03 CHEVY PUGE VALVE

  • Tiny
  • woodyoda
  • 2003 Chevrolet Silverado
  • V8
  • 2WD
  • automatic
  • 204,000 miles

03 chevy silvarado 5.3. Can the evap purge valve cause a lean mixture code? My truck has no egr valve. My guess is the purge valve took it place.

Thursday, December 23rd, 2010 AT 1:47 AM

3 Answers

  • Tiny
  • rasmataz
  • Member

Lean fuel condition could be caused by one of the following below: 1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
6. Oxygen Sensor.

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Thursday, December 23rd, 2010 AT 2:01 AM
  • Tiny
  • woodyoda
  • Member

Thanks for the reply but my truck has no egr valve. Part of my question was does the evap purge valve serve the same purpose?

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Thursday, December 23rd, 2010 AT 2:11 AM
  • Tiny
  • rasmataz
  • Member

Exhaust gas recirculation has nothing to do with fuel vapors

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Thursday, December 23rd, 2010 AT 10:52 AM

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