p0496
Easy Fix
Chevrolet · SUVs
Evaporative Emission (EVAP) System High Purge Flow
Quick Answer
Error code P0496 on your Chevrolet SUVs means: Evaporative Emission (EVAP) System High Purge Flow. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
CL14636CL14606Blazer LT 2024Blazer Premier 2024Blazer RS 2024Equinox Activ 2024Equinox LT 2024Equinox RS 2024Suburban High Country 2024Suburban LS 2024Suburban LT 2024Suburban Premier 2024Suburban RST 2024Tahoe High Country 2024Tahoe LS 2024Tahoe LT 2024Tahoe Premier 2024Tahoe RST 2024Tahoe Z71 2024Trailblazer Activ 2024Trailblazer LS 2024Trailblazer LT 2024Trailblazer RS 2024Traverse LS 2024Traverse LT 2024Traverse Premier 2024Traverse RS 2024Traverse Z71 2024Trax Activ 2024Trax LS 2024Trax LT 2024Trax RS 2024CL14526CL14506CK10906CK10706CL14456CL14806CL14416
Likely Causes
How to Fix It
1
Locate the EVAP purge valve on or near the intake manifold
2
With the engine off, disconnect the purge valve and blow through it; it should not pass air
3
Inspect all EVAP hoses between the purge valve and charcoal canister for cracks
4
Test the purge valve solenoid electrically and verify it opens and closes on command
5
Replace the purge valve if it fails the seal or electrical tests
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
EVAP purge solenoid valve
EVAP hoses
Hose clamps
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