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12-06-2020, 08:14 PM
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#1
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Senior Member
Join Date: Oct 2018
Location: Out there somewhere
Posts: 1,620
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What the heck is this?
I was rolling around underneath my 2019 Redhawk 25R, (Ford E450), today on a creeper, wrapping my exposed waterlines with heater coil and insulation for our trip up north for the holidays, and I came across this “black box”. It was around 17” long, 5” high and 6” wide. It had, what appeared to be, hoses and wires coming in/out of it. I’m perplexed! It’s on the drivers side, a couple feet in front of the rear axel, mounted to the frame on an angle with a metal boxed bracket.
My SWAG ;
Some type of transformer or cooler? But I did not trace any lines back and forth, to busy trying to not to let the pipes freeze!
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12-06-2020, 08:38 PM
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#2
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Senior Member
Join Date: Jun 2016
Location: Denver
Posts: 4,248
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I think I found the same box last year and posted. Gasoline vapor recirculation was the best guess I received.
__________________
2016 Greyhawk 31FK
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12-06-2020, 08:39 PM
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#3
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Senior Member
Join Date: Oct 2018
Location: Out there somewhere
Posts: 1,620
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Quote:
Originally Posted by pconroy
I think I found the same box last year and posted. Gasoline vapor recirculation was the best guess I received.
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Ahhh, a modern day vapor canister?
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12-06-2020, 08:40 PM
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#4
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Senior Member
Join Date: Oct 2018
Location: Out there somewhere
Posts: 1,620
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Quote:
Originally Posted by Johnynorthland
Ahhh, a modern day vapor canister?
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I wonder if it needs maintenance, like a filter inside? If that’s indeed what it is?
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12-06-2020, 09:52 PM
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#5
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Site Team
Join Date: Apr 2012
Location: Newark, NY
Posts: 15,927
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There's no replaceable filter inside, but if it fails to purge, the solenoid on top is. Usually, they're good for a very long time, and not inexpensive to replace the whole canister. Anywhere from $150 to $200. I've never had to replace one in my (pretty long) life.
__________________
Moderator
Think you're too old to cry or swear out loud...walk into your hitch in the dark.
2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley
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12-07-2020, 03:13 AM
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#6
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Senior Member
Join Date: Oct 2018
Location: Out there somewhere
Posts: 1,620
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Quote:
Originally Posted by JFlightRisk
There's no replaceable filter inside, but if it fails to purge, the solenoid on top is. Usually, they're good for a very long time, and not inexpensive to replace the whole canister. Anywhere from $150 to $200. I've never had to replace one in my (pretty long) life.
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Thanks, I guess there’s a code for a malfunctioning one?
Back in the day, when I was turning wrenches, most people didn’t even know they had a vapor canister & filter. They were usually all clogged. They looked exactly like a coffee can that was painted black. I really feel that’s what they were made of! Lol!
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12-07-2020, 11:56 AM
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#7
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Senior Member
Join Date: Oct 2018
Location: MATTAPOISETT
Posts: 233
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That's your Flux Capacitor so keep your speeds down 
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12-07-2020, 12:42 PM
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#8
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Site Team
Join Date: Apr 2012
Location: Newark, NY
Posts: 15,927
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Quote:
Originally Posted by Johnynorthland
Thanks, I guess there’s a code for a malfunctioning one?
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If it malfunctions to the point that it takes the emissions out of spec, it probably will trigger the "check engine" light, and set a code in the computer.
__________________
Moderator
Think you're too old to cry or swear out loud...walk into your hitch in the dark.
2012 Jay Flight 19RD
2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
2010 Tundra TRD DBL Cab (Traded)
2 new fluffy Corgis, Bayley and Stanley
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12-07-2020, 12:42 PM
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#9
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Senior Member
Join Date: Oct 2018
Location: Out there somewhere
Posts: 1,620
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Quote:
Originally Posted by Berjr
That's your Flux Capacitor so keep your speeds down |
LOL! How many jig-a-watts?
