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2000 Cadillac DeVille Question: check engine light on code po443 evap emission system

 

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flchipper, Marion, MA, August 22, 2010, 10:00
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check engine light on code po443 evap emission system purge vent soleniod circuit condition. what does this mean.

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    August 22, 2010, 20:46
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     Master

    It means that the Vent Solenoid near the Fuel Tank is not closing when the the EVAP System self test is run by the Computer. I have replaced several of these on GM vehicles.

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    flchipper, August 30, 2010, 14:22
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    thanks. does the gas tank have to be dropped to access or is it under rear seat?

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  • Answer #2

    Visitor, January 12, 2011, 06:30

    WE GATE A CODE NUMBER - PO443

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