Intank Mod complete..w/pics...
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Cargo Master
Joined: Mar 2008
Posts: 2,975
Likes: 19
From: Archdale,N.C.
Intank Mod complete..w/pics...
Hey guys,thought I would share my findings after doing the tank mods,I didn't do a full"How to" write up cause there's some good ones out there,but I wanted to report how it turned out. First of all,I have been having a no power under load issue,it was smooth,but at wot it would plateau,and wouldn't get out of its own way,but no check engine light,.....here's why,
It turned out to be a fuel pressure problem,as shown in this first pic,the screens in the mixing chamber were clogged,
Next...
Also,being as my truck is a late'99,it has the small opening in the filler neck...
so I decided to open it up so I could use the large nozzles at truck stops...
All in all it wasn't too bad of a job,with the help of my wife,daughter and bro-in-law,(son has been under the weather lately),I decided not to do the harpoon mod because I'm not too **** about the last little bit going in,and I also was concerned about cutting the vent too short and have fuel splash out from the high speed pumps,but after doing the tank mod,removing the clogged mixing chambers the power is wayy back
...just thought I would post up a little about it....Phil
It turned out to be a fuel pressure problem,as shown in this first pic,the screens in the mixing chamber were clogged,
Next...
Also,being as my truck is a late'99,it has the small opening in the filler neck...
so I decided to open it up so I could use the large nozzles at truck stops...
All in all it wasn't too bad of a job,with the help of my wife,daughter and bro-in-law,(son has been under the weather lately),I decided not to do the harpoon mod because I'm not too **** about the last little bit going in,and I also was concerned about cutting the vent too short and have fuel splash out from the high speed pumps,but after doing the tank mod,removing the clogged mixing chambers the power is wayy back
...just thought I would post up a little about it....Phil
Fleet Mechanic
Joined: Nov 2008
Posts: 1,573
Likes: 4
From: Seattle
Wow. Your screens were pretty bad. I did my in-tank mods a few weeks ago and was surprised to see nearly spotless screens. Great to get in there anyway to get it all sorted out the right way for that peace of mind. Thanks for posting.
Laughing Gas
Joined: Aug 2008
Posts: 804
Likes: 0
From: Staten Island,hamilton ny
Did mine last week screens weren't bad,but I had no pickup foot.Not in the tank,not on the sending unit.Just gone.Waiting on a dahl 100 filter/separator i got on ebay,and have to drop the tank again to put a stainless brake line in,the original is not looking good.
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Senior User
Joined: Aug 2010
Posts: 299
Likes: 1
From: Anderson SC
Good write-up. Mine looked new inside compaired to your's, YUCK.
Hey guys,thought I would share my findings after doing the tank mods,I didn't do a full"How to" write up cause there's some good ones out there,but I wanted to report how it turned out. First of all,I have been having a no power under load issue,it was smooth,but at wot it would plateau,and wouldn't get out of its own way,but no check engine light,.....here's why,
It turned out to be a fuel pressure problem,as shown in this first pic,the screens in the mixing chamber were clogged,
Next...
Also,being as my truck is a late'99,it has the small opening in the filler neck...
so I decided to open it up so I could use the large nozzles at truck stops...
All in all it wasn't too bad of a job,with the help of my wife,daughter and bro-in-law,(son has been under the weather lately),I decided not to do the harpoon mod because I'm not too **** about the last little bit going in,and I also was concerned about cutting the vent too short and have fuel splash out from the high speed pumps,but after doing the tank mod,removing the clogged mixing chambers the power is wayy back...just thought I would post up a little about it....Phil
It turned out to be a fuel pressure problem,as shown in this first pic,the screens in the mixing chamber were clogged,
Next...
Also,being as my truck is a late'99,it has the small opening in the filler neck...
so I decided to open it up so I could use the large nozzles at truck stops...
All in all it wasn't too bad of a job,with the help of my wife,daughter and bro-in-law,(son has been under the weather lately),I decided not to do the harpoon mod because I'm not too **** about the last little bit going in,and I also was concerned about cutting the vent too short and have fuel splash out from the high speed pumps,but after doing the tank mod,removing the clogged mixing chambers the power is wayy back
...just thought I would post up a little about it....PhilFTE Stories
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Freshman User
Joined: Oct 2007
Posts: 42
Likes: 0
Mine were blocked like yours! I did the intank conversion. On the outside of the tank I put a Dertoit Diesel filter head and a filter, the same one as on my bus. With that mod and a programmer my truck is running better than ever.
Post Fiend
Joined: Sep 2006
Posts: 7,426
Likes: 6
From: Sioux Falls, SD
. What was that you were using to remove to restriction plate in the filler tube?
