Hi FTE,
I was talking to someone who had a similar van as my 1989 e150 with V8 302 5.0L engine. He said these rust out easily and I can remember what it os called or what it does. Pretty sure it's a vacuum part.

what is this, what does it do and how to test to see if it needs replaced ?

Thank you

Matt

 

Its just a sealed can that acts like a vacuum reservoir. you can simply remove it and look for rust or holes.

 

On vans and trucks with a 7.5, it is used for the cruse control but I believe on our vans with small gas engines, it is used for the EGR system. I am not sure on that. I do know when you operate the engine in wide open throttle, your vacuum will drop to 0. As you are climbing steep grades or doing rapid starts, the vacuum drops and that is why they use a vacuum canister. To make up for the loss of engine vacuum during one of the above mentioned situations. If that makes any sense!

D5TZ-9E453-A

Is the part number
https://www.ebay.com/itm/Ford-Vacuum...MAAOSwaPhfCnQZ



But I would think about trying to make one if possible. It looks like thew original canister has a rubber connector inserted in it. If that rubber connector could be removed without damaging it then a person could find a can of similar size and make a new one. Perhaps mount the new can to the old mounting bracket with a couple of dryer hose clamps..
I don't remember seeing many cans in the Kroger like grocery store that would work but perhaps an international food store might have a different selection.
One could also just use a different type of can all together. The can below is a 32oz can for under $3 and the lid under $1. Just cut a hole for the rubber connector, paint it inside and out, seal the cap, and there you got one for under $10
https://www.berlinpackaging.com/1905...saAmBqEALw_wcB

 

I'll have to take it out and see if there are holes. I also have a vacuum pump so i can see if it holds vac.

 

I'd mod a Campbell's Soup can if possible, and mount it right up front on view under the hood....

 

PVC plumbing tubes work well too. Easy to fabricate and modify, pretty much weather proof although you would want to keep it as cool as possible.

IMHO anyway---YMMV.

 

I catch flak for using PVC....It's great stuff for DIY projects.
Using that would be easy as can be!

 

If its your van then who cares what flak you'd receive? Tell 'em go for a long walk off a short pier or something more colorful and descriptive.

 

No, I mean I use PVC pipe for all kinds of projects it wasn't designed for.
My wife posted pics of parts of old PVC projects being used to hold bird netting off vegetable plants.

 

^^^For a lot of light duty uses its a great material that finds its way into all sorts of projects. For a new or experienced DIY'er its easy to work with, tends to be quite weather resistant. It's not easily shaped into curves but if you can adapt your project with angles from 22.5 degrees to 90's then you're in luck with fittings.

I also recall booklets offered for sale some years ago with illustrated plans showing lawn chairs, plant arbors and all sorts of useful cheap and easily disassembled things.

 

One thing to keep in mind (according to my understanding) is that the rubber vacuum connector on the top of the can is not just to connect the two hoses. It also has a vacuum check valve built into it to prevent vacuum loos to the manifold side when the vacuum is low, such as in cases of WOT. One could always buy a vacuum check valve from the parts store for a couple of bucks and splice it into the line from the manifold vacuum side.

 

I have upwards of 4 unused check valves I'll never use---bought them for a project that was soon abandoned as too impractical or useful. Depending on location I could/would send one or so to anyone wanting them--Annaleigh getting first dibs naturally.

They look like this:

 

I had a very rusty reservoir on my '94 F150 and this thread helped.
https://www.ford-trucks.com/forums/1...oir-build.html
I couldn't see any rust on mine until I removed it from the fender.
I reused the existing can valve and 3 inch PVC with glued on caps with some wire to mount it back in the original place.

 

E3SZ-19A566-B ... A/C Vacuum Reservoir Tank & Bracket Assy / Obsolete

Use with factory installed A/C or Hi/Lo Comfort Vent System: 1983 F100/350, Bronco & Econoline from production date 5/83 // 1984/91 F150/350, Bronco & Econoline.

1981/86 Capri // 1981/89 Mustang // 1983/84 LTD/Marquis (Fox body mid-size) w/manual A/C // 1983/89 Thunderbird/Cougar // 1986/88 Taurus/Sable.

 

Great to see you back and I hope you and your family are doing well NumberDummy!
The vacuum reservoir Wcwinans is talking about is different from the one you are talking about.
I may be wrong but I believe the one Wcwinans is showing in his pic is D5TZ-9E4523-A and ties in with the the EGR controls
The E3SZ-19A556-B looks like this one below. and as you mentioned is the A/C Vacuum Reservoir Tank & Bracket Assy