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2015 FORD F-150
5.0L V8 Coyote•RWD•AUTOMATIC•gas
14 active safety recalls on this vehicle — view recalls
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Repairs420Labor1001Torque8720Fluid18DTC3688Battery2Maintenance0Recalls14
P0497moderate severityPowertrain

Evaporative Emission System Low Purge Flow

on 2015 Ford F-150 5.0L V8 Coyote · RWD

What this code means

The EVAP system is flowing less purge vapor than expected. This usually points to a blocked line or a purge valve that won't open.

Symptoms

  • Check engine light on
  • Fuel odor near vehicle
  • Possible failed emissions test

Common causes

  • Clogged or restricted purge line
  • Purge valve stuck closed
  • Faulty purge valve solenoid
  • Blocked charcoal canister

Diagnostic steps

  1. Scan for related EVAP codes
  2. Inspect purge lines for blockage
  3. Test purge valve for proper opening
  4. Check charcoal canister for restriction
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