Ford F-150 (2004-2008) :: Clunk / Bump When Takeoff From Dead Stop
Dec 14, 2012
As I said when I take off from a dead stop I can feel a clunk or a bump that feels like it is coming from the rear wheels. I can feel it more than I can hear it, although I can hear it a little. It is difficult to describe this. It is only for a second and kinda feels like the rear wheels have no traction then it bumps and takes off. If I ease into the accelerator I can avoid it, but I don't have to hit it real hard at all to get it to do it. I am sure it is not u-joints as I put a brand new drive shaft from driveshaft specialist on in the spring.
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My 06 FX4 has 106k it started acting up shifting last week and its driving me crazy not knowing what part to change. Sometimes when I take off slowly from a dead stop it shifts really quickly into o/d by the time I am at 15-20mph. Doesn't matter far as hot/cold but if i accelerate quickly it doesn't seem to do it. I have read it could be the Shift solenoid or TPS.
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2010 F150 XLT FX4 5.4L Crew Cab Medium box, nice blue truck, lacking on chrome though.
My friend has a clunk/lag on take off from a dead stop only. Drives fine down the road, but when taking off from a complete stop, you step on the gas, and nothing happens for a second, feels like it lags, then clunks, gives a jerk, and takes off.
From talking to other newer Ford owners, seems like a common problem.
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I have a 04 lariat f150. Problem is every time I stop at a light or stop sign I hear and feel a bump. Coming from the rear I guess . Had my truck aligned asked the alignment person about the situation he said ford just do that. True or false ...
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I have a 2009 f 150 two wheel drive and after reading and doing a little research I found my problem. Slip yoke same as alot of guys here,come to a stop clunk,take off clunk. My question is my warranty ran out,I had a 30,000 or three year and now I have 31,000 plus it's like the truck new when the warranty ran out. There is a TSB on it,10-22-6 NOV 10 Drivetrain - Driveshaft Slip/Bump On Accel. Or Braking... Will they do any thing for me,and how much would it cost me to have the work done at a shop.
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I have a 2009 f 150 two wheel drive and after reading and doing a little research I found my problem. Slip yoke same as a lot of guys here, come to a stop clunk, take off clunk. There is a TSB on it 10-22-6 NOV 10 Drivetrain - Driveshaft Slip/Bump On Accel. I am going to pull the rear driveshaft and put in new grease MERCURY MARINE GREASE with TEFLON (2-4-c ) part nbr 92-802863A . How much do I need, will 8 ounces be enough.
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I am having a hard time locating a mechanical knock coming from my truck. This is not an engine knock but rather a clunking noise when I come to a slightly abrupt stop and sometimes when I take off or am steering. I have recently replaced my upper and lower ball joints and all the u-joints as well. My truck has a 6" Fabtech Coil over lift and a 3" body lift. The truck is also rather squeaky when going over speed bumps.
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I have purchased number 4024, in CW, and I am posting to ask about the transmission. During take off from a dead stop, the car tends to jitter. Not a fast repetitive jitter, more like a slow, stalling out feeling. a go stop go stop go stop go that blends in to each perspective motion. Now when I purchased the car, it had already been modified by member CWR32. The mods included GIAC software, intake, exhaust as well as suspension, bar, skid plate and all of that good jazz.
What I am trying to figure out is if any of your cars do or has done the same, either stock or modified. I have read something stating that the software controlling transmissions such as DSG determines how smooth the transition of gears will be. Is it possible that the tranny software was upgraded, is this tranny REALLY that clunky, does yours tend to do the same.
There is also a slight tendency for the car to jar roughly when put into reverse or first if i let off the brake quickly.
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I have a 2001 Subaru outback. Recently I've noticed a rattle when I accelerate, especially when I take off from a dead stop. I sounds like it's coming from the front wheel area. It also occurs sometimes when making a turn and then accelerate. It almost sounds like an object in a box and someone is shaking the box-very noticeable.
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Towing with my 07 F150. I now have a noise all of a sudden. I worry that is the rear end going out. As I accelerate normal from a stop, I , for one feel bump-clunk sensation, as if I have a bad u joint. 2nd I now have a "whip whip whip" whirring sound, sound character speeds up as I speed up.
I hope the sound is the brakes, because I know they are getting down to the end of their life.
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04 F-150 2WD 5.4L AUTO Extended cab
I had my tranny rebuilt under warranty at about 70K and I'm now at 167K. When it was rebuilt (by Ford) it still had a slip feel when I picked it up. Rode the mechanic around the yard and he felt it. Dead stop and take off while turning. Like from a stop sign. He took it back and found a sensor/module/something that was the culprit. Seems I remember they found it with a computer? Is there a computer/reader that will diagnose a tranny?
