Ford F-150 - 1997-2003 :: Shake / Shudder When Accelerating Around 45 - 55 MPH
May 29, 2012
My trucks been doing something weird. When accelerating around 45-55 mph, a couple seconds after it shifts to 3rd, it does a weird type off shake/shudder. Feels like I hit a small bump in the road. Also when coming out of a cruise to accelerate, it will Make a very violent clunk and then speed up. I'm thinking it's a problem with my torque converter but my mechanic says transmission and my buddy says rear end lol. I dropped the pan and there was some shavings but nothing huge and it was the first time it was ever dropped. After 90k miles.
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I have a early 99 7.3l that seem to cut out and shudder while accelerating at low rpm's below 2000 once I am above 2000 rpm it seems to go away similar to a dirty carburetor thinking injector problem...
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I have a 2001 f150 and when i go around 55 mph it starts to jerk/shake. and sometimes it randomly idles high like the rpm will go up a bit and go down. I also noticed the exhaust manifolds leak sometimes and I don't know if that's what is making it shake. from what i was told it could be the coil packs, spark plugs, or fuel filter but my check engine light is not on!
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So I just bought a 2004 Ex 4x4 4wd with only 50k from a dealer. While test driving the truck would shake/shudder when braking at 50-70 getting worse if you were going faster, as a condition of the sale they said they would look into it. They did and said it was the tires?? They balanced and rotated and did and alignment. Are they correct? the tires are BFG AT 33x12.5x16.5 on aftermarket rims.
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I purchased a 2003 F-150 Screw a few months back. Within a week I noticed a noise that sounded like a bad ujoint. To it to a shop and they confirmed it. They told me they replaced both. I only drive about 4 miles to work around 40 mph. Friday I had to go out of town and this was the trucks 1st road trip. I noticed that around 55 the truck feels fine. At 65 there is a shake / vibration. At 75 it is very noticeable. At 1st I though front end, but after a few hour I noticed the feeling can be felt in the seat of my pants type of thing. Or my foot on the kicker panel. Truck has 27K on it.
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I have a 2000 Ford Excursion with multiple transmission symptoms, so here goes.
The problem doesn't occur until after the vehicle has been driven approximately 100 miles as far as I can tell. At that point, I'll start to notice smoke coming from underneath the vehicle caused by the transmission leaking fluid onto the exhaust from the front of the transmission. At lower speeds, and while idling, the transmission will shake and shudder. It's not noisy or that extreme, but definitely noticeable.
I've also noticed on occasion there is a loss of power at higher speeds when the vehicle is in 4th or 5th gear. This mostly happens when trying to accelerate to pass on the highway. The transmission sounds like it downshifts, but the hard I push the gas pedal, the less power I have. If I push down far enough, the RPM's begin to drop. I've noticed that after I let the vehicle sit turned off for a couple of hours, it begins to work properly again, but it only lasts until the transmission is hot again.
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My 02 F150 4x4 at times gets a shake through the steering when hitting road cracks, pothole fills, etc. Would installing a steering damper system work or am I missing something to check in the front end. Ball joints are good, all steering linkage good, new shocks all around, control arm bushings look good and don't seem to shift when prying with a bar. Also changed all sway bar bushings and links. Maybe the control arms just have to be changed with 103,000 miles on it even if they appear OK? What about using an aftermarket steering damper on a stock F150? My long gone 82 GMC 4x4 had one from factory but it was also a solid axle setup.
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I bought a 1997 f150 with 160l miles on it. It is a 4x4 with the 5.4 v automatic. While I'm drive and in 4th and 5th gear, the tranny shakes the whole truck and then shifts hard! I check the fluid and it's still good and red but looks like there is to much. I'm planning on removing some and adding some lucus additive in it. What could cause this???
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I have an 01 4x4 Ext cab with the 5.4 auto. It just started to shudder in drive doing about 20-35 mph, it quit when I turned the OD off and has not come back yet. It also jumps in and out of OD while running highway speeds, kind of like hitting a bump or something like it. The shudder was in about 10 degree temps and not fully warmed up and the jump happens whenever I am at speeds around 60-75.
