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1999 DODGE RAM VAN

3.9L V6•4WD•AUTOMATIC•gas
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Repairs0Labor564Torque2402Fluid9DTC645Battery0Maintenance0Recalls0
P0446low severityPowertrain

EVAP Vent Control Circuit

on 1999 Dodge Ram Van 3.9L V6 · 4WD

What this code means

Malfunction in the EVAP vent control circuit. The vent valve controls airflow to the charcoal canister.

Symptoms

  • Check Engine Light
  • Fuel tank pressure issues
  • Difficulty refueling

Common causes

  • Faulty vent valve
  • Blocked vent filter
  • Wiring issue
  • Spider webs/debris in vent hose

Diagnostic steps

  1. Test vent valve operation
  2. Inspect vent filter
  3. Check wiring
  4. Inspect vent hose for blockage

Repair notes

Replace vent valve or clean vent. Check for debris in vent hose.

Other Powertrain codes on this vehicle

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