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For probably years, I have had a bump, thump type noise when I start from a dead stop... say at a red light. I had it in my head, maybe there was that much slop in the drive train... as old truck is over 400,000 miles.
Yesterday, I rebuilt the driver's side axle, bearing,seals, new hub...the works.. I heard that noise again later... and my thoughts were, I did all that work and I'm going to find a lower/upper ball joint is bad, although I did look at them and thought they were fine during the rebuild.
Had my wife get in truck.... and swing wheel back & forth... so maybe I could see what was loose.. or making noise.
I was shocked... just something I never thought of looking at. The u-bolts holding the leaf springs were loose... the whole axle was shifting back and forth on the axle. I've never touched those bolts....
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Bought an 05 FX4 SuperCab in May - been in shop twice for a "clunking" sound when accelerating from a dead stop. Dealer says it's "operating as intended" and that no damage was being if I continue to drive. I thought it was a rear problem with the limited slip. Dealer says it's the tranny and that Ford is looking into the problem (apparently quite a few are coming back). She runs smooth and shifts fine once she gets going. Just starting from a complete stop feels painfully wrong.
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When I accelerate from a dead stop I have this squeaking that comes from the back of the truck that goes away after a few seconds. Then when I get up to about 50mph I have this really annoying vibration. Its not a real heavy vibration but it is there. I am thinking it could be the universal joints, am I way off here or what?
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In my 2008 F150 with 108,000 miles, I am having a vibration in the brake pedal. When I am stopping or at a dead stop. I first thought it might be the rotors needing to be turned, but the vibration seems to go away when I turn off the a/c.
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I have a 2002 F-250 7.3 Powerstroke 4x4. My truck has developed a "clunk" for lack of a better term when accelerating from a dead stop. It is not a shudder as it only happens once within a few seconds of depressing the accelerator and then goes away until the next time I stop moving.
It feels like either something in the drivetrain is not engaging right away, or something is releasing, like a stuck caliper or something. From the way it feels and what I've read so far about the TC/Trans, I'm assuming it is something worn in the drive-shaft/rear diff.
But it needs brakes badly (already have all new rotors & pads ready to install) so maybe a caliper is sticking when depressed and then popping loose under initial acceleration? I think this is unlikely but possible.
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I am experiencing what feels like a "bump in the rear" when initially starting from a dead stop. It feels like a car behind me tapped the bumper or that the truck "hunkers down" first, then moves. Tranny seems fine also. Once moving, there is no problem whatsoever. There atre no noises, leaks, or other symptoms. Also, when coming to a stop, it feels the same way just before the truck completely stops. If I drift forward a little, then apply the accelerator, it does not "slip" or hunker down.
Took it to the dealer and they claim that they can't find anything wrong and may just be the suspension releasing? The truck does this whether loaded or not?
2001 F250 CC Lariat SB 7.3
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The car is manual, 95.000 KM. The problem is everytime i put the car in gear and start rolling, I hear a loud thump/clunk coming from the underside of the engine.
The only mods on the car are intake, a tune and a dog bone insert. The clanking is way more apparent when i'm in reverse. Whether i'm backing out of my uphill driveway or on a flat surface, EVERYTIME the car is at a dead stop and I give it throttle, something clanks...
My mechanic had lifted the car. He thought it might have been suspension, but he ruled that out. He believes that it is in fact the dog bone insert that is faulty. Upon further inspection, the red insert (from USP I believe) had cracked. although the insert was visibly broken (I've had it for barely 5000 km's, WTF) I'm not entirely sure that that is what's making the clunking sound because that sound was there from before I had put the dog bone insert in place.
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i am wondering if any other touareg v-10 owners have experienced what i call "slop in the drivetrain"?symptoms: when just crawling off from a dead stop and then letting off of the pedal i can both hear and feel a little clunk whether forward or reverse. its real subtle but its always there if you listen for it. Is this just what they call normal "slash" of the worm gears in the differentials? i would hate to find out later once warranty's gone that i should have done something about it earlier? i have 19,000 miles on it, 70%highway and 30% city driving.
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Slight clunk feeling from dead stop under more aggressive acceleration...my 14 250 AWD has done this on 3 or 4 occasions.
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The boss has an 08 Sport Trac, V8, 4x4. It has the hard bump when slowing to a stop. I've read here that there is a TSB to reprogram the transmission. Called a dealer in Ft. Worth to schedule appointment. Service guy say there is no TSB. Looking for a copy or number or anything on the TSB?
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