cannister purge valve

[85md]

Anyone replace these? Confusing, number search on rock auto comes to a complete set, 4 metal cylinders (E4ZE9C915AA,) it is not listed for an 85. On the 85 GT, they show individual cylinders, not a complete set. The 4 cylinders have an electrical connection via a harness...

anyone replace them? As a whole set? By the way, what is that black cylinder? What part replaces it? No number on it...

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[burntorange84]

Why are you replacing?

Mine all seal or at least the whole assy is air tight. I believe these are normally closed.
Opposite how carb bowl solenoids operate.

I believe the black cylinder is a check valve if it connects to the engine.
If it's the other end, it is the filter for inlet air; altitude compensation.

The whole asm is quite a piece of work. Huh!

-j

[JACook]

Those have nothing to do with canister purge. Those are altitude compensation solenoids.

[85md]

They are listed on various sites as canister purge valves. I thought they had something to do with AC. Who knows if they still work. I was going to replace during the resto. Question though..as original question... Using the part numbers, for a complete set they don't show up under the 85, but they do show up under another car. Can I use the complete set since it has same part number?