Evaporation Controil System
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
Nice car, I have one just like it (71' red vert). The Evap systm is the carbon canister mounted on the left fender well that absorbs the fuel vapors from the carb and tank. When you start the engine, the canister is purged via a vacuum line going to the intake manifold. If your 71' is stock, then you have it.
Thread Starter
Instructor
Joined: Dec 2006
Posts: 132
Likes: 0
From: Virginia Beach, VA
Thanks, Duke94.
I learn new stuff about my car all the time
On the left side I have like a box shaped container, and a cylinder shaped one underneith it - I guess that's the stuff we're talking about. They are both connected with tubes to the intake, carb etc.
Do I need to do any maintenance on this?
I learn new stuff about my car all the time
On the left side I have like a box shaped container, and a cylinder shaped one underneith it - I guess that's the stuff we're talking about. They are both connected with tubes to the intake, carb etc.
Do I need to do any maintenance on this?
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
The box shaped one is the vacuum reservoir for the headlights, wiper door, heater controls etc. The cylinder shaped one is the carbon canister for the evap system. I think the owners manual might say to replace the carbon canister, but few do.
Thread Starter
Instructor
Joined: Dec 2006
Posts: 132
Likes: 0
From: Virginia Beach, VA
Thanks again, Duke94.
I bought this sticker, which headline is TO REDUCE FUEL VAPOR LOSSES THIS VEHICLE IS EQUIPPED WITH THE GM EVAPORATION CONTROL SYSTEM.
I've been looking all over in the Assembly Manual, the Service Manual and two restauration manuals but I can't find anything about where to put it in the engine compartment. The part number of the sticker is 3983361.
Any ideas?
I bought this sticker, which headline is TO REDUCE FUEL VAPOR LOSSES THIS VEHICLE IS EQUIPPED WITH THE GM EVAPORATION CONTROL SYSTEM.
I've been looking all over in the Assembly Manual, the Service Manual and two restauration manuals but I can't find anything about where to put it in the engine compartment. The part number of the sticker is 3983361.
Any ideas?
Le Mans Master
Joined: Mar 2001
Posts: 6,640
Likes: 287
From: Ann Arbor Michigan
I just looked in my 53-72 GM Parts Catalog and your part number 3983361 is not listed. Must be for something else or something newer than 72'.
Found this site which lists it.
http://www.nastyz28.com/camaro/em-label.html
If your sticker looks like the example, I think it goes on the cowel below the Engine tuneup sticker. Or that's where I put mine. Page 14 of the AIM has the stickers.
Found this site which lists it.
http://www.nastyz28.com/camaro/em-label.html
If your sticker looks like the example, I think it goes on the cowel below the Engine tuneup sticker. Or that's where I put mine. Page 14 of the AIM has the stickers.
Last edited by Duke94; Apr 3, 2008 at 07:46 PM.
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