Ford Super Duty (1999-2016) :: F250 Lost Ability To Accelerate Over 30mph
Apr 21, 2015
I have a 99 F250 5.4l 4x4 Super Duty that just all of a sudden stopped going over 30mph. I was traveling down the highway at 70mph and all of a sudden the truck acted as if it were in neutral and started revving up. i let off the gas and the problem stopped. i went to pass someone and it occurred again. I slowed down to 65mph and a couple minutes later it did it again. I wasn't too far from home so i drove it there. By the time i got around the corner I had the truck in second gear to prevent me from going over 25mph. i allowed the truck to rest and then checked the transmission fluid and everything looked good. There was a slight squeak that had just started and appeared to be coming from the drive shaft. I am mechanically inclined but new to working on vehicles..
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My 2008 250 suddenly lost ability to adjust temp control of heat and A/C. I can adjust the fan speed and the defrost/dash vents/foot heater position controls, but no matter how far I turn the cold/hot dial left or right, the temp is the same. Even in the Max and Norm A/C setting, it's the same temp, which is stuck in the hot range.
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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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I tow 10-15K; 6-10x per month with this truck. I can feel the braking ability starting to drop off so I want to get them done pretty quick. I am more or less happy with OEM performance but if there is a better value, and with my SO starting to haul the horse trailer around.. I wouldn't mind upgrading.
What is worth the money? I'm fresh out of school trying to figure out what the best value is.
Calipers?
Rotors?
Pads?
Brake Lines?
What would provide me with a noticeable improvement without breaking the bank?
Last question, could worn rotors cause vibration/shaking in the steering (primarily when turning ramps) at 50-60mph? Tires are brand new, problem showed up before they were replaced.
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I have an 03 F250, 5.4, 4x4, with aprox. 130k miles. I recently had my exhaust manifolds replaced because 1 literally cracked in half. Ever since the replacement, I'm getting worse gas mileage! Im only getting aprox. 250 miles to a tank when before it was well over 325 (highway)...
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I have a 2010 F250 with the V10 and 42000 miles. Lost*power*while pulling a trailer. Couldn't get over 30 mph. Tried turning back home and lost all*power*and would barely idle. Fuel filter good air filter good. Code P0300 came up. Towed it back to the house and then couldn't even get it to idle. Wouldn't throttle up past about 2800 rpm. Cleaned MAF sensor and nothing. Somewhere during all that P0174 code came up and misfire cylinder 10. Cleared codes and they haven't come back. Now when trying to crank, it barely turns over, yet battery is good. Opened air filter cover after getting it to start one time and there was some light smoke coming out. Also while barely keeping it running for a little bit, the catalytic converter on the driver side was fire hot and the other side I could grab with my hand.
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I purchased an 1999 F250 Super Duty truck last Sept., it ran great all winter, now when I accelerate I notice a whining type noise (that's the only way I can describe it) it only does this during acceleration not @ idle, could this be a bad water pump? However there are no leaks or puddles of anything in my driveway.
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I went to replace a headlight bulb and now I lost electric in the cab. I have no interior lights, no power window or door locks, turn the key on, no crank, no cluster, no radio, no chimes, the upfitter switches work, the mirrors power fold and telescope. Have power to both fuse boxes and battery is fully charged.
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2011 f250 gas 4x4... I bought last year with 65k miles, now has 105k. sometimes when accelerating it slips for a second like a manual would if you jabbed the clutch while pulling. I had the 100k trans flush done. I noticed it a couple times before but more frequent recently. How concerned should i be?
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I have a 1999 ford f250 with a 6.8 liter v 10 engine. At about 40mph the truck will start missing and lacks power to accelerate further. This problem is intermittent. Some days it runs great and others the miss appears. Well I scanned and the code reader said that I had a misfire on cylinder 7. I took a chance and replaced the COP and the boot for that cylinder . Ran great for a day and then the miss came back. Same code again. What else might cause this? Are plugs difficult to change in these engines?
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This happens very often when driving around, at first it was only if i stepped on the accelerator to quickly or braked to hard, the check engine light comes on and the truck idles. Nothing seems to be wrong except when i step on the accelerator nothing happens, it lasts about 5 seconds then the light goes out and im on my way. it has started happening more and more just at random times now. it seems quicken the down time if i pump the accelerator.
Second, it occasionally feels like the transmission slips. I'll be driving and when I accelerate the rpms will go up, then what feels like the tranny slipping and the rpms go down. there is a distinct rocking motion when this happens, but it works if I turn it off and on again, or if i just step on the gas the next few miles it seems to subside.
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While driving up hill at 60mph the truck lost power. Rpm jumped up as to change gears as it hit 55mph. Still losing power until it shut off. I tried to restart and just got a click from the solenoid. No engine codes whatsoever. Battery had 12.1 volts but when turning the key to start in getting 8 volts. Had it towed home. Today I swapped batteries with my other truck and same click noise from solenoid. All lights, radio, ect still work. Where should I start? Alternator, fuses...?? 2008 f250 5.4 ...
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2003 f250 crewcab 6.0 auto 4x4. I all of a sudden started feeling a vibration under the truck near the back when I accelerate and when I let off the gas no other time. No noises or clanking just vibration. I can wiggle the driveshaft inside the carrier bearing do you think that could be it or is it the rear end.
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So after this weekend's hurricane my 2011 f-250 started to making a noise when I accelerate. I don't know if water got in some where. But there's no MIL light coming on.
