Originally Posted by MATREDGT
The Hutch Mod is great. Follow Guzzle's write-up and you shouldn't have a problem or order the ITP pre-pump kit w/filter (like i did) and follow those instructions. It seemed to quiet the motor down a little bit but there was a big difference in how the motor runs. I can tell that the better setup (not letting air in the lines) has made a big difference. Now this may not be due to the Hutch Mod, but after I did mine I did have an increase of about 1 to 1.2 mpg. Some people have claimed this, but some have not. It may just depend on how badly the connections and parts you replace were leaking air into the fuel lines.
While you are also in there you can do the Harpoon mod which will make it so you can fill your tank up without the nozzle clicking off 10 times because of the diesel foaming. Do a search to get a good write up or if you read through the link posted above for Guzzle's Hutch mod he talks about it there too. It is free to do, provided you have something to cut the plastic tubes in the tank with.
I have also read that a lot of people that have done the Harpoon mod have had a problem with the nozzle not clicking off soon enough and diesel spills out of the spout before it shuts off. When I did mine I left the vent tube protruding into the tank about 1" and I cut the fill tube pipe as close to the tank as I could which was about 1/2" or so.
you guys know that by searching the "member repair write ups" section, you can learn alot, there are several good things in there.
here is my harpoon mod write up, also do not cut both tubes, only the fuel filler tube.