LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

SES Light...

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Old 07-29-2004, 06:44 PM
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SES Light...

The Purge Valve went... what does this thing do? They have this thing for plumbing (Which is crap I sell) but unsure if its the same idea/thing for cars. Or what happens to our cars if this thing goes.
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Old 07-29-2004, 09:13 PM
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Re: SES Light...

No one can answer this?
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Old 07-29-2004, 09:25 PM
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Re: SES Light...

Chris basically what it's function to purge vapor fumes from the tank. The PCM tells it to open from time to time and let the engine suck up the vapors from the gas tank.
http://shbox.com/1/evap_sol.jpg

I dont think it will hurt to run without it functioning for a bit, you might get choked by some gas fumes. May be advised to no smoke in the car. Basically get it replace or checked as soon as you can.
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