black round thing

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Sep 15, 2004 | 11:08 PM

matt77F2504x4

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black round thing

in my 77 f2504x4, 351m, there is a round black plastic ball lookin' thing mounted to the fender near the ignition module, two hoses connected to it. one is from the vac. tree on the rear of the manifold, i cant remember where the other one goes(at work right now), but my question is just what is this thing? i know its for vacuum but i dont know what its function is. please help.

Sep 15, 2004 | 11:22 PM

whalerron

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From: Baltimore

It's a vacuum reservoir and it's used to store vacuum. It allows the truck to have extra vacuum for running the various vacuum motors on your truck. On some of the trucks older than yours, the vacuum reservoir looks like a coffee can.

Sep 16, 2004 | 01:40 AM

thesprocket26

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From: South Central Boise

I thought it was a soup can. I thought about putting a Cambells label on there just for laughs!

Sep 16, 2004 | 02:38 AM

Torque1st

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Don't laugh... I saw a guy that had very neatly made his into a "Folgers" can.

I am not sure how he did it. It was rather cool.

Sep 16, 2004 | 09:06 PM

matt77F2504x4

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do they go bad and where can i get a new one? thanks for the replys!

Sep 16, 2004 | 09:42 PM

Mil1ion

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A vacuum reservoir doesn't look like a ball

It's a big juice can.

Sep 17, 2004 | 12:07 AM

Torque1st

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Many aftermarket vac reservoirs look like a ball. They are available from any parts store.

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Sep 17, 2004 | 07:09 AM

whalerron

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From: Baltimore

Yes, some of the Ford canisters do look like a plastic ball. I had a truck with one in it and it was all factory.

Sep 17, 2004 | 08:07 AM

#10

76supercab2

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There is a res. on my truck that is a black plastic ball.

Sep 17, 2004 | 09:49 AM

#11

beartracks

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From: Albuquerque

*****. I thought of making a bigger can type out of a Foster's "oil can" but the aluminum would probably collapse. My Folgers comes in a plastic can now.