On the road experience.
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Elder User
Joined: Sep 2012
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From: Smokey Mountains TN
On the road experience.
I'm on my first road trip this weekend after doing all the work on my truck.
I drove 6 1/2 hrs, pulling an empty 6x12 uhual open trailer. I had the tuner in the mild street/ pull position and sure could feel that empty trailer behind me... My fuel mpg was just under 12 mpg going a constant 65, turning 2400 rpm
. Who ever said, you can get 18 mpg???
since my rear tank is out of service, I had to stop every 150 Mls for fuel.
One of the issues I had, is that my transmission leaks on the rear output shaft.. Got some oil spray on the front of the trailer.
Another issue I notice is, that every now and then I loose for several hrs the power below 2000rpm.. Turbo ain't kicking in and fuel pressure is good... No smoke under wot... Then after a while I got full torque again... Something sure is wired..
I drove 6 1/2 hrs, pulling an empty 6x12 uhual open trailer. I had the tuner in the mild street/ pull position and sure could feel that empty trailer behind me... My fuel mpg was just under 12 mpg going a constant 65, turning 2400 rpm
. Who ever said, you can get 18 mpg???since my rear tank is out of service, I had to stop every 150 Mls for fuel.
One of the issues I had, is that my transmission leaks on the rear output shaft.. Got some oil spray on the front of the trailer.
Another issue I notice is, that every now and then I loose for several hrs the power below 2000rpm.. Turbo ain't kicking in and fuel pressure is good... No smoke under wot... Then after a while I got full torque again... Something sure is wired..
Hotshot
Joined: Feb 2009
Posts: 10,408
Likes: 75
From: Plankinton, SD
You sure shouldn't be feeling that little trailer back there, definitely lacking power somewhere. No cel pops on?
You don't have any boost/exhaust leaks do ya? Does it miss at all or just lack power at times?
You don't have any boost/exhaust leaks do ya? Does it miss at all or just lack power at times?
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Elder User
Joined: Sep 2012
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From: Smokey Mountains TN
No scan gauge... No exhaust leak and no intake leak. No miss.. . Cel is not on either. Sur e is wired, as sometimes I take off from the gas station and I have a lot of power.. Then I shut the truck off, start it again and missing power... Could there be in issue with the ipr on the back of the hpop ?
Once I get back. Home,I believe I will order me the ae enhance package for ford
Once I get back. Home,I believe I will order me the ae enhance package for ford
Hotshot
Joined: Feb 2009
Posts: 10,408
Likes: 75
From: Plankinton, SD
I agree Todd. I made good power with leaky uppipes too. I however did notice a loss of power with the leaky manifold gasket. But that would be constant, not every now and then. I was just throwing that out there to see.
If you are going to get ae, you should get it figured out easier.
If you are going to get ae, you should get it figured out easier.
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Elder User
Joined: Sep 2012
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From: Smokey Mountains TN
I was debating getting it before I leave.. But the boss told me, I should wait till I get back,in case we need additional funds on the travel
But I do have a thought, and wonder what you guys think: I have issues with my switching valve not switching right, so I leave it on the front tank. I had power loss before, but also low fuel pressure, which happened to be a clogged pickup tube due to the coating inside the tank separating. I installed a screen on the pickup tube.. I wonder if I just have insufficient amount of fuel due to stuff around the screen.. Even though my pressure is steady.
But I do have a thought, and wonder what you guys think: I have issues with my switching valve not switching right, so I leave it on the front tank. I had power loss before, but also low fuel pressure, which happened to be a clogged pickup tube due to the coating inside the tank separating. I installed a screen on the pickup tube.. I wonder if I just have insufficient amount of fuel due to stuff around the screen.. Even though my pressure is steady.
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Elder User
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From: Smokey Mountains TN
One more question here.. I guess I lost a little bit of tranny fluid... Since it is not easy to fill, does a little low level in the zf hurt on travel, since I won't be shifting, but for about 4 times to stop and get fuel?
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From: Wyoming
It wouldnt surprise me to some level if that tank selector valve could have a hand in it, as when I was first reading your post, my original thought was up pipes, then fuel delivery, such as filter, then IPR.
My thought, something fuel delivery is going on! I would start checking it out, run a pressure gauge, check filter, and go from there!
My thought, something fuel delivery is going on! I would start checking it out, run a pressure gauge, check filter, and go from there!
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Elder User
Joined: Sep 2012
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From: Smokey Mountains TN
thanks for all the info.. I think i found my problem: the plug fir the fuel bowl harness, which has the connector for the ipr had a bad connection.. i put a ty-rap around to force it together and the truck ran fine.. except the fuel milage though.
i will replace that plug propably tomorrow. I did make it home without any further problems
i will replace that plug propably tomorrow. I did make it home without any further problems
Hotshot
Joined: Dec 2006
Posts: 14,069
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From: Melbourne, Ky
I'm guessing you have a 5 speed. I get 12.5 to 13.5mpg's in my 97 automatic with 4:53 gears, or the gears are close to that. I don't remember exactly what they are. I know it weighs around 14,000lbs, and is as aerodynamic as a brick. I get better mileage at 60mph. Pulling that box behind you really adds the wind drag big time. Above 45mph and the wind drag increases drastically for every 5mph or so. I also have the Mini Swamps in my 97 too. Runs really strong even with the chip removed. I have a tune called TravisF350 on the chip that actually gets me the best mileage. But it's too hot for me to run all the time. I usually just run it when I'm in Indiana on flat ground. It's also hard on the stock E40D tranny!