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12-07-2020, 10:29 PM
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#10
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Senior Member
Join Date: Jun 2016
Location: Denver
Posts: 4,248
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Quote:
Originally Posted by johnynorthland
lol! How many jig-a-watts?
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1.21!
Great Scott!
"What the h*ll is a jig-awatt?"
LOL
__________________
2016 Greyhawk 31FK
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12-07-2020, 10:59 PM
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#11
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Senior Member
Join Date: Oct 2018
Location: Out there somewhere
Posts: 1,620
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Quote:
Originally Posted by pconroy
1.21!
Great Scott!
"What the h*ll is a jig-awatt?"
LOL
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Touché!
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12-07-2020, 11:50 PM
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#12
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Senior Member
Join Date: Oct 2017
Location: Oregon Coast
Posts: 3,099
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Quote:
Originally Posted by Berjr
That's your Flux Capacitor so keep your speeds down |
No the Flux Capacity is on the side of the battery tray.... 
__________________
Brian & Jeannie
2018.5 Seneca 37RB with to many mods to list
2015 Jeep JKU Rubicon
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12-12-2020, 01:09 PM
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#13
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Junior Member
Join Date: Nov 2019
Location: Michigan City
Posts: 2
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Quote:
Originally Posted by Johnynorthland
I was rolling around underneath my 2019 Redhawk 25R, (Ford E450), today on a creeper, wrapping my exposed waterlines with heater coil and insulation for our trip up north for the holidays, and I came across this “black box”. It was around 17” long, 5” high and 6” wide. It had, what appeared to be, hoses and wires coming in/out of it. I’m perplexed! It’s on the drivers side, a couple feet in front of the rear axel, mounted to the frame on an angle with a metal boxed bracket.
My SWAG ;
Some type of transformer or cooler? But I did not trace any lines back and forth, to busy trying to not to let the pipes freeze!
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Evap canister for the fuel system
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12-12-2020, 04:53 PM
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#14
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Senior Member
Join Date: Oct 2018
Location: Out there somewhere
Posts: 1,620
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Quote:
Originally Posted by C.Wyse
Evap canister for the fuel system
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No, it’s not, Didn’t you read the above reply’s?! it’s the flux-capacitor! 1.21 Gig-a-watts! Do not touch it! Lol!
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12-12-2020, 07:42 PM
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#15
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Junior Member
Join Date: Jun 2019
Location: Southwest
Posts: 15
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These will usually last the life of the vehicle unless you continually fill your gas tank after the click-off at the fuel pump. That will send liquid fuel into the canister and eventually destroy it. (According to a dealer)
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12-12-2020, 07:43 PM
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#16
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Senior Member
Join Date: Oct 2018
Location: Out there somewhere
Posts: 1,620
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Quote:
Originally Posted by End of the road
These will usually last the life of the vehicle unless you continually fill your gas tank after the click-off at the fuel pump. That will send liquid fuel into the canister and eventually destroy it. (According to a dealer)
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Oh boy! I’m guilty of that! I guess I better stop a bad habit!
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12-12-2020, 07:47 PM
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#17
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Senior Member
Join Date: Oct 2018
Location: Out there somewhere
Posts: 1,620
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In the old days vapor canisters with filters would suck up fumes from the gas tank via a vacuum hose, then send them back to the intake manifold. It was in the engine compartment, so it was higher then the fuel tank but had no electronics connected to it.
If this in fact the same type of device, the low location could suck up gas on an over fill!
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12-12-2020, 08:20 PM
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#18
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Senior Member
Join Date: Aug 2011
Location: Indianapolis
Posts: 371
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It is a charcoal canister for evap. It absorbs gas fumes during shut down. While driving fresh air is drawn through it and drawn into intake to burn off the fumes that were absorbed. This cleans the charcoal to do it all over again. These will set codes if they leak or do not purge properly.
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