Ford Super Duty (1999-2016) :: 2005 - How To Improve Mileage
May 19, 2014
I have an '05 F350 single rear-axle w/109k miles. I only recently bought the truck for towing, and haven't had much time to play with it.
It seems that I get about 10-11 mpg on average - I was thinking this was a bit low - anything I can check?
I am normally a pretty quick driver, but, have been taking it easy to get a good read on the mileage, so, the right foot has been "very light".
The truck has a "tick", and I intend on following some of the guides for that, but how to improve the mileage
View 14 Replies
Advertisement
I plan to keep my truck til I die... and want to dial it in. It's getting poor mileage (especially while towing) It make almost no power when cold and I've noticed an overall loss in power. There is no check engine light on and no code but I'm guessing I have injector issues and who knows what else.
I'd like to put a DP Tuner on it but I want to get it running perfect first. Where should I start? What should I service and or replace? Injectors? HPOP? Exhaust back-pressure sensor?
1999 F350 Long Bed Super Duty, 7.3L 4x4, 35" tires, 150k miles
View 7 Replies
My friend has a F250. He was getting terrible mileage and the mechanic he took it to replaced the intake gaskets. After that the mileage went to 12 and he was happy. Now its down to 6-8, just highway. It seems to me the throttle response is terrible compared to my dad's 01 V10. And it sounds terrible. Exhaust manifolds aren't leaking that I see.
I've got AE and have hooked it up, but I'm really not very familiar with these trucks. I don't get any codes that would relate to anything. Had one trans sensor code but that was about it. Key on engine running test didn't say anything.
View 5 Replies
I'm gonna change plugs , hoses, belts and fuel filter on my 08V10. Hoping it works with the mpg.
Anything else I should look for or do? Is there anything I need to know about changing the fuel filter?
View 4 Replies
I have a 00 F250 7.3 4x4 and I am looking to get better mileage out of it since it is now a dedicated work truck for towing. The two options I have in mind I think will work, but just wanted some clarification and if one is even possible.
First I will be taking the lift off and dropping back down to 33 inch tires or so. This should give me a little, but if not it should be easier on the truck for towing.
And this truck mostly see's highway miles, so I was thinking about disengaging the 4wd. I heard 4wd trucks get worse mileage, so this is the one I didn't even know if it was possible. not digging in to the computer and injectors quite yet.
View 7 Replies
I've changed my knock sensor, my o2 sensor, fuel filter, air filter, alternator, and cut out my cat. Still can't figure out why my truck has no power?
View 7 Replies
I have owned a 2003 v10 triton f-250 now for 8 years and when I first got the rig I was getting 11.5 mpg mixed driving. As the years and miles went on the mileage got worse and worse and now I'm lucky to get 4.5 mpg.
View 14 Replies
My 2014 f250 4x4 crew cab with 6.2l gasser only gets about 7.5-8 mpg at 65 mph while pulling my 27' bumper pull travel trailer. I know that thing is basically a wall trapping the air but is there anything I can do to gain a couple mpg more? I can average about 15 mpg at 65 mph without the trailer on the highway.
View 14 Replies
what is the best computer chip for a 2011 F-350 to get better gas mileage?
View 4 Replies
2012 F-250 super cab 4x4, 6.7 and just over 100k on the odometer. He pulls a 20' landscaping trailer with about 3000lbs of gear on a daily basis. He drives the same rounds weekly and the truck is dealer serviced. His trips to the pump used to be every 7 days and are now occurring every 3-4 days. He's down to 10.4 mpg. I usually can pull better mileage with the 6.2 pulling said trailer.
View 10 Replies
I've got a 08 f250 ext cab long box with the 5.4 gas. I know I know 3/4 ton gas. Trucks got NO power at all loaded and unloaded and really bad fuel mileage. Driving like a grandpa in town I'm getting 7mpg on the hwy unloaded I get 9 or 10mpg loaded on the hwy the trucks working way harder than it should and getting 6mpg.... I'm wanting to swap the 5 4 for a 6.0. Reason I saw 6.0 is my buddy's done egr delete. Bulletproof oil cooler head studs and a edge with attitude chip and has great power and reasonable fuel mileage. How hard is it going to be swapping the motors.
