p0496
Moderate
Cadillac · SUVs
Evaporative Emission Control System High Purge Flow
Quick Answer
Error code P0496 on your Cadillac SUVs means: Evaporative Emission Control System High Purge Flow. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Diagnose with OBD2 scanner
2
Check fuel tank filler cap seal
3
Inspect purge hoses for damage
4
Test purge solenoid with multimeter
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Fuel cap
Purge solenoid
Hoses and clamps
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