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In my case, from a stop, when I accelerate only in a turn left or right I get a shudder and shake from my rear end and it seems to be worse when the truck or air temp is colder.
well I went with the most basic thing first, popped the diff cover off, drained all the fluid, wiped out as much as I could get out of the collection area in the bottom. put a new gasket on and a little rtv, replaced cover. pulled the plug and cleaned off the shavings from the magnet and put new oil in it (I used Valvoline 75-90 with the friction modifier already in it, said limited slip right on the bottle)
test drove it around the block about a hundred times making left and right turns and the shudder and shake seemed to constantly decrease until it was perfectly smooth and noiseless!!! so that seemed to be an easy fix however I will report back to see what happens when I take it out cold in the morning.
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I've got a 12 FX4 SC 6.5' w/Ecoboost. After 1K miles I began to develop a shudder/shake in the tranny-driveshaft passing through 1500 rpm. 4 dealers, 6 overnights and 2 escalations, I finally am told there is a design problem in the pre Jan 12 trucks. Fixed with frame mod to manufacturing process after Jan, but no solution for current owners with the problem. I replaced my 07 FX4 SC with this truck and loved it for the first 1K miles. Now I hate driving it, especially in traffic (lots of cycles through 1500 rpm).
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When I first bought my 2001 f150 a few mos ago there were no problems but I did notice once in a while it would give one little shudder when id accelerate. now all the sudden it shudders after around 20 mph all the way up to whatever the speed limit is. Then it smooths right out until I have to accelerate again. if I punch the gas and kick it down it will clear up but then it feels more like a surging going on.
I had the cruise set at 70 the other day and I had to slow down to merge to around 50 and when I hit resume it really started shaking bad and the service engine soon light flashed on and off for a few minutes then went off and hasn't came back on again. I took it to advance auto and no codes showed up. they said its probably the torque converter but after reading multiple forums I am not so sure now.
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I have a 1999 F-150, 4.2L V6 with 206,000 miles that recently developed a rear-end shudder/vibration. According to my door jam axle code (27) and the axle tag (3 37), I have what appears to be a conventional rear differential, even though most of my research would indicate this rear-end is for the F-250. In any case, and based on other online research, I changed the differential oil with a 75W-140 synthetic and added 4oz of a friction modifier. Now the vibration appears to be worse. It primarily vibrates when taking off from a stop, whether turning or not.
I have felt the vibration at speeds up to 60mph, but it is more noticeable at lower speeds. The vibration also seems to diminish after driving the truck for longer periods of time, particularly if at highway speeds. In other words, when I drive to and from work, which is about 30 minutes each way of mostly highway, the vibration is barely noticeable once I exit the highway and slow back down to 35-40mph. When feeling the vibration, if I decelerate, the vibration immediately ceases, but starts again when I accelerate. It's not as noticeable if I accelerate harder, but I generally don't do that. The gears inside the differential didn't have any noticeable wear, chips or slop/play. What may be plaguing my usual trouble-free F150?
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Just bought a 1998 5.4l F-150 Lariat. 136,000 miles.
Question about the overdrive button on trans handle. When I push the button, I don't see any light turn on (or off) and I don't feel any change in the gear ratio or increase/decrease in rpm's. I assume since the button in there marked "overdrive" that the vehicle in fact was equipped with it. Could it be a bad button, fuse, or ?
Also, it just started the shudder/hesitation at certain speeds that I see a lot on these threads. Seems like that is a coil issue as the description in many threads is exactly what I am experiencing to incl the rotten egg/fuel odor. However, it started the same day (not same time, later same day) I decided to push the overdrive button while checking out all the things on the truck.
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I have a 03 f150 2wd with the 4.6l. Recently it has been slow shifting into reverse(about 2 full seconds) and when it finally gets in reverse it shudders when it comes under load. The fluid is full and not burnt...
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99 F150, 4x4, 5.4L, 4R70W trans.
I am experiencing a shudder at speeds between 45 and 50 when trying to accelerate mildly - it usually occurs after slowing down from a higher speed.
It is similar to the bucking that occurs when you do not downshift a manual trans.
I am guessing that it is the torque convert clutch staying locked or the tranny staying in OD too long. The shudder will go away if I give the truck enough throttle to downshift or simply push the overdrive off button - which forces it to downshift to drive.
What is the probable cause?
