tank vent kit
Registered User
Joined: Jun 2006
Posts: 156
Likes: 4
From: Baton Rouge
From what I've seen on the "other" forum -
folks are getting 39-40 gallons into a 34-35
gallon tank. [And - very happy!]
But . . .it's a bit of work for the faster fill -or-
an extra 4 gallons.
If you live in Phoenix, you don't park your truck in
the summer sun after a fill-up.
folks are getting 39-40 gallons into a 34-35
gallon tank. [And - very happy!]
But . . .it's a bit of work for the faster fill -or-
an extra 4 gallons.
If you live in Phoenix, you don't park your truck in
the summer sun after a fill-up.
Registered User
Joined: Oct 2003
Posts: 532
Likes: 0
From: Primm Springs, Tn
It looked like the neck to me...
I can't imagine the engineers would program the light to come on when there was less than a gallon left in the tank... Like I said, I pulled over about 3 miles after the light came on and i filled up with over 30 gallons...
Now are we thinking the tank is actually 40 gallons but fits 34 due to the vent issue?
I can't imagine the engineers would program the light to come on when there was less than a gallon left in the tank... Like I said, I pulled over about 3 miles after the light came on and i filled up with over 30 gallons...
Now are we thinking the tank is actually 40 gallons but fits 34 due to the vent issue?
Registered User
Joined: Jul 2003
Posts: 2,069
Likes: 0
From: Lloydminster, Alberta, Canada
I don't have a problem with mine filling right into the neck. They must have done something different at the factory because it takes me 30 sec to top it right to having fuel sit in the neck.
I thought this was one mod I have to do for sure, but have taken it off my list.
I thought this was one mod I have to do for sure, but have taken it off my list.
Registered User
Joined: Nov 2004
Posts: 5,680
Likes: 2
From: McKinney, TX
Me and some buddies just installed my Vent Tank mod too along with the mod for the hoses for the barbed fitting on top of the tank. This thing works great. (so does my new GDP Walbro system).
Anyway, after completing this mod...........I probably only had about 2 gallons of diesel in my tank. I let it run VERY VERY low, knowing I had a 5 gallon can available. When it was completed, I poured in the 5 gallon can and drove about 12 miles or so to a town and filled up my truck. 36 + gallons to fill up. So it must hold close to 40 gallons on my long bed truck!!!
I filled the fuel right up the brim.
On a different note......our tanks have two plastic barbed fittings for venting on top of the tank. DC just leaves them wide open!! Crud or sand or whatever can get in them and get into your fuel!!!!!!!!! I highly recommend every body put some fuel hose on the fittings and "T" them together and run a line up above your filler neck. I placed a cheapo fuel filter on it too after I went above the filler neck and looped it and dropped it back down a little.
I have to admit, however, my fuel tank was clean as a whistle
with 61k on my truck. I still wonder how something hasn't got in those fittings. But if you don't put some hose on them I would think fuel would run out the top of the tank if you did the Vent tank mod and brought fuel up to the filler neck.
Anyway, after completing this mod...........I probably only had about 2 gallons of diesel in my tank. I let it run VERY VERY low, knowing I had a 5 gallon can available. When it was completed, I poured in the 5 gallon can and drove about 12 miles or so to a town and filled up my truck. 36 + gallons to fill up. So it must hold close to 40 gallons on my long bed truck!!!
I filled the fuel right up the brim.On a different note......our tanks have two plastic barbed fittings for venting on top of the tank. DC just leaves them wide open!! Crud or sand or whatever can get in them and get into your fuel!!!!!!!!! I highly recommend every body put some fuel hose on the fittings and "T" them together and run a line up above your filler neck. I placed a cheapo fuel filter on it too after I went above the filler neck and looped it and dropped it back down a little.
I have to admit, however, my fuel tank was clean as a whistle
with 61k on my truck. I still wonder how something hasn't got in those fittings. But if you don't put some hose on them I would think fuel would run out the top of the tank if you did the Vent tank mod and brought fuel up to the filler neck.
