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1997 FORD THUNDERBIRD
5.0L V8•FWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor493Torque493Fluid7DTC1624Battery1Maintenance0Recalls2
P0397moderate severityPowertrain

Camshaft Position Sensor B Circuit (Bank 2 or Single Sensor)

on 1997 Ford Thunderbird 5.0L V8 · FWD

What this code means

The PCM detects a general circuit fault in the camshaft position sensor B for Bank 2. This affects valve timing feedback and engine synchronization.

Symptoms

  • Hard starting
  • Rough running
  • Check engine light on

Common causes

  • Faulty camshaft position sensor
  • Wiring or connector damage
  • Damaged reluctor wheel
  • PCM circuit fault

Diagnostic steps

  1. Scan for cam sensor codes
  2. Inspect sensor wiring and connector
  3. Verify sensor air gap and tone ring
  4. Replace sensor if signal is faulty
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