Engine-Codes - GMC - P0449 2007 GMC Yukon

P0449 2007 GMC Yukon Code - Evaporative Emission Vent Valve Solenoid Malfunction

- Code Popularity: 33,826 Views
- Repair Importance Level: 1/3
- Repair Difficulty Level: 3/3
Table of contents
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What are the Possible Causes of the DTC P0449 2007 GMC Yukon?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Vacuum leaks, damaged hoses or improper routing
  • EVAP system
  • Check fuel cap, canister, valves or components
  • Faulty purge or vent solenoids
  • Check connector and wiring
  • Fuel saturated vapor canister
  • Failed EVAP vent solenoid

Code Tech Notes

Check Engine Light Diag EVAP Codes





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How to Fix the DTC P0449 2007 GMC Yukon?

Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the P0449 2007 GMC Yukon code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

When is the Code Detected?

The Engine Control Module (ECM) has determined that a malfunction exists in the electrical circuit for the vent valve/solenoid in the evaporative emission control system.

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

What Does the P0449 2007 GMC Yukon Code Mean?

The Engine Control Module (ECM) monitors the Evaporative Emission System (EVAP) Vent Valve/Solenoid system wiring for opens or shorts. The ECM sets the OBDII code when EVAP Vent Valve/Solenoid is not to factory specifications.

P0449 2007 GMC Yukon Code - Evaporative Emission Vent Valve Solenoid Malfunction

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