Ford Super Duty (1999-2016) :: F250 5.4L - How To Increase Engine Power
May 28, 2016
What are my options for increasing the engine power in my truck? I'd like to see somewhere between 350-450 hp on the rear wheels. Unlike you guys in USA I can't just drop my truck of at any garage and pay them to do this for me as i live in northern Norway and there ar as good as none who work or knows much about american trucks here. I also wonder what power levels can the original transmission handle whiteout reinforcement?
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1999 F350 SD ... Yesterday when goosin it to get on the highway my rig threw up a code quickly and engine temp started to increase. Once temp got in the red, oil pressure got a little figgity. The code was for the ICP(p1212), so I cleaned the plug and made sure coolant and oil were topped. This morning she ran barely over normal temp (stock gauge). This afternoon same thing as yesterday but without the code. When I let off of the accelerator temp goes down. I just got married so I have little funds to throw at a shop.
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I just bought this truck for a pretty good price it has 225000 on it the engine was over heating. The guy put new rad, new water pump, new fan clutch, and a new heater core with thermostat. The truck still over heated so I pulled the thermostat to see what happens and the truck over heats even faster. All this happens while driving regardless of ac on or off. I got a motor and put a motor in it with all new pump and thermostat. I put new coolant in and flush radiator. I cut a hole in the cat to see if the cat was plugged for the truck seems to have low power and sputters. With in 1mile the truck over heated dumping all the coolant out of the system which the truck did as well before. Will the diesel rad work in this truck I have a diesel one I can put in since its a bigger rad?
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Wanted to get feedback if it is a good idea to change the oil the very first time in a new truck sooner to ensure no engine breakin contaminates get in the engine?
I have a new F250 6.2 that I have put 1300 miles on in the last month. First 1k break in, last 300 miles towing 8k. Was thinking of doing the first change at 1500 miles and then every 5000 miles after at that point.
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My 2007 f250 power stroke 6.0. My A/C comp went out. After replacing it I was told that my fan clutch is bad and will cause the new ac to go out. My engine is not running hot. The fan still spins for a while after engine is turned off.
1) Could it have not been re installed correctly?
2) How do I know my Fan Clutch is bad?
3) How do I replace it myself?
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We have a 99 F250 193,000 miles with a 5.4 and a 5 speed manual with 3:73 gears and we tow a camper that weighs empty 6700 lbs. I knew something was off when we were bringing it home, there was no real umph in the motor. It wouldn't get past 55 in 5th gear on the express way, and just felt as though it was gonna blow up. Its a new to us truck and on paper it should tow this easily. We have a couple of trips under our belt now, and nothing has really changed. With gear and goodies I dont think we're even talking 7500 lbs. I like the truck, and don't really want to get rid of it. With in reason what should I expect to be able to tow and what can I do to better the situation.
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Ok I have a 99 f250sd v10 with 180k miles. Original owner and have most work my self over the years. Son took the truck to fill it up, started fine ,filled it up and now will not start. It has power but will not crank. Tries to but no good. I was thinking battery died. New battery same results. Sort of tried to start but not turning over. With the new battery i tried several times then nothing. No power at all. No lights, nothing. So I put the old battery back in and still no power at all. I'm thinking the starter is toast and my repeated attempts to start that I pulled too many amps and blew a master fuse? It stilling in a parking lot until tonight when I can tow it home. Where to start.
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Its a 2001 f250 with a 5,4. I just recently put a new shot block in it, the short block is a svt short block for an 01 lightning. every thing off old motor went on new svt block just fine, and it drop in just fine. only it will not warm up i let it run for 45 min the other day and on the gauge it would not come past the c. and i do believe the gauge to be accurate because the heat in the cab sucks and the top rad hose is just warm, not as hot as it should be. I've already put 2 new thermostats in it so I don't believe that to be the issue either.
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2001 f250 5.4L v8. Engine temp seems really low. The gauge is reading barely above the cold in normal range. The heater is only blowing out 75 degree air at the warmest. It gets to its normal temperature with in 15 minutes even when its real cold out. I live in Minnesota and its been a really cold winter so having hot heat would be nice. I just bought this truck at the beginning of the winter. Whats going on?
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Ok I rebuilt the engine in my f250 5.4 3v. Timing set cam phasers and oil control valves are new. The problem I'm having that just started after 5k miles on a new engine is all of a sudden i will start getting misfires 1st time it happened said #6 i changed coil same problem came back this time said multiple misfires now I'm just getting #4. When the misfires happen if i hold throttle where it is it will misfire as long as i hold it there if I let off gas then apply right back misfires stop for several miles then will happen again. I have changed fuel pump and fuel pump driver module same problem exist.
