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2002 FORD THUNDERBIRD
3.9L DOHC V8 (252 hp)•FWD•AUTOMATIC•gas
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor974Torque985Fluid14DTC1870Battery2Maintenance0Recalls2
P0441low severityPowertrain

EVAP Incorrect Purge Flow

on 2002 Ford Thunderbird 3.9L DOHC V8 (252 hp) · FWD

What this code means

The EVAP system purge flow is not as expected.

Symptoms

  • Check Engine Light
  • Failed emissions

Common causes

  • Faulty purge valve (stuck open or closed)
  • Disconnected purge hose
  • Blocked purge port
  • Faulty vent valve

Diagnostic steps

  1. Test purge valve operation
  2. Check purge flow with scan tool command
  3. Inspect hoses
  4. Test vent valve

Repair notes

Replace purge valve. Check hoses for cracks or disconnection.

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