» View Question

rhooker 9/23/2012

2007 Chevrolet Tahoe LTZ 8 Cyl 5.3L


What is this fault code P0496

Have a check engine light on

1 Answer


CVO 9/23/2012

Trouble Code: P0496

Evaporative Emission (EVAP) System Flow During Non-Purge


Symptoms of a P0496 DTC will include MIL illumination, and most likely no other noticeable symptoms. Some may experience a hard start / crank condition. In some cases the engine may run rich which may not detected, but can cause damage long-term (think: catalytic converter damage).

Potential Causes

Potential causes of a P0496 EVAP code include:

Faulty purge or vent solenoid/valve
Plugged EVAP canister
Failed EVAP / fuel pressure sensor
Poor electrical connection
Short electrical circuit condition
(Hyundai, Isuzu)
Faulty canister purge valve
Blocked vapor canister
Faulty vent solenoid
Leaking EVAP system hose (Hyundai)
Faulty purge flow sensor (Kia, Mazda)
Possible Solutions

The most common fix for this DTC is to replace the purge solenoid valve. However, be sure to do a proper diagnosis before replacing parts!


Answer this question

( characters left)

Follow Question

what's this?