P0449low severityPowertrain
EVAP Vent Valve/Solenoid Circuit
on 2016 GMC Sierra 1500 5.3L V8 · 4WD
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
- Test solenoid resistance
- Check wiring
- Command solenoid with scan tool
Repair notes
Replace vent solenoid.
Other Powertrain codes on this vehicle
P0001
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P0002
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P0003
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P0004
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P0010
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P0011
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P0012
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P0013
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P0014
Exhaust Camshaft Position Timing Over-Advanced Bank 1
P0015
Exhaust Camshaft Position Timing Over-Retarded Bank 1