Ford Super Duty (1999-2016) :: Clunk At Acceleration From A Dead Stop
Aug 4, 2015
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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My Superduty recently started clunking when I accelerate from a dead stop. The harder I hit the gas,the harder it clunks. I unbolted the driveshaft from the rear end and the yoke slides easily. Tranny mount looks tight. Could it be the front driveshaft? Sometimes when I brake hard and the truck comes to a complete stop it will do it too.
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Have an 06 F250. When I slow down to make a turn then accelerate it's like the drive shaft spins half a turn before it catches. Been doing it for awhile now. Now I'm get a clunk when I come to a complete stop. When you stop then truck settles there is a little clunk. Does this sound like the slip yoke problem?
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Every once in a while, while driving my 06 350 SRW at slow speeds, I hear a grinding noise coming from the left side of the truck. It is almost like a winding grinding noise if that makes sense. It will grind slow to a stop, and then I hear a clunk.
This is a very intermittent problem. The tires are completely shot on the truck, and I thought that would be it, but considering it is intermittent and the clunk I hear as I come to a stop I figured it could be it.
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2012 f250 SC xl 6.2 - Is it normal to hear a single clunk sound on occasion when accelerating from a stop sign? Doesn't happen all the time mind you and I don't ever remember hearing it in the past.
Now just today, while backing up my driveway, as soon as I started the reverse motion, I heard the same clunk. Sounds like metal to metal and comes from the rear of the truck.
Only 7000 miles on her and I treat her like a baby...anything I should be concerned with?
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I have a 2001 F250 SD V10 and when at a dead stop and with the brakes applied, steering becomes very stiff and almost impossible to turn the wheels. If I let off of the brakes and move a little the steering is just fine. I hate like hell to spend the money on a new power steering pump if it isn't going to fix the problem. Simply put, deap stop, brakes on, wheels don't want to steer. How do I fix it?
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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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My heater vents have been acting up. I have read that there may be a vacuum leak that causes the blend doors to default to defrost...
Where the vacuum line fails? I have ESOF 4x4 and that is still working. I think there may be a correlation between engine vacuum and my vents: at cruising or idle the vents work ok (not perfect) and under acceleration (less vacuum) the dash vents stop blowing.
I thought that the blend doors had their own vacuum pump, so I do not know why things change at different amount of throttle?
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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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So the other day i opened the door and heard a super loud clunk noise come from the door and when I turned the car on and pulled hte window down it wouldn't go down all the way, only about 75% of the way so I assumed like BMW cars the window motor died but oddly it continued to go up and down just now 100% down.
Then 3 days later when I came to drive the car again the window went down to the 75% mark and now its jammed there with no movement even if I tried to lift the window up myself. Usually a broken motor allows this to happen but since it isn't budging I am wondering if its an electrical issue with the power window button more than the motor?
I say this because when i try to lower the passenger window from the driver side it works than out of no where on the 3rd time it wont move at all than 5 minutes later it will move or if it doesn't move I just go and pull the window down from the passenger side then I come to the driver side and try it and it works again than it'll stop again. So maybe its the power window control buttons on the drivers side that's failing?
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So, on my drive home from the pub tonight, my clusters went dead, then came back on, then died again. This behavior repeated for the 5 mile drive home. In addition, I believe the lights weren't working as well. The engine was still running, so I simply continued on home and parked for the night. The only thing I can think of might be the problem is the fact that I replaced the serpentine belt the day before yesterday. Is it possible that the alternator is not charging the battery properly and that is what my problem is?
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I have a 2005 ford f250 6.0 I was driving back home from a interview and my truck died at a stop light it would crank but no start I tried replacing the stc fitting didn't work so the I replaced the ipr still didn't work bought a new hpop still didn't work I'm lost at this point I have low pressure oil pump is working new icp, what is going on?
