Ford Super Duty (1999-2016) :: 1994 F250 - Transmission Shifts Hard With No Warning Lights?
Mar 24, 2016
I have a 1994 F-250 XLT heavy duty model. No warning lights are on. A few times a month my transmission will start shifting hard, kicking into the next gear. The odd thing is, if I reset the computer it stops. Shifts smooth as butter. The fluid is a vibrant red and the fluid looks great like it's new. What is going on? I'm getting tired of having this happen. The truck has 108,500 miles on it.
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I have a 2011 F250 with the 6.2 34000 miles and my Transmission shifts hard between 2-3 and 4-5 took it to the Ford dealer and they said it is the shift solenoids are bad but it is cause from the Powertrain Control Module and its not covered by the warranty because it is part of the emission system.
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I have 99 f350 v10 4x4 and trans shifts great under light rpms but 2-3 shifts very hard. At wide open from about 35 mph it will shift down and take off like a bullet but wont shift until I lift my foot and then it bangs hard from 2-3. All other gears are smooth. I did some searching and have found some threads saying it could be an accumulator spring that is broken? Truck has 115,000 miles on it. love the truck but want to fix this before it does some damage.
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I have a 2002 ford f250 with the 7.3l diesel. I recently installed a ts performance chip. On my pcm. And after i first tried all the different stages I didn't like how my transmission was shifting hard. So I contacted the manufacturer and he told me they could reprogram the chip for smoother shifting. So I removed the pcm and removed the chip. But when I went to reinstall the pcm I bent one of the pins on the pcm some how.
So I took it back out and straightened the pin with pliers . i reinstalled it back in the truck. Only to find when I reattached the battery cable I have no power to anything ignition ,horn, lights,Cigarette lighter etc. So my question is if the pcm is bad, or not contacting properly due to the pin being messed up. would that have anything to do with the lights and horn and all that? I suspect its the gem bsm or Vsm. Whichever one my truck has. But really not sure because everything worked fine just 20 min b4.
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I've had the truck for almost a year. It had 2900mi when I bought it. It's got 18k on it now. A few weeks ago I stopped to get the mail and the dash started going crazy throwing every warning you could think of. I got back in and all the codes were gone. I figured it was a fluke until last week. It did it again. I let it run for a few minutes and decided to turn it off. It wouldn't start back up right away. After about 20min, it started and I drove straight to the dealer.
They had it for 2 days, cleared all the codes and couldn't replicate it. They said the codes were U codes and not real codes?? The next morning it did the same thing again. I took it back and after 3 days, they said they could only think that my AMP Powersteps were the cause. They disconnected the steps and wanted to keep it for a few more days. I said no and picked it back up. It made it 2 days and I got the codes again.
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2012 F-250 6.2 gas 4X4 SC/SB: when I run WOT, or near that, from a slow speed, I hear a short "hiss" between the 1-2, 2-3, and i think 3-4 shifts. I can also feel that the engine eases up quite a bit during the shift, and it is kind of a slow, soft shift. It has about 2,000 miles on it. I bought it in March 2013 as a leftover (great price!). The door sticker says it was manufactured in 4/2012, so it sat on the lot for quite a while before i bought it. But i don't remember it doing this when it was newer (~500 miles).
With the lite weight of this configuration (it is an XL so it isn't even carrying around 4 speakers ha ha), and me rarely carrying a very heavy load (yet) or towing anything, I rarely have to step on it very much in normal driving... it hardly ever gets above 2,500 rpm unless I am just running it faster for fun.
The hiss and slow shift happen at any transmission temperature. Of course, it never has been above the left side of the "gear" pic on the temp gauge, where it always is after full warm-up. Well, I'm hoping it is just shifting soft like this because it has "learned" my lite-foot driving style (even when I'm in a hurry of course the engine rarely has to work very hard).
