Ford Super Duty (1999-2016) :: F250 - 4R100 Unexpectedly Coasts - Accelerator Pedal Will Not Rev The Engine


Jul 2, 2013

I have a 99 F250 7.3PSD; I upgraded the tranny cooler after an episode of overheating while backing up a hill.

The truck has done well, hauled a few tractors with it, but recently I have noticed something that seems scary. When going downhill, I often relax on the accelerator. Usually there is some passive engine braking as happens with any auto tranny. Recently, the truck just coasts - it is as if you feel the tranny shift into neutral and you just coast, except I didn't shift. While this is happening, the accelerator pedal will not rev the engine. You can put the pedal all the way down -> rpms at about 6-800. No response.

At the bottom of the hill (so far) the engine gets louder. the rpms drop, and the accelerator works again. Every time, so far. But, if IO am going down hill, and want to accelerate to execute a laneg change or something - I can't. AFAIK, everything A-OK after the new tranny cooler. levels, etc.

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Ford Super Duty (1999-2016) :: 2011 F250 - Engine Idles Rough Until Warms Or Accelerator Is Pressed Down

On a cold crank the engine idles rough until it warms or the accelerator is pressed down. Also runs rough going up hills or towing. Check engine light is on and is throwing the code for bank 1 to lean and cat performance below threshold. Cats have been tested, good. Fuel trim tested, good. One mechanic said noth8ng is wrong with it well, there is. 2011 f250 6.2 gas...

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Ford Super Duty (1999-2016) :: 2000 F250 - 4r100 Temperature Keeps Rising

My 2000 f250 7.3 4x4 with a 4r100 tranny. I was towing my boat home and noticed the temperature rising from roughly 140 all the way to 160 over a short distance. As soon as I pulled up to the house I noticed I was dumping my transmission fluid. Went to a mechanic and he fixed the leaking on the transmission by replacing some seals and changed out my rear main seal while the tranny was out.

I also went ahead and replaced the torque converter so I would not have to do it in the future. went to pick up my truck and noticed that on the way home the temperature was still rising. On a normal day here in Texas my tranny temperature was about 125 While towing it would creep up to about 143. Now, just getting home it got up to 180. What could be causing the temp to run this high and keep climbing?

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Ford Super Duty (1999-2016) :: 2001 F250 - 4R100 Cooler Minimum GVW?

What's an acceptable GVW value when one is looking to replace the air to oil cooler for this transmission?

2001 F250 CC SB PSD 7.3 Edge

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Ford Super Duty (1999-2016) :: F250 - 4r100 Transmission - No Forward Gear?

I have a 1999 ford f250 5.4 2 wheel drive i believe its a 4r100 transmission. auto. I have reverse but no forward gears. Ive heard this is a common problem , and on my reverse it has to hit 3000 rpm before it even tries to move and D 1 2 i have nothing only thing i hear is the engine sound changes gets deeper. Do i need a whole new transmission or is this fixable.

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Ford Super Duty (1999-2016) :: 2001 F250 - 4r100 Won't Engage In 4th - Hard Shift Between 1st And 2nd?

I have an 01 f250 with a 4r100. Trans has not been slipping at all and yesterday it started a rough shift between 1st and 2nd. (3-4K Rpms) At the same time 4th gear stopped engaging. Shifts out of 3rd but does not go into 4th. I can hit my od button and it will shift back into 3rd and start pulling. Still no slipping just doesn't want to change 1-2 or engage 4th. I have done a full trans fluid change including new filter and tc. Old fluid looked fine with no metal flakes or garbage in it. So all new fluid still same problem. I was thinking of changing my shift solenoid.

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Ford Super Duty (1999-2016) :: 2000 F250 V10 - 4R100 Making Noises Audible While Driving Especially In Third And OD

Troubleshooting on my wonderful transmission. I have a 2000 F-250 CC Lariat with the V-10. When I start the truck, I hear a high pitch noise. It's like a high pitch whine. It changes frequency as you rev the engine in park. Put the transmission into gear. Either forward or reverse, and the noise is lower pitch. As you accelerate, the noise will change frequency. If the tranny is manually shifted, the noise will go away, and then come back a short time later. The noise is audible while driving especially in third and OD. The truck has 93,000 and is dead reliable except for this. I have been under the truck, and I can tell it's coming from the tranny. Not sure if it's the converter or what.

