Call me stupid but I have a coffee can with wires coming out of it on the front passenger side of my engine compartment. I could see it being part of my ignition system but a coffee can? At least it doesn't say folgers... Any takers on anwsering this one?
86 F150 2wd 302 FI- What is it?? Thanks in advance.

 

Well, then, call me stupid too, because I also have one (1986 F250 6.9 Diesel) - it seems to be connected with small hoses, could have to do with pollution - but it's all rusted and certainly not doing whatever it was supposed to do. I would love to remove it but not sure what to do with hoses.....

 

I am not alone.... Would love to know what the heck it is too...

 

Not absolutely sure but I think it has to do with fuel vapors or something like that. Trace the lines out and see where they go and I bet it leads to something to do with fuel.

Bruce

 

Omen, I did some more investigating, check this out:
<https://www.ford-trucks.com/forums/s...hreadid=106799> looks like it may be just a fuel tank breather. Might be worth patching up or replacing it....

 

No, it's the vacuum reservoir for the EGR & smog pump systems. Check your vacuum map.

 

Carbon canister iswhat I was thinking of. Like I said though, I'm not sure.

Bruce

 

Just double-checked with a Ford parts person, definitely a vacumn reservoir. Likely worth replacing ... it's there for a reason.

 

It is a Vacuum canister and it holds a reserve so you don't lose vacuum to control valves when you step on the gas or switch heat/AC controls. If you were in a vehicle and the driver stepped on the gas and the air stopped blowing out of the vents and started to blow out the defrosters? That indicates the vacuum system leaks ro that canister is missing or leaks!

 

Ithought that was a fuel vapor canistor. To capture evaportating fuel so it does not go into the atmospher.

 

The fuel vapors are caught by the carbon canister attached to the frame below & inboard of the battery. Some trucks have 2. Newer trucks have them on top of the rear crossmember over the spare.

The ventilation vacuum reservoir is separate from the "coffee can". It's either a ball on the R wheelwell, or (on '92-96) attached to the side of the evaporator housing that faces the R exhaust manifold, usually behind shiny foil insulation.

 

I agree..It's definately a Vacumn Canister.If it was the breather for the gas tank it would have a few 3/8 inch hoses on it and you would see a filter style element on the bottom of it.Ford used a lot of coffee can look alike cans for vacumn canisters.

 

Thanks alot everyone...
I was wondering what that old thing was for...
Not I just have to call ford for a replacement