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I recently purchased a 2011 F-350 w/6.7 diesel. When I first start it & let it run say 30 seconds and take off it shifts fine from 1 to 2 but when it goes from 2-3 it hangs there a second and then finally shifts into 3rd hard. 3rd to 4th is ok but 4-5 again is a hard shift and from 5 to 6 is OK. It will do this for a while like through the neighborhood and down the road 10 miles then it is fine. Shifts beautifully when warmed up.
My local Ford dealer has a guy that is supposed to be very knowledgeable with Super Duty trucks. I have had it to him twice and he says this is normal. All shift hard until the transmission is up to operating temperature. Says the engine is very powerful and until everything is up to temperature this will happen. If so then it would be normal to let it sit and run for a while before you take off in the morning. I am getting ready to hook the truck up to my 33' camper and go on our first camping season with the trailer/truck combination and if I need to leave it sit and warm up I will.
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I recently purchased a 04 f250 with the 6.0l powerstroke. I drove it for about 3 weeks now, Ive put my trailer behind it with small loads and just today tried to use the tow/haul button. When you go to pull out the tranny never shifts from first gear?? Its pulls and runs fine until you push the buttan and no shifting........
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And if I have to sift through one more "My O/D light is blinking."
I have a 2000 F350 7.3 4x4 SRW CC with several issues but right now I'd like to address the one plaguing my transmission. If I crank the truck and take off it will not shift out of first gear, well it might but it'll take a while, be at high rpms, and a hard shift, throwing the 1-2 shift error code. Now if I disable O/D with the button on the shifter and take off it shifts through all gears fine. I can drive it normally and if I hit the highway, when I'm up to speed I can enable O/D, it shifts into O/D and I can keep on trucking. When I stop I disable O/D and take off normally again. After about 10 minutes of driving and several start/stops even with O/D disabled it will eventually throw the 1-2 shift error code and give me a harder shift into 2nd and I guess enters its limp mode but is still drivable. This appears to be the only code dealing with the transmission.
Due to the fact that it shifts fine with O/D disabled, doesn't skip any gears, and I can manually shift it through 1-2-D I'm guessing it's not the mechanical diode I've heard so much about but an electrical issue. Before I bought this truck it had been abused, at one point the front driveshaft came loose and ripped the wiring harness going to the TRS in half. They soldered it back together but it still looks a little rough. I figure this is a good place to start. What readings I should get at the TRS? Sensor side and plug side. I have the AE enhanced ford bundle and a good DVM. If the TRS can't cause an issue like this where do I go from here, shift solenoid?
TLDR Version
2000 F350 7.3 4x4 SRW CC
Won't shift out of first with O/D enabled.
Shifts fine with O/D disabled.
Can manually shift through all gears.
Eventually throws 1-2 shift error code.
TRS/TRS Harness has been damaged in the past.
Appears to be an electrical issue with the transmission.
Can the TRS cause an issue like this?
How do I test the TRS/Harness?
If not the TRS what could it be, shift solenoid?
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Driving up a slight hill unloaded yesterday at about 40mph constant pedal pressure the truck shifts into neutral...at least that's what it feels like. Revs go up and no power. When I take my foot off the pedal the transmission catches and drives fine. There is no bucking or hard shifting, just that slipping. What it could be? This problem arose suddenly....never had any problems prior. It is not an issue that has gotten worse over time...
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We have a 1994 350 ford dually. the brake light and the abs light came on and it has no brakes. replaced the master cylinder ... still no brakes. what next?
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My 1997 F250, 4x4, 460, auto has started dying with no warning while driving from 5 to 30 miles. Changed the fuel filter and the fuse under the hood. Where to start.
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My '01 f250 7.3 has gotten hard to start. It seems to maybe be due to cooler weather, but not always. I have been told that there is some sort of valve in the fuel tank that could possibly cause this when the fuel gets around a 1/4 tank or so. But, it's doing it at any fuel level. But it doesn't do it all the time. I do notice it more in cooler weather. Anyway, when I try to crank it, I'll let the "wait to start" light go off and then wait a bit more. I'll turn it over and it almost as if the batteries are weak.