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i have an 04 f250 5.4 4x4 250k miles+ ...the truck has been acting weird lately. I has 0 power...i went to pass an 18 wheeler today at about 15 mph and gave it about half throttle...well it held first gear till about 5 grand then slammed into 2nd...It just has 0 umph ... it wont even consistanly pick up speed at half throttle or over..the rpms will stop ...then pick up...then stop...it always accelerated smoothly....it is bogging really bad...it was downshifting into 3rd today on little overpass hills that it NEVER does that on...something is telling me torque converter BTW no codes and no flashing overdrive light
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So my '99 F350 4x4 is making a clunking sound and there is a distinct jolt in the truck while this is occurring.
Symptoms: From a stop while accelerating, there is a distinct jolt and clunk. The best way I can describe the feeling is like something isn't tightened down all the way so there is a split second while inertia is generated and the "looseness" catches up to the acceleration.
When stopping, the clunk and jolt is generated when the truck comes to a complete stop. When the truck rebounds backwards a bit because of the suspension pulls it backwards after stopping, you will hear the clunk again.
I replaced the ball joints a week ago an a wheel hub bearing on the right side. I don't recall this before these repairs, but it may have been making this noise. I was more focused on the grinding from the wheel bearing so I may not have noticed the clunk and jolt then.
Where I should start looking for the problem?
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2009 F350 4x4 DRW. Just replaced rod ends, drag link, sway bar bushings and end links, ball joints, and shocks. I have a clunk when the axle travels downward on bumps. The only thing I see is that the tie rod assembly will rotate easily by hand and I can make it clunk when I rotate it. It does not rotate in the ends, the ends rotate with it. Thinking this may be flopping around over a bump. Does tie rod rotate easily?
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When I am driving and hit a bump in the road, especially when the rear tires contact it square. I hear a clunk at the rear end. Sounds like suspension, loose tailgate...
My truck is a 2016 F250 Crew Cab Short Bed. It has a factory installed fifth wheel hitch. I have looked at the obvious, spare tire, loose bolts... I removed the tailgate and it still makes the sound. I removed the insert in the receiver, still makes the sound. No goose neck ball in fifth wheel hitch. Checked bed bolts. Cant find it. Drives me crazy.
I also have a 2008, exact same truck, 200,000 miles, no clunking. I have driven in my friends 2014 F350 Crew Cab Long Bed, it clunks. Dealer pulled a new truck off the lot today, took a drive, it clunks. Dealer can't find it and confirms there is a clunk.
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My trouble is upon turning key to start everything goes dead (no power to anything). Does not always happen, sometimes she starts just fine.
After the power cut out if I turn key off, wait a minute, then back to on position she will sometimes come back as normal or sometimes the on "ding" will chatter and dash lights will be dim.
I have checked batt connections, starter/solenoid connections, block ground connection. All seems fine. Get same problem when I jump starter with screwdriver. Been suggested to me ignition switch to blame.
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Like the title says, if it sits over night the battery will be about dead. The cables were replaced 6 months ago and are in good shape. I could not find and bad spots on the wires I can get to. One odd thing to note, with the key out of the switch I opened the passenger door to check the glove box light and the truck started chiming like I had opened the drivers door with the key still in the switch. Would that indicate maybe the key switch could be the issue?
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Am i correct in starting to look into why I can't hook a scanner or Torque Pro bluetooth up to my truck and starting with blown Cig lighter fuse? (Cig lighter doesnt work, power port does)
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I just got my truck back from the dealership where they said they tightened the nut on my pitman arm and now when turning either left or right when I approach full lock there is a massive pop or clunk that comes from the steering box. I have crawled under the truck and watched and felt everything as the wheels turn and the draglink, tie rod, sway bar links and cv joints as well as the front drive shaft are all fine. The noise is definitely coming from the top end of the pitman arm or higher. What it could be or how to fix it? I have an 03 6.0l f250 with a 4 inch lift all new springs and new sway bar
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The last couple of weeks a new clunk has appeared on my F350, 6.2 CC LB FX4. If I've been parked for a while, when I drive off, within the first 30 yards or so there's a clunk. Seems worse when I've turned sharply out of a parking spot. Sounds like the rear diff or drivetrain... I have a locking rear diff. Is this engaged or disengaged while "at rest"? Could it be that its slow to unlock when I start?
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