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Recently, I lost function of brake lights, turn signals, and hazard flashers. All happened at the same time. Some threads discuss flasher relays, short steering column wiring (position of steering wheel), and fuse failures.
I checked #18 fuse and a few others. All had continuity. I assumed my bulbs were all good. My hazard push-pull switch did not feel right. There didn't seem to be engagement. At this point, there was a good chance that the multi-function column switch had failed so I decided to try replacing it. I'm happy to report that this switch was the cause of all the light function failures and now, all is well again.
Removal is done by prying the key lock switch cover off,, removing three 1" Philips head screws that attach the lower column shield to the upper shield. At that point the upper shield can be completely removed. The lower shield was not totally removed because the tilt lever was left on. The switch is attached to the column with two 3/4" Torx 20 fasteners. The upper is easily accessible and the lower fastener can be removed by pulling the lower column shield down so access can be achieved. The two wiring harnesses have a conventional harness lock to depress and the connectors pull outward from the switch. Installation is the reverse of removal, noting the dowel locator and small plastic dowel on the lower shield.
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I have a 2011 F250 with the 6.2 gas engine. I have been having a problem that the dealership says there is nothing they can do and have never heard about.
After the truck sits all night I get in and drive it for 10-15 min. It gets warm and I get out turning it off. When I come back about 15-45 min later I start it up and go to leave. As I pull out and start to accelerate in first gear the truck goes to an idle for about 2-3 seconds. I push the gas pedal and get no response. After a couple of seconds it picks up wherever you have the gas pedal. If you have the pedal to the floor it jumps you forward. This is not putting on any lights and the computer is not throwing any codes. According to the dealership the computer is telling them there is nothing wrong.
This has happened 12 times in the past 6 months. It has happened since I bought the truck. I have just started documenting it as of 6 months ago. It is not something I can make it do on command. After it happens once it doesn't seem to do it again for a week or two. I have 31000 miles on the truck. The dealership has had it for 4 days now and can't seem to get it to happen for them.
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Just bought my first Ford. Its a 2015 F250 Platinum. Im at 1400 miles and Im becoming concerned because when I start the truck for the first time in the day, no matter how long I let it sit and warm up I am noticing that on the first couple of miles of driving I hear a high revving sound as I accelerate and it seems to quick shift during those first few miles.
As I continue to drive the high rev sound just fades away and all engine sounds and shifting are as normal as can be and will remain that way until the truck has been sitting for an extended period of time and is cold. I thought it had something to do with tranny temp but this morning I let the tranny warm up to about 115 deg in neutral before taking off but still had the high rev for the first few miles. I have never owned a ford nor have I ever owned a heavy duty truck, hoping this is normal.
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I have a 2000 f250 crew cab short bed 7.3 on a 6inch bds lift and 37 inch tires. When I accelerate pretty much any load above 1200 rpms I can feel a vibration, kinda feels like it may be coming from the front left but I'm not sure. I have heard that a wheel bearing going out can cause this, would this maybe be what's causing it?
I thought wheel bearing because it kind of sounds like there's a howl when decelerating, probably when accelerating as well but the trucks too loud and I can't hear it. or also have heard motor mount gone bad, I've also heard ujoints but the ujoints were done this summer. the front ujoint is bad but the front driveshaft shouldn't be turning when out of 4x4 and hubs unlocked.
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I purchased a 2000 F250 7.3 4x4 (auto transmission) about 8 months ago. I've noticed recently that when I accelerate there is a slight hesitation like there is slack in the drive line. This does not happen when the truck is moving and I accelerate. There is not audible clunk and the hesitation is not in the motor.
I checked the u-joints and they all feel tight. There is a little slack in transfer case that allows me to turn the drive line slightly back and forth. Is this normal? Should I be planning on a transmission or transfer case rebuild soon?
Update: I was researching the leaf spring isolator pads (mine are warn out or missing) and it sounds like these can cause something similar to what I am experiencing. I am planning on pulling a 28' travel trailer from Colorado to Wisconsin next month and would like to avoid any issues if possible...... Obviously, I know ....
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I drive a 2000 F250 XL Super Cab LB 2WD 7.3 Powerstroke. i drive like a grandpa. No rompin on the accelerator or anything. I was leaving the house got up to about 35mph and the truck lost acceleration. Motor still running fine. I coasted onto a side road. Put it in park, killed it, started it again and same thing. Will not go into drive at all. However will go into reverse just fine and accelerate in reverse. Desperately wanting my favorite means of transportation back!
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I am updating my efforts at diagnosing this.... The antifreeze never seemed to lose any fluid..... The truck lost all oil pressure and after draining the oil, It seemed to have chunks of ice in the pan ! (not anti-freeze then right ? ) The oil was totally slimmed up like a milk shake...... I pulled the oil cooler and took it to a radiator shop who pressure tested it and said no good news>>> No leaks >>> no easy fix..... Is there any way snow or rain water can get past the intake manifold and into the valley? I got a snap-on SVT cooling system pressure tester. The system holds 10 lbs for man hour without loosing a pound, while running under pressure the gauge does not fluctuate (The truck runs GREAT sounds like a nascar). I just did a valve and chain job 2 seasons ago (think I do good work like I give a rip about my own stuff )I put the right stuff gasket sealer around all the water jacket port on the head gasket....... Is there any other way water can get in this thing ? I am going to change the oil again,add sea foam and start driving it...
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