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2000 CADILLAC DTS

4.6L V8 NorthstarFWDAUTOMATICgas
Repairs0Labor471Torque2461Fluid6DTC721Battery0Maintenance0Recalls0
P0449low severityPowertrain

EVAP Vent Valve/Solenoid Circuit

on 2000 Cadillac DTS 4.6L V8 Northstar · FWD

What this code means

Malfunction in the EVAP vent solenoid circuit.

Symptoms

  • Check Engine Light

Common causes

  • Faulty vent solenoid
  • Wiring damage
  • Corroded connector

Diagnostic steps

  1. Test solenoid resistance
  2. Check wiring
  3. Command solenoid with scan tool

Repair notes

Replace vent solenoid.

Other Powertrain codes on this vehicle

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