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Ford Super Duty (1999-2016) :: 2003 F250 4R100 Trans Blowing 10a Fuse When Pull Selector Into First Gear

Whenever I manually pull my gear selector into first gear it blows one of the 10a fuses (not sure which number). I lose all gauges and accelerator pedal. It's about the fourth fuse from the right on the bottom row.

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Ford Super Duty (1999-2016) :: 2004 - Loud Rattle Under The Hood When Lift Off The Accelerator Pedal

I bought a 2004 F250 super duty 4x4 with the 6.0 a couple weeks ago and have a few questions. Hopefully all of these things are normal, but I thought I would ask you experienced drivers.

1) Occasionally while driving when I lift off the accelerator pedal I can hear a sort of loud rattle under the hood. I assume this is the turbo shutting down? Is that normal?

2) 4x4 and locking hubs... I have the 4x4 hi and low switch on the dash. Do I need to also manually lock the hubs to go into 4x4? After reading the manual it seems like I can just turn the dash switch and they should automatically lock, but I'm not sure. The hubs are not marked, but going by the pictures in the manual I think I know which is "lock" and which position is "auto" or off.

3) Front wheels hop at full turn. I expected wheel hop in 4x4 or with the hubs locked, but even in 2WD with the hubs in the auto position the tires still "hop" or knock a bit at sharp turns. Is this normal?

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Ford Super Duty (1999-2016) :: 2002 F250 - Vibration When Letting Off Accelerator

So, I'm slowly but surely eliminating a terribly shaky front end on my 2002 F-250 7.3L 4x4. First was a new carrier joint on the front drive shaft. Didn't work much, but the shop said the darn thing was falling apart. Next thing I did was new wheel bearings and manual hubs. Less vibration for sure. But the last remaining issue, in terms of vibration, is that when I let go of the Accelerator going at any speed above 60 MPH, it makes a horrible horrible noise, and I could feel a vibration. It shakes the whole truck, but I can very noticeably feel it directly in the gas pedal. It's really only an issue during deceleration. What could it be??? Drive shaft U-joints? Torque Converter? Something else in the Front End? Something in the engine even?? I don't exactly have the funds to tackle every possible solution.

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Ford Super Duty (1999-2016) :: F250 Stalls A Little When Press On The Gas Pedal

I have a 1999 f250 that runs and drives great but the only issue I have is when I baby the gas pedal it stalls a little and when I give it more gas it's fine or if. I'm going 50mph then let off gas and then baby the pedal it's stalls a little.

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Ford Super Duty (1999-2016) :: 2003 F250 - Clutch Pedal Not Retracting All The Way

I just bought my first Ford. Its a 2003 F250 SD with 5.4L, 5 speed manual, extended cab, 2WD. The truck is experiencing intermittent problems with the clutch pedal.

If I depress the clutch pedal for a long time, then sometimes it does not retract all the way. It does this, for example, when I am at a traffic light waiting for the next opportunity to make a left hand turn.

The truck runs and operates as it should even when this does happen. The easy response is to place your toes under the clutch pedal and pull it aft to its completely released position.

The master and slave cylinder and the booster spring attached to the clutch pedal assembly have been replaced and this condition still continues.

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Ford Super Duty (1999-2016) :: 2002 F250 Brake Pedal Goes All The Way To The Floor

The other day I got in my truck and started down the driveway when I realized I had no brakes, I slowly backed up and parked it. I haven't driven the truck for approx. 2 weeks and it seemed fine then. The master cylinder is full, there are no signs of leakage from wheel cylinders or lines. Today I unscrewed the left front zert and no fluid came out. My pedal goes all the way to the floor.... Whats going on, and if its a easy fix?

