Powertrain, generic · Transmission

P08D9 Shift Solenoid K Intermittent

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

Meant for a shift solenoid K fault that appears and vanishes, such as a connector losing contact over bumps or a coil dropping out when hot. No manufacturer documents this code publicly, and none of the sources checked even uses the intermittent code of solenoid A, P0754; GM and Ford catch brief interruptions with their open, short and functional codes instead. Ford runs its electrical checks continuously with 0.5 to 5 second filters. CARB asks for circuit monitoring of output components without prescribing an intermittent code. Unlike the permanent fault P08D8, the symptoms here come and go: an occasional hard shift or a warning light that is gone after a restart.

Likely causes

Loose or fretted terminal in the transmission connector
Chafed wire that touches only under vibration
Solenoid coil dropping out at high fluid temperature

Symptoms

  • Warning light that comes and goes
  • Occasional harsh or late shift
  • Sporadic limp mode that clears after restart

Repair estimate

DifficultyHardWorkshop job
Parts and labour€100–1,500
Time1–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

shift solenoid kwiring harness

Related codes

P08D0P08D5P08D8P08DDP08E2P0754

References: fordservicecontent.com, law.cornell.edu.