I'll stop and give it a few seconds and turn it again and it will normally start. But sometimes I'll do this 5 or 6 times and it will finally fire. But the more I have to try, it's like fuel builds in the cylinders and it smoke like a coal train for a minute or so. Almost like gas motor that has been flooded. But the smoke burns off and it runs like a top. I was thinking the batteries may be weak , but sometimes the starter will spin the motor with no trouble at all. I'm at a loss. Is it possible for fuel to drain from the system causing it to have to reprime itself? Here lately the smoking has me concerned even though it clears up.
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I own a 2011 f-250 superduty, and have been having a problem with the steering, it goes from normal to lost of assist. Real hard to steer and dangerous. Then it will go away for a month, then start again. Some one on this site told me to flush the system which I did and it was fine for a month. A friend at a local ford dealer told me they had contamination in the system and I had to replace pump, reservoir, and flush system again....
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I have a 1997 f-250 heavy duty with the 7.3 I have been having problems with very aggressive and hard shifting. While it is acting up the overdrive light on the shifter blinks. This problem goes away and it might be good for a month or so, But it always comes back. I have had it to a professional trans tech, He replaced a part on the side of the tranny. I thought it was fixed, But now it is acting up again.
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I have a 1999 f250 sd with the 7.3. I'm not sure what is going on with my pickup. When I turn to the right i can turn with one finger, but when I turn left i have to put some muscle into it. Power steering fluid is full. I raised the front end and it turns both ways easy. My ball joints feel fine, there is no tire shake when i have it off the ground. My tie rods feel fine also, nice and tight. I was thinking about replacing the steering sector to see if thats the issue but wanted to get a second opinion first.
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On my way into work this morning, all the warning lights came on, along with the check engine wrench. My display was showing that I was overheating and the gauges stopped working. While this was happening, there was no noticeable change in the way the truck was performing.
After about a minute or two, the warning lights shut off and the gauges worked again as normal. The gauges did not show that the truck was overheating at that time. Another few minutes went by and the same thing happened again. Then the gauges came on and the warning lights shut off for the second time, it did not happen again for my 10 minute ride to work. On my way home this evening, this did not happen again.
The truck seems to be charging and the battery seems to holding a large as well. The truck is a 2015 F350 XLT 6.2 with about 9700 miles on it.
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I am getting this check gas cap warning on the dash. I checked the cap, looks ok... Should I disconnect the battery for a minutes.. and see if it comes back?
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The tranny is shifting really hard between 2 and 3 if I feather the throttle it can be a little less of a jolt but still enough none the less iv never done a filter and fluid change as I just got it it has 235000 miles 99 v10 super duty 4x4....
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Recently I have had an issue with my auto which was just rebuilt. About 500 kays after i picked it up it shifts dangerously hard and immediately into all gears at around 20-40 mph, converter also locks immediately. The speed sensor in the box was replaced with the rebuild but I'm having it replaced again this thursday just in case.
Just for the record I cooked it on the beach a while back, the speed sensor was replaced with the rebuild as it was doing the above, the od light also flashes when this occurs, before and after the rebuild.
Prior to cooking it never had an issue.
What could be causing it? I'm starting to worry it cant be fixed, have done a google and tried a couple of things mentioned. Code says wiring issue associated with speed sensor in box.
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When braking the truck shakes terribly, enough to toss a drink out of the cup holder almost. Sometimes there is a slight feeling in the peddle but not always. The shudder feels like it is timed with each revolution of the wheels.
It developed from a perfectly stopping truck over the course of maybe a month. I don't drive the truck that much either.
Things I have checked:
1, all u-joints, they all look and feel good, no play or slop in them
2, air pressure in all tires, even rotated them, no effect
3, brakes-front and back all looked good but I went ahead and replaced front pads and rotors, cleaned caliper pins, zero effect.
4, shudder exists whether in gear and slowing or in neutral, 2wd and 4wd
What the heck else is there to check? My first thought was, front brakes/warped rotors, but after pulling them apart there was so much life left on the rotors and pads and replacing all that with new did nothing! Could bad back brakes cause this much of a shudder? They look fine as well.
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