Last edited by TexasCTD; Mar 12, 2007 at 01:28 AM. Reason: typo
Registered User
Joined: Oct 2003
Posts: 532
Likes: 0
From: Primm Springs, Tn
I've read many posts on the supposedly open barbs on the top of the tank and the suggestions about putting hoses on 'em, etc. I've had Dave Kelley's vent kit on my '04 for years. I have never had any problems with junk getting into the tank nor have I ever seen anything come out of those barbs. If they are open, I'd think that when I fill my tank until fuel is standing in the neck in the summer and the fuel expands, fuel would be forced out those barbs. That has never happened to me.
Registered User
Joined: Dec 2005
Posts: 2,627
Likes: 0
From: DFW, TX
Me and some buddies just installed my Vent Tank mod too along with the mod for the hoses for the barbed fitting on top of the tank. This thing works great. (so does my new GDP Walbro system).
Anyway, after completing this mod...........I probably only had about 2 gallons of diesel in my tank. I let it run VERY VERY low, knowing I had a 5 gallon can available. When it was completed, I poured in the 5 gallon can and drove about 12 miles or so to a town and filled up my truck. 36 + gallons to fill up. So it must hold close to 40 gallons on my long bed truck!!! I filled the fuel right up the brim.
On a different note......our tanks have two plastic barbed fittings for venting on top of the tank. DC just leaves them wide open!! Crud or sand or whatever can get in them and get into your fuel!!!!!!!!! I highly recommend every body put some fuel hose on the fittings and "T" them together and run a line up above your filler neck. I placed a cheapo fuel filter on it too after I went above the filler neck and looped it and dropped it back down a little.
I have to admit, however, my fuel tank was clean as a whistle with 61k on my truck. I still wonder how something hasn't got in those fittings. But if you don't put some hose on them I would think fuel would run out the top of the tank if you did the Vent tank mod and brought fuel up to the filler neck.
Anyway, after completing this mod...........I probably only had about 2 gallons of diesel in my tank. I let it run VERY VERY low, knowing I had a 5 gallon can available. When it was completed, I poured in the 5 gallon can and drove about 12 miles or so to a town and filled up my truck. 36 + gallons to fill up. So it must hold close to 40 gallons on my long bed truck!!!
I filled the fuel right up the brim.On a different note......our tanks have two plastic barbed fittings for venting on top of the tank. DC just leaves them wide open!! Crud or sand or whatever can get in them and get into your fuel!!!!!!!!! I highly recommend every body put some fuel hose on the fittings and "T" them together and run a line up above your filler neck. I placed a cheapo fuel filter on it too after I went above the filler neck and looped it and dropped it back down a little.
I have to admit, however, my fuel tank was clean as a whistle
with 61k on my truck. I still wonder how something hasn't got in those fittings. But if you don't put some hose on them I would think fuel would run out the top of the tank if you did the Vent tank mod and brought fuel up to the filler neck.Off hand, do you happen to remember what size the hose was for the two little barbs? I just got my fuel tank vent kit from David Kelly, and I wanted to take care of it at the same time...
Im guessing you also used diesel rated hose too right, for the two small vents?
Registered User
Joined: Jan 2004
Posts: 405
Likes: 3
From: Milwaukee,WI
Hey stacked,I did mine. The hose is 1/4" I.D. with a tee fitting about 6-7' total and an inline fuel filter.The filter is 5/16" but I heated up my 1/4" hose and slipped it right on. You can do a search on here,its refered to as the roll over vent mod.Oh I used 1/4" fuel line
Registered User
Joined: Dec 2005
Posts: 2,627
Likes: 0
From: DFW, TX
Hey stacked,I did mine. The hose is 1/4" I.D. with a tee fitting about 6-7' total and an inline fuel filter.The filter is 5/16" but I heated up my 1/4" hose and slipped it right on. You can do a search on here,its refered to as the roll over vent mod.Oh I used 1/4" fuel line
I wanted to knock out two birds with one stone while im under there...