View 10 Replies
I have a 2010 F250 with a 5.4 gas. I wondered if a CAI would increase power and gas mileage. I have a friend who put one on his mustang and it worked a lot, especially with power.
View 7 Replies
I just bought a 2002 f150 7700 series and how to improve the gas mileage. i was thinking about putting in a performance chip.
View 11 Replies
I've been told that manually unlocking the front hubs on my '15 F350 dually, might just improve milage. Any concerns about the axle lubrication from being unlocked for extended periods of time? I rarely need the 4WD.
View 9 Replies
Just bought 2005 F350 XLT. Took it home last night and the alarm started going off at 2:30am for no reason. Stumbled looking for keys and it shut off by itself before I could(it sounded like it rearmed as well). At about 5:00am it went off again. We live in a rural area with not much around.
My understanding is that the XLT would be a Ford 'accessory' item. It does not seem to be too sensitive as I jumped on the back bumper to see if it would set it off but it did not.
The only thing I can think of is that last night, I had flicked all four of the Auxilary switched on the dash and forgot to switch them off. I popped the hood and none of those wires appear to be connected to anything.
I can't see why those switches would have anything to do with it but I am grasping at straws here.
View 5 Replies
My 05 superduty is in the shop because it won't shift in or out of 4Hi. Ford garage says I need a new transfer case shift motor, and 4wheel drive module. They said the shift motor was full of oil. I am not really up to speed on how the shift motor works, other than it bolts externally to the transfer case, that's why it confuses me about the shift motor being saturated with oil. My truck has never leaked even a drop of any type oil, ever.
View 6 Replies
I am the first owner of a 2005 F250 SD with the V10 engine. After the engine is up to normal temperature, EVERY TIME I turn my steering wheel hard right or left it dies. It started doing this when it was less than a year old and had 10,000 miles on it. There is no Check Engine light, therefore, every time the Ford service people hook it to their reader there is no error code so, of course, they always tell me there is nothing they can do.
I use the truck to pull a fifth-wheel trailer but these days that usually means a yearly trip ten miles from the storage lot to our RV park site. The total vehicle mileage is 78,000. Less than 5000 of that has been pulling the trailer. It has never been used to haul heavy loads other than the fifth-wheel. I changed the fuel filter less than 2000 miles ago and nothing changed. I have done all of the routine maintenance myself so it has never been late for an oil change or any other routine service.
View 8 Replies
2005 Ford F250 5.4 ... Having problems with ignition switch or bus bar in that circuit being bad?
View 3 Replies
2005 F-250 King Ranch Diesel ... My truck when I got it the 4x4 wouldn't engage. I replace the front inner seals, and the lock outs. Still wouldn't work. Took the shift motor off and freed it up and it worked fin till today. Changed the shift motor and still nothing. This truck has been nothing but problems since I have had it and now this ... Truck is going on the market soon and would sell better if the 4x4 worked ...
View 13 Replies
Ok back at this problem. When I say she won't fill... I mean I can't get more then $0.10 -$0.20 for gas in before the pump shuts off! I'v read all the tips and tricks of holding the gun upside down, tilting the gun up, changing different guns or gas stations, and even pulling the carbon canister filter blowing it out with compressed air... not one of them worked! Yes air passes through the canister but at a restrictive rate.
The only way I can get this truck to fill like every other car I'v filled is to unplug the vent line to carbon canister filter. Then I fill the F250 as fast as I want. Obviously the problem is in the carbon canister (plug up media or faulting canister solenoid) but what is the fix other then buying a new one?
View 9 Replies
My '05 5.4 SD CCLB is running badly. 95k mikes. Plugs done 6 months ago. Acceleration is very sluggish. Sometimes uphill from a stop is almost impossible.
No CEL codes other than an intermittent coolant temp gauge that spikes but resets as soon as I shut down and restart.
When it is bogging the exhaust note changes - almost like there is a blockage. It is almost a booming sound. I would like to test to see if the cat is clogged. I have a vacuum gauge but need to find a vacuum source after the throttle body to do so. If I pull out the O2 sensors ( to allow the exhaust pressure to exit ) would the truck run badly because the O2 sensors were not functioning?
If it turns out that the converter is bad. Can I just eliminate the cats? I do not need emissions testing here in PA because the truck is so heavy. But I don't know if eliminating the cats will cause other problems.
View 5 Replies
