cases, a rough idle and diagnostic trouble codes (DTCs) P0022, P0021, P0340, and/or P0341 may be stored in the powertrain control module (PCM).

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Action:

Replace the left and right variable cam timing (VCT) solenoids. 

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