Registered User
Joined: Nov 2004
Posts: 5,680
Likes: 2
From: McKinney, TX
https://www.dieseltruckresource.com/...d.php?t=117209
Stacked, here is another thread about it that I used for gathering parts etc. Pet did a write up with some pics. But since I did the Vent Tank Mod too, I ran the fuel hose up to the filler neck, looped it, tied it up...and pointed the hose with the filter back down. (instead of running it into the frame rail like he suggested)
I ran 1/4'' from the barbed fittings.....into a T...and then ran 5/16'' from the T up to the filler neck/filter.
Stacked, here is another thread about it that I used for gathering parts etc. Pet did a write up with some pics. But since I did the Vent Tank Mod too, I ran the fuel hose up to the filler neck, looped it, tied it up...and pointed the hose with the filter back down. (instead of running it into the frame rail like he suggested)
I ran 1/4'' from the barbed fittings.....into a T...and then ran 5/16'' from the T up to the filler neck/filter.
Registered User
Joined: Dec 2005
Posts: 2,627
Likes: 0
From: DFW, TX
https://www.dieseltruckresource.com/...d.php?t=117209
Stacked, here is another thread about it that I used for gathering parts etc. Pet did a write up with some pics. But since I did the Vent Tank Mod too, I ran the fuel hose up to the filler neck, looped it, tied it up...and pointed the hose with the filter back down. (instead of running it into the frame rail like he suggested)
I ran 1/4'' from the barbed fittings.....into a T...and then ran 5/16'' from the T up to the filler neck/filter.
Stacked, here is another thread about it that I used for gathering parts etc. Pet did a write up with some pics. But since I did the Vent Tank Mod too, I ran the fuel hose up to the filler neck, looped it, tied it up...and pointed the hose with the filter back down. (instead of running it into the frame rail like he suggested)
I ran 1/4'' from the barbed fittings.....into a T...and then ran 5/16'' from the T up to the filler neck/filter.
Thread Starter
Registered User
Joined: Dec 2004
Posts: 167
Likes: 0
From: North Texas
Glad to see you got that done. I knew you'd love it.
https://www.dieseltruckresource.com/...d.php?t=117209
Stacked, here is another thread about it that I used for gathering parts etc. Pet did a write up with some pics. But since I did the Vent Tank Mod too, I ran the fuel hose up to the filler neck, looped it, tied it up...and pointed the hose with the filter back down. (instead of running it into the frame rail like he suggested)
I ran 1/4'' from the barbed fittings.....into a T...and then ran 5/16'' from the T up to the filler neck/filter.
Stacked, here is another thread about it that I used for gathering parts etc. Pet did a write up with some pics. But since I did the Vent Tank Mod too, I ran the fuel hose up to the filler neck, looped it, tied it up...and pointed the hose with the filter back down. (instead of running it into the frame rail like he suggested)
I ran 1/4'' from the barbed fittings.....into a T...and then ran 5/16'' from the T up to the filler neck/filter.
Registered User
Joined: Nov 2004
Posts: 5,680
Likes: 2
From: McKinney, TX
I do!! I have driven about 6000 miles or so since I did it. It sure is nice to go like almost 400 miles now before my tank even hits the half way mark on the fuel gauge!!! Really helps lengthen that cruising range. And now every time I fill up, I know I am adding the exact amount back in that I burned since I can see the fuel in the filler neck.
Registered User
Joined: Dec 2006
Posts: 35
Likes: 0
Just installed one on my '07 Friday. Took a little over an hour. It had about 2 gallons in it and I put in 37 gallons to fill it up. It still took a couple clicks at the pump to get the foam settled, but it filled all the way into the neck and stayed there. Call me happy!
Registered User
Joined: Oct 2003
Posts: 549
Likes: 1
From: Adirondacks of New York and Daytona Beach FL.
Same Here
I don't have a problem with mine filling right into the neck. They must have done something different at the factory because it takes me 30 sec to top it right to having fuel sit in the neck.
I thought this was one mod I have to do for sure, but have taken it off my list.
I thought this was one mod I have to do for sure, but have taken it off my list.