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Old 08-28-2011, 04:34 PM
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Fuel / emmission line

Quick question... today I pulled the cruise control and emmission canistor from my 75 Monte Carlo. It has the emmission line coming from the gas tank up to the engine bay canister. When I pulled the emmissions from 95 Eagle Talon, I was told that I could cap off the line coming from the tank with a vac cap or just have it dump down under the car. I capped it, and never had an issue. Can I do the same with the Monte, or do I need to do something special?

Thanks fellas!

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Old 08-29-2011, 06:23 PM
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If its a vent line it needs a to stay open unless you have switched to a vented gas cap. If you cap it tightly there will be no way to let air into the gas tank as fuel is drawn out, and no place for fuel vapor to expand.

Bruce
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Old 08-29-2011, 09:37 PM
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Quote:
Originally Posted by 75gmck25
If its a vent line it needs a to stay open unless you have switched to a vented gas cap. If you cap it tightly there will be no way to let air into the gas tank as fuel is drawn out, and no place for fuel vapor to expand.

Bruce

Thanks, makes sense. I'm assuming these didn't come standard with a vented cap? And is that something I can get at AutoZone or any parts store? I've never looked for a gas cap before honestly.
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Old 08-30-2011, 04:40 AM
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For a vented cap you will probably have to go back and find one for a vehicle in the late sixties or early seventies. I'm not sure what year they started using the vapor recovery system with the filter canister.

Bruce
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