rhooker 9/23/2012

2007 Chevrolet Tahoe LTZ 8Cyl5.3L - Engine

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What is this fault code P0496

Have a check engine light on

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  CVO 9/23/2012

  Trouble Code: P0496
  
  Evaporative Emission (EVAP) System Flow During Non-Purge
  
  Symptoms
  
  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!

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