Ford F-150 (2004-2008) :: Trans Slipping From 40 M/hr To 65 M/hr?
Nov 20, 2011
Feels like my transmission is slipping from 40m/hr to 65m/hr. But only when I am at a constant speed and not when i am accelerating. only happens when I am at approximately 1400rpms and while in overdrive. Does not happen in any other gear just overdrive.
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Here's my transmission problem. 2007 f150 crew lariat 4x4 with a 5.4
When my driving conditions force me to cruise at the 28-30 MPH range my transmission often hunts for an upshift, like a slipping gear hunt then it hits in firm. It must be from 2nd to 3rd gear I'm thinking. It doesn't occur at all if i am accelerating through this gear or past this shift point. under normal acceleration through and past this speed or shift point it is as smooth as can be.
I often drive some flat but winding dirt roads out in a forest area near my deer camp and it seems this is where I settle into a speed of 28-30 mph for several miles at a time. This is where it happens, the transmission seems to begin to shift but seems to slip or hunt for that next gear then it hits in fairly firmly.
Truck has 83k on it....
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Transmission won't go into drive until I give it gas and then hard shift between 1&2 then a little slipping when I get on it in higher speeds , fluid and filter brand new, threw a speed sensor so code I replaced with new but no change, don't know what to do and can't find out why speed sensor code went off changed but didn't fix? Can't drive truck!!!
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I have a 2004 4x4 with 305K on it. Never changed the transmission fluid and I think its slipping a bit.
Beentold that I should not change the fluid because the new fluid would somehow damage something and to just not worry about it.
So OK to change the fluid or not?
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Let me first say that my knowledge about vehicles is nearly non existent. Yesterday I was stopped at a light on a hill. When I pulled away up the hill it felt like the tranny was slipping real bad. I coasted into a gas station and stopped. I gave it the once over look around to see if I could see anything unusual. All looked ok, so I wondered if maybe it wasn't all the way into gear or something.
I limped it home only 2 miles and it was seemingly normal although I was real gentle and it was all flat or downhill. Later that night I drove it around the block and it was shuddering and banging and seemed to be slipping again. My question is doesn't the transmission usually go over time, or does it fail suddenly like this. Could it be something else? And lastly what does a rebuild cost. Truck is 06 FX4 54000 miles 3.73 gears. Edge Evolution on level 2.
I tow a Trailer a few times a year 7000 lbs fully loaded, if I do need a new tranny should I replace to a different gear.
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2005 F-150 5.4L RWD
I purchased this truck about 2 years ago, with about 70k miles. Previous owner had transmission work done, but I'm not sure if it was a rebuild, new, or refurbished. About 8 months ago I experienced hesitation, and frequent stalling when coming to a stop. Pulled the engine codes, and they said it was throttle body related. I thoroughly cleaned the throttle body assembly inside, with the battery disconnected, went through the idle re-learn process, and it drove fine for a few days. Took it into the shop, and they did a tune up and replaced several plugs and coils. Since then, it's run great.
A couple of weeks ago, a whining/buzzing noise was coming from the engine compartment, getting much louder as RPMs increased. Got the oil changed a week ago (it was overdue), and the tech at the quick lube shop said the noise was from the drive pulley(s), and that they should be replaced.
Today, I was waiting for the parking lot at work to open, sitting in park. I quickly switched to Drive, and the trans didn't seem to engage (Auto Trans). The engine revved, I let off the gas, and it then engaged and I scooted into a parking spot. After work, on the way home, there were similar issues at the beginning of the drive, mainly when slowing down/stopping/down-shifting. Most of the drive was on hwy, and I managed to get by okay going around 60 mph, with some spikes in RPM's occasionally when I would accelerate (no Tach, so I'm going by sound). Half way home on the high way, the O/D Off light starting quickly blinking, and the odometer screen read "TRANS FAULT". I managed to make it off of the highway, and stopped at the first red light, where the engine stalled. Turned it back on, put it in gear, and it drove fine for about 5-10 minutes on back roads, with no lights/notices. The last 2 miles home I experienced a lot of slipping, and high revs. When I backed into my parking spot, there was noticeable leaking... Trans fluid was leaking fairly quickly. I hadn't noticed any trans fluid leaking before today... I went out to run the engine and take a short trip to warm up the fluid to get a reading, but it wouldn't engage in Forward or Reverse at all. Pulled the dipstick out, while "cold", and there was nothing... I'm assuming that it's drained drastically, and is extremely low or gone.
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The reverse gear in my F150 has started slipping all of a sudden, with no noise or notice. All forwards gears are functioning properly. If I rev up the motor in reverse it seems like it wants to go, but I get the wrench light/safe mode and it now has a P0720 code. I've done some research and replaced the Output Speed Sensor and replaced the tansmission fuild and filter. I cleared the codes once before I changed the sensor, and now my reader indicated the the P0720 is "Pending". Do I have to keep trying to use reverse? Drive it more? Plus it looked like after driving it today that I might have overfilled the transmission.