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I have a 02' f150 v6 67,000 miles. When I come to a stop, the trans shudders abit like the converter is still locked up. It then goes to stall in a few seconds. this does not happen all the time, fluid is clean. I understand there is a simple fix for this, or is this normal?
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Every once in a while, while idling at a light/stop-sign/etc, I get a shudder in the engine... usually all is smooth as silk, and then its like some fat kid just jumped inside the engine compartment (I'm exaggerating) ok, a very small fat kid its like weight shifted somewhere and you feel the ripple from it.
I did find this old thread [URL] .... but doesn't look like much came of it. I don't really suspect its a big problem, but definitely nothing I've experienced since 4-5 VWs ago, when I had a throttle that would race up (but the engine revs don't seem to be changing during this).
Car is in the shop for 10k today anyway, so I figured I'd have them take a quick check. (gotta see if they can do anything for the lackluster AC too).
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I will add as many details as possible :
2000 f150 4x4 offroad package
5.4L with 131k on it
new Dorman intake manifold
new Global Automotive (Ebay) COPs
New Motorcraft spark plugs
About 1500 miles ago I started throwing a code signifying a cylinder 3 misfire. The truck would bog down real bad and then after 5-6 seconds of no power it would return to normal. I tried replacing the COP (both with new and then with one from another cylinder) and plugs but no resolution. So I talked to the local ford service manager and he said it sounded like intake manifold problems.
Replaced the intake manifold and no more codes were being thrown.
1500 miles later and today the truck started having a hesitation/shudder when I was sitting in a drive-thru. I put the truck in neutral and park and neither solved the issue. With the earlier issue, when I would put in neutral and increased rpm, the issue would resolve.
I pulled out of the drive-thru and the hesitation was consistent no matter what the rpm or speed. The truck feels almost sluggish and lacks power. The hesitation is like 2x/second. When accelerating its almost like the rpms and speed hesitate, jump, hesitate, jump.
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I have a 2005 Subaru Outback, 3.0 H6, LL Bean, 5 speed auto. 150,000 miles. No engine codes.
I bought it took two years privately. I didn't notice during the test drive, but it has a shake/shudder at 18-20mph and at 55-60mph. Only at those speeds and only during acceleration. During light acceleration it isn't noticeable, but hard acceleration particularly on a hill at 55-60 the car can shake quite violently. Probably 50% of the time the 18-20mph shudder doesn't occur. It feels like the whole of the front of the car is shaking from side to side.
It doesn't matter what gear it's in - auto/auto sport/manual 1st, 2nd, 3rd, 4th, or 5th. So it's not engine rpm related. I've had the transmission fluid flushed. I've had two sets of tires. I've had the prop shaft replaced. It still does it, and it hasn't got better or worse. It happens both during straight line and turns.
The engine runs smooth and the gear shifts are crisp and smooth. Our local dealer doesn't know what it is (they suggested prop shaft) and our highly recommended local transmission shop doesn't know what it is. All CV joints have been checked.
I think the big clue here is that it is very vehicle speed dependent; 18-20 and 55-60mph.Could it be something to do with the transfer clutches? Does this transmission have an electronic control computer that needs an update? (This is a first year model). Is there vehicle speed sensor used by the transmission that could be bad but that wouldn't trigger an engine code? Unfortunately I can't disable the rear wheel drive like on the 4 speed transmissions, there is no fuse to do that.
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I have a new to me 98 F250LD with the 4.6/4R70W. I have maintained this truck fro my FIL as best as I could get him to spend (neglected). Filter and fluid replace with Mercon VI last year due to 2-3 shift slip.
He gave me the truck after it would not climb a hill, just hit stall speed and would not move up a steep hill, as I understand it. I put Seafoam trans tune in hoping it would free up sticky solenoids or valves in the VB.
I finally got it registered in my name and drove it to work and back today. After about 25 miles highway driving it shudders pretty bad trying to climb a hill at low speed.
It seems to me that at this low speed, torque converter lockup should not even be a possibility. I do not have COP, but rather a single coil pack. I replaced the wires and plugs for Dad a few years ago, but some shady shop later told him that I didn't replace the left rear (to make an upsale I suppose). Not sure what they may have done in there.
I have scanned with my ELM 327 and Droid using Torque Pro, and the only Fault is EGR flow.
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