7.3 running bad
Logistics Pro
Joined: Mar 2004
Posts: 4,221
Likes: 3
Originally Posted by dtippins
.......with the chip it gets 11 mph with out the chip it gets 18mpg but it is so weak I can't stand to drive it so Im going to hopefuklly fix that today
Hand-calculating by your mileage you traveled divided by gallons it took is the only way.
I'd be surprised if you're seeing that big of a mileage drop. If your driving habits stay the same between programmer and stock, you may actually see a very slight gain, but with the extra power people tend to be more heavy-footed. 
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Originally Posted by go_speed
thanks for moveing this thread for me.
wow I need to learn so many things about my truck. it's sorta like trying to read a text message from my children . ccp. abc xyz
but thanks for all the help. I will get a cup of coffee an start reading to learning the codes
wow I need to learn so many things about my truck. it's sorta like trying to read a text message from my children . ccp. abc xyz
but thanks for all the help. I will get a cup of coffee an start reading to learning the codes
Here's a place for you to start with the truck terminology. https://www.ford-trucks.com/forums/1...finitions.html
If in doubt don't be afraid to just ask "What does that mean?" Someone will reply back and explain it to you.
Senior User
Joined: May 2004
Posts: 400
Likes: 0
just a dumb question for the original poster. On my truck, I used to have an open-element style air filter. I could always hear the turbo stop when I'd get out of the truck. I later put on an AIS, and no more turbo noise at exit.
Just a thought; wondering if you've changed ur intake at some point.
Just a thought; wondering if you've changed ur intake at some point.
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New User
Joined: Nov 2007
Posts: 21
Likes: 0
From: lafayette La
no I haven't done nothing to the truck yet. chipped an removed the muf an cat.
fuel isn't the real issue. the way it pulls it's self around is. yes i do have a heavy foot. I run the freeways at 85. in town just above the speed limit.
the truck just seems slugish an felt as if it was haven a hard time pulling a load an the mileage was the frosting on the cake. it's time to make it run agin. thows fellas in them chevys.
I realy like my truck an just want to get another 200000 miles out of it.
I'm getting ready to start my 1954 F100 project. every thing seems to run fine except the powerstrock. It runs fair. much better than stock but not like it did. thanks every one
fuel isn't the real issue. the way it pulls it's self around is. yes i do have a heavy foot. I run the freeways at 85. in town just above the speed limit.
the truck just seems slugish an felt as if it was haven a hard time pulling a load an the mileage was the frosting on the cake. it's time to make it run agin. thows fellas in them chevys.
I realy like my truck an just want to get another 200000 miles out of it.
I'm getting ready to start my 1954 F100 project. every thing seems to run fine except the powerstrock. It runs fair. much better than stock but not like it did. thanks every one
Posting Guru
Joined: Dec 2007
Posts: 1,377
Likes: 3
From: Oklahoma
Definitely check and make sure your boots are tight and not leaking. Also look at your up pipes for any soot on them, they attach at the back of the engine, under the turbo ped. You might try a flashlight or drop light to get a good look. Mine are leaking a little and already have black soot on them just below where they connect. There are a couple of different recommendations for the repair. Some folks replace the donuts with new ones from Carquest. I don't remember the part #, but they say these are better because they are a little softer and smash to form a better seal. Others recommend new up pipes that utilize a gasket instead of donuts. You also might check your turbo wheel for any damage to the blades. Just some thoughts. Hope this helps.
Senior User
Joined: Feb 2005
Posts: 416
Likes: 0
From: Mid Michigan
Just a thought but possibly the UVc ( under valve cover connector). Mine would run great then the engine light wold come on, then off and would run bad and it did this for a week till I checked this connector. Might be something else to try.
Junior User
Joined: Dec 2007
Posts: 66
Likes: 0
mpg
I don't have a milage calculator I do all mine by checking gallons used by the milage and I was checking it on a trip down to my mother in laws house with the cruise set and I was seeing that kind of milage loss. I know its some of the sensors that are messing up the milage but Im fixing them one at a time
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gungho351
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
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Jun 4, 2007 09:02 AM
