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Evap Purge Solenoid (Will I miss it ? )

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Old 07-27-2017, 02:36 PM
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Default Evap Purge Solenoid (Will I miss it ? )
Of what possible use is the " Purging "of EVAP system ?
Does the PCM use this solenoid to make a periodic test of fuel system vacuum integrity, using manifold sourced vacuum ?
.
If it fell off, would I miss it ?
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Old 07-27-2017, 04:08 PM
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It is used to 'purge' the fuel tank of vaporized fuel to meet HC emissions requirements. It is connected to the manifold so the engine can burn the vapor.
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Old 07-27-2017, 05:33 PM
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I removed it all from my old truck when I went to a fuel cell. there are a couple of codes to tune out. your garage may stink a little more. didn't bother me.
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Old 07-27-2017, 08:31 PM
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Originally Posted by smokeshow
It is used to 'purge' the fuel tank of vaporized fuel to meet HC emissions requirements. It is connected to the manifold so the engine can burn the vapor.
It is used to purge the charcoal canister.
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Old 07-27-2017, 11:47 PM
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Originally Posted by Fullpower
Of what possible use is the " Purging "of EVAP system ?
Does the PCM use this solenoid to make a periodic test of fuel system vacuum integrity, using manifold sourced vacuum ?
.
If it fell off, would I miss it ?
Well, that depends. Do you have sentimental attachments to inanimate objects?
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Old 07-28-2017, 03:46 AM
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Originally Posted by MikeGyver
It is used to purge the charcoal canister.
Which gets saturated by vapor from the fuel tank
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Old 07-28-2017, 04:48 PM
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Is charcoal in the little plastic can, back behind fuel tank, near axle ?
Would that nylon tube be suitable for filling the tank from a smaller auxilliary ( reserve) fuel tank, with it's own submersible fuel pump ?
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Old 07-28-2017, 07:41 PM
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The charcoal canister is about the size of a football. It is in front of the tank on my truck.
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