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I have a 2005 F250 with a5.4 engine. When the engine is cold runs fine. When engine gets hot the vehicle shuts down.
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I have a 2004 F250 Super duty that had a battery die (I left the keys in the ignition switched on overnight) and after jumping the battery off the vehicle started up but now I have no power door lock or window functions. Any reason a dead battery issue might affect the power locks and windows?
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My 1999 F250 V10 has started to lose power off and on. It will run fine then when I stop at a light or sign, then when I take off it runs like I pulling something heavy. If I stop again it goes back to normal sometimes. 161000 miles. No check engine light is on. Motor idles perfect and sounds great. I don't know anything about motors...
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I have an 05 F-250 with the 5.4 liter motor, 4" lift, 35" tires 4x4. I have not had any problems with the truck and have 110,000 miles on it. the only thing I even did to it was replace an alternator. Recently it seems to have lost power.
I use the truck mainly for hauling my smaller horse trailer which is roughly 7500 fully loaded but most times i haul it at about 5500lbs.
I also have a 2003 7.3 which we pull at 20,000lbs no problem
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Cruise won't power up. Tried entering diagnostics but did not get any flashes. By-passed switch on master cylinder, did not make any difference. Horn honks. Brake lights work correctly.
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One of my work trucks is a 99 F-250 5.4L. Up until recently it's been running strong. Then one day it's like someone flipped a switch, and now it runs like it's losing power.
Symptoms: a quick short stumble when you first hit the accelerator. While driving, it takes the entire pedal to accelerate. Even with the pedal to the floor, it won't keep up with traffic. Driving uphill, it will barely maintain 40 mph.
I've checked everything I can think of. Fluids and filters are all good. Battery and alternator are good. There are no trouble codes. I have Autoenginuity with the Ford Bundle, and the truck passes every diagnostic test I throw at it.
There's no smoke. It still idles pretty smooth, although there is a slight and very quick random shudder in the idle that has started at the same time it started losing power.
Transmission is good. The last thing I tried was to change the fuel filter, but that made zero difference. Quick question, does the tank on the 5.4L trucks have a pickup screen like the diesels? If so, I might try blowing some compressed air through the fuel line and see if it dislodges anything.
So that's where I'm at. It has no power, yet I can't find a single thing wrong with it.
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6.4 diesel 2008 F250.... I have been having lots of trouble with low power and sputtering of this diesel truck . It almost seems like a fuel filter but I changed them out 2 times now and the same thing keeps happening . It has been a very cold winter here and if there was any water - it would freeze.
If I am going down the highway and it starts to sputter. I put transmission into neutral and shut motor off with key. Start it up and it's good for less than a minute or two and it's back to sputtering.
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I have a 99 F-250SD with 5.4 automatic that just all of a sudden started running unevenly at random times, but frequently. There is a pending code P0300 Random/multiple cylinder misfire. I have had the truck for 12 years and it has run perfectly for the last 10+ years and just started this problem, it did not come on slowly but all of a sudden. I have seen on here that some people say that 90% of the time a PO300 is a bad cop. I replaced the plugs 60k miles ago when I had a bad coil on plug 10 years ago that did not set any codes, but this seems very different that more than one cylinder seems affected, like maybe 2 or more cylinders are not firing momentarily.
There is a big power loss momentarily while it happens, but doesn't happen for long. The fuel pressure stays pretty constant (30 psi at rail) even while it happens, and it can affect the idle as well as while accelerating or cruising at speed. I cant imagine more than one coil on plug would be skipping at the same times or fail at the exact same time, but maybe having only one bad cop could cause this much hesitation? Does the code that indicates random/multiple cylinder misfire rule out only one bad cop? It just seems like running on 7 cylinders wouldn't be so noticeable. Could a sticking egr valve cause unevenness at idle and higher rpms and set a P0300 code? Would checking manifold vacuum be they way to see if egr valve is not working correctly.
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I have a 99 f250 sd with v10 that has no power. Will crank, idle and die sometimes. Getting codes p0351 - p0355. No power when driving.
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I just bought a 2005 Ford F-250 Super Duty 4WD. My problem is, my power port, lighter and diagnostic connection don't work. Also, my radio powers up but no sound (which may just be loose speaker wires). My question is, if my fuses are not blown, where should I start looking next to troubleshoot this problem?
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My wife and I recently retired. We are going to buy a used F250 PowerStroke and a tag-a-long camper that weights around 5000lbs. I have heard to stay away from the 6.0 diesel. Looking for info as to the good and bad points on the 6.0. and 7.3.
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