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Ok so when I come to a full stop my truck doesn't want to shift right when I take off where do I need to start looking
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I bought a 2004 heritage V6 Transmission was bad my father in law rebuilt it (he is a retired Ford Transmission guy) in drive it will not shift out of low if you take off in 2nd it will shift out of low on a rare occasion the OD light on the shifter will start blinking and it will shift fine?
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2008 5.4L ...I started a thread before concerning my tranny shuddering while in OD. It did it before and after a tranny rebuild. That's when I learned of the common problem of a bad coil pack not allowing trans to lock out into OD. Yesterday I took the truck to a shop to have it scanned. I was hoping to find out which cylinder is the problem. No fault codes were found. Now the mechanic thinks its the tranny, and the tranny guy(who has had the truck twice) says its a coil pack. I can change it if I can figure out which one it is. Do I have anymore options left to find the bad coil pack, or am I left with changing them all.
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I have a 1997 F150 4 x 4 with the 5.4 overdrive transmission. When I accelerate from a stop I can feel the slip of the transmission until I reach exactly 35 miles an hour. Above 35 seems to be normal and have plenty of torque.
The funny thing about this is I have had a 2001 Windstar same 35 miles an hour. I have also owned a 1997 Ford Explorer with this exact same issue. Three different motor and trans combination that will not lock up until you reach 35 miles an hour.
The truck has 213,000 I have replaced all coils fuel filters catalytic converter and torque converter. Have exterior tranny cooler. engine runs good and strong. And no code I have a reader.
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So ever since I picked up the truck from getting the springs swapped out the tranny has started to slip more and more. It's about at the point now where it does it at the 1-2 and 2-3 gear change every time unless I give it a little throttle so it shifts harder. It's just the normal shifting pause and then the slight jerk when the next gear starts. Time to a new torque converter, or am I looking at getting my whole thing rebuilt? If it's the converter I can give that a shot myself but if I have to have it rebuilt it's going to have to wait until January or February.
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2002 Escape XLS 2.0L 4-cyl 5MT FWD. Slipping Clutch.
I've read here n there that the Escape clutch is a poor design & others have reported that a clutch repair doesn't solve their shuddering problem. After putting off the job for a while, I'd like to replace the clutch.
Here's a topic from here : Manual Transmission shudder / fill & drain access?
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I have a 99 Ranger 3.0L automatic, ext cab, 2 wheel drive. Door sticker show code "T" which I looked up as the 4R44E. The trans seems to be slipping in 1st and 2nd. Thought it was "reared shudder", from a "limited slip" differential but mine is not limited slip. just the regular 8.8 with 373 gears.
Wanting to know what if any options I have for buying a new / rebuilt tranny? I've seen where depending upon the year and motor, Ranger can have 4r44e, 4r55e, 5r55e, etc.
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I have a 1989 tioga 460ford and the trans appears to be slipping when i get around 50mph. The engine revs up but it won't go more than 50. The engine again revs up but there does not feel like the power of the engine is being transferred to the trans. the coach runs fine up until i try to go beyond 50. I have 34000 miles on the rig. Some one suggested that I check the catalytic converter. what else should i look for?
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I am finally getting around to changing the trans fluid on my 05 f150 5.4 4wd xlt auto, what is the torque value for the trans pan bolts.
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I was driving my 7.3 down the road and it started acting like the trans was slipping, it revved up and tried kicking down a couple times and when I slowed down and went to speed back up it just had no power coming through the trans to the wheels it just revved. I put it in neutral and it idled up for about 5 seconds. I put it in park n shut it down. I fired it back up after looking everything over and it moved about half mile down the road and no power to the wheels again. The trans is full of fluid, is there a sensor that could of went bad or just the torque converter or the entire thing shot? Only owned my truck 6 months has a trans and motor swap already from previous owner. 180k on current motor n Trans. 382k on my truck. t6 4" turbo back banks exhaust only mods I know of.
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My wife's car, '06 explorer 4.0, experienced trans. slipping issues last year. The trans was replaced under extended warranty. Now it's doing the same thing. Warranty expired. The dealer claims they can't find a problem. It does it when you slow down at a light and then accelerate without stopping, or going around a corner and accelerating. It shifts but requires more rpm to move. Almost like I am dragging a piano or something.
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I have a 2004 f150 4x4 with a 5.4. i have been leaking some fluid for a few months now but when i check oil and transmission both fluid levels are fine. I crawled under and it looks like something is leaking near engine and trans meeting and fluid looks reddish making me think its trans. now this week I developed a whining sound when truck moves. Again I rechecked oil and trans fluid levels and are all good. i was going to check transfer case but it is way behind leak and dry.
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So my truck is making a kind of a clunk noise in the trans area does it between 30-50mph does it more often when cruise control is on but still does it from time to time when it's off. What it could be?
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In the "Old days" I could pull the one-and-only coil wire and trigger the starter motor to rotate the converter so the plug was at the bottom. How do ya do this with COP engines so the engine does not start?
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