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I have a check engine light, code #440,evap emission control

 
GM Tech (Cam)'s Avatar
  • Answered by:GM Tech (Cam)
  • Chevy Technician
  • Positive Feedback: 99.1 %
  • Accepted Answers: 13921
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Customer Question

I have a check engine light, code #440,evap emission control system malfunction. Can you tell me what the problem is.

 

Optional Information:
Year : 1996
Make : Chevrolet
Model : cavalier
Engine : 2.2 ltr

Already Tried:
nothing, just borrowed a scanner

Submitted: 1326 days and 13 hours ago.
Category: Chevy
Value: $15
Status: CLOSED
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Expert:  GM Tech (Cam) replied 1326 days and 13 hours ago.

Welcome. This code is a EVAP system performance code and is almost always set because of a loose gas cap or failed gas cap.

Customer replied 1326 days and 13 hours ago.

i tightened the gas cap, the engine light is still on, does it take a while to go off?

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Expert:  GM Tech (Cam) replied 1326 days and 13 hours ago.

The test will have to pass the next test to turn the light off or use the code reader to turn the light off.

Accepted Answer

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Expert:  GM Tech (Cam) replied 1326 days and 13 hours ago.

The test will have to pass the next test to turn the light off or use the code reader to turn the light off.

Expert TypeChevy Technician
Category: Chevy
Pos. Feedback: 99.1 %
Accepts: 13921
Answered: 9/25/2009

Experience: GM Grand Master Technician 2007. 11 years experience.

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