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Ford Super Duty (1999-2016) :: 2004 F250 - No Brake Pedal Sinking

I don't know whats up with my new truck, its a 04 f250 scsb, 4x4, 5.4l with 61k orig miles on it. Truck will stop on a dime, has NO pedal sinking, but it takes about 3/4 of the pedals travel to apply pressure to the pads and have the truck stop, sometimes if I push the pedal down then let up and push it again the pedal wont travel as far, I just flushed the system today, no air in the lines, is there a bleeder on the abs? truck has 4 wheel abs...

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Ford Super Duty (1999-2016) :: F250 - Clutch Pedal Slave Fingers

I have a 99 f250 sd truck that came as a auto and I am changing it to manual. I bought a slave cylinder unit setup and got it put in and as I was installing rod from pedal to slave I must of broke plastic fingers that hold rod. So is them fingers replaceable or must I buy another unit? with no foot on pedal it sticks up close to bottom of dash now. I tried pushing clutch all the way to floor and still rises too high. What can I do????

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Ford Super Duty (1999-2016) :: 2002 F250 Gauges And Pedal Dead

I have a 2002 f250 7.3 with a dead pedal and gauges. This has happened to me once before checked fuse 45 and it was blown. I didn't know that the po used a 30 amp fuse when it should have had a 15 amp. I replaced it with a 30 not knowing. Well coming home the other night it happened again gauges dead and pedal. Checked fuses all were good. Found this site and read about the cause in the shifter. Took that apart and fixed the wire that was broken in half. My question is what else is fried now from having a 30 amp fuse in while it was shorting out since I have no gauges and gas pedal.

2002 f250 banks six gun
banks 4 inch exhaust

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Ford Super Duty (1999-2016) :: 4r100 Won't Decelerate With O/D Off?

My truck lives with a trailer behind it and I always turn overdrive off when under 50 mph and turn it off to slow the truck and trailer down when coming off the interstate. About a month ago when I turned od off to take a exit truck did not decel. Just shifts to 3rd and engine goes to idle even at highway speeds. Truck still tows fine. No trans codes no flashing od light. Trans was rebuilt at 163,000 miles have 183,000 now. I'm stumped to what it could be.

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Ford Super Duty (1999-2016) :: 4R100 Convert From 2wd To 4wd

I have a friend who just burned up his transmission. He needs to get on the road as quickly and cheaply as possible (he uses this truck for work).

We found a local 2wd 4r100 out of a 2000 but it is for a 2wd rig. His pickup is an 2001 F250 7.3. 4x4.

What is involved in setting up the 2wd transmission for the transfer case. We can salvage parts from his old transmission if need be.

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Ford Super Duty (1999-2016) :: F250 - Clutch Pedal Went Straight To The Floor Boards

Pulled out of street this morning and as I was shifting into 3rd my clutch pedal went straight to the floor boards. I was able to keep it in 2nd gear and get it back to my driveway . The pedal will only go straight to floor or goes straight up too the bottom of dash board. It's spring loaded. Am I dealing with a linkage issue?. I had clutch as I pulled out of my driveway and stopped go at the stop sign. Plus I was able to drive it back too my house with the pedal on the floor boards. Where I should look first?

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Ford Super Duty (1999-2016) :: 2003 F250 - Losing Power When Pressing Pedal

I have 03 f250 v10. just replaced the engine and got everything all connected and started it up and it idles great...the problem is that when you press the gas pedal it starts to drive but then it looses power and acts like its missing. cant get it to go 30 mph. While keeping it floored eventually it gets up to 2000 rpm and then starts to pick up speed.

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Ford Super Duty (1999-2016) :: F250 Starts And Runs Well But Every Once In A While Pedal Just Stops Working

I have a 2000 F-250 Diesel that has started acting strangely. It starts and runs well, but every once in a while the peddle just stops working. Might be a second or so and then the RPM will go up. Or you may be running down the road and all of the sudden it just stops acting like it is getting enough fuel. Same thing it might last a second or so. Sometimes it might happen 4-5 times in a row over a few minutes and might not happen again for a day. Truck does not stall when this happens. It just does not go like it should.

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