Ford 7.3L Power Stroke (1999-2003) :: Loose Sounding Rattle In Front End And Thud During Braking?
Aug 31, 2015
I picked up a 2000 4x4 F250 on Saturday.
The truck rides pretty good but on bumpy roads there is a loose sounding rattle in the front end. Also when applying the brakes there is a thud in the front drives side. You can feel it in the drivers floor board a little. Once you start braking about halfway to complete stop is when the thud is, if that makes sense. I suspect bushings but how do I know which ones.
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The noise is somewhere between a tin rattle and a bearing grinding heard most when braking but constant under say 10 mph. We have not been able to pinpoint where exactly it is coming from but I believe it is front drivers side.(but really could be anywhere) it is not dependent on rpm, nor gear or clutch engagement, Nor hubs engaged or disengaged.
The drives side front hub, rear hubs' bearings(races and seals) have been replaced. I have the passenger side front hub to do as well, just haven't gotten to it yet and it doesn't seem bad. we are all stumped on what it is. It seems to relate to the rotating assembly though as it seems to change with speed. it almost seems like tire rub, but there is no scaring or marks of any sort anywhere for it.
Vehicle is a e99 f250 short bed ext cab. open diff if it makes any difference. My next thought after the hub is pinion bearing? Could it be something to do with abs? say the truck is 4 wheel abs but the fronts are disconnected (trying to figure out if it is 4wabs as it appears to have connectors, but the original hubs did not have the hole for the sensors. no abs light comes on, but that could be a bad bulb too)
What we have found is hubs locked or unlocked, 4wd engaged or disengaged, and happens at right around 16 mph, braking, accelerating, clutch in or out, in gear or in neutral. All 4 corners have new bearings. We have found 2 things, 1 is the track bar bushings are shot (don't think this is the source of the noise but could be wrong and i will be replacing those..once I have money in again.. 2 the passenger side leaf spring when wacked with your hand makes a different sound than the drivers side.( could be a matter of different loads, but figured worth noting)
There are 2 noises, the first is the noise we hear, the second is one that i found when doing the noise reduction (loud meaty tires you cant hear the noise in the audio without reduction) I think that that was one of the hubs, or maybe the brakes, I am unsure, but it happens at different locations in the video.
Audio : [URL] ....
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I recently upgraded my exhaust from stock to a 4" Magna Flow Turbo back kit. After the upgrade, I noticed a strange rattle coming from the tail pipe. It sounded like the pipe was vibrating on something but I checked and it is free from anything touching it. There are no strange noises coming from the engine area. it is only herd at the end of the pipe. If I start the truck it makes a the loose rattle noise like something is loose inside the pipe like the sound you get when you have a bad muffler. About after 4 or 5 minutes I hear the exhaust noise change pitch and make a whooshing noise like a gate or something opening or closing and changing the exhaust flow. After a while it goes away and make the loose rattle returns. The truck has lots of power and preforms great. Where to look?
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I own the above described vehicle; I'm at about 196k and I'm the original owner. It's a quad cab, 2002 7.3L with power everything. I believe it's the XLT package (it's not in front of me... I'm at work. CONFIRMED... XLT package).
Currently, it's the workhorse and back-up for the family, not my primary driver - luckily. I've had failure if the automatic door lock on the rear pass. door, and a sticky lock on the rear driver's side lock - they've both been in this state for at least the last four years, no problems beyond the hassle of manual manipulation of the door lock from the inside - otherwise no electrical issues really to speak of.
Three weeks ago, we went to the snow. I rarely use the 4x4, but found that I had to use it that day to get out of some mud - it worked fine, no issues. In addition, I also used the cruise control... something I do rarely, but have not had any issue with it either.
In exiting the area some hours later at the end of our day, I noted two things... the "door ajar" dash light was illuminated and did not shut off through the drive home, and the dome light remained on until the battery saver shutdown shut it down... quite some time (where normally a key in the column turned past the insertion would shut it off).
When I drove home I used the cruise control, as mentioned, and it worked fine.
In exiting the vehicle while at home, as soon as the door was opened the horn started blaring panic alarm style - honk, honk, honk, honk... - and when the batteries are attached, there is nothing that stops the honking, except the battery saver timeout. BTW... no key in the ignition.
I don't use the FOBs... the batteries were dead anyhow (and I moved the FOBs out of range of the vehicle).
Attempted fixes:
- Lubing the lock/WD-40, then shutting/opening the doors (no luck/no change).
- Pulling door panels, removing locking mechanism, removing door ajar switches (I don't know what they're called), manually manipulating the piston AND checking each with a multimeter. (NOTE: One "seemed" not to work properly, so I purchased one from dealer and placed it back... still, no luck resolving the issues overall).
-Checked the wiring looms supplying all four doors - no broken wires noted.
- Replaced the two vehicle batteries.
I'm at a loss and I'm hitting up this forum before I move forward...
I've read that there are issues with the VSM for this year's model, but I'm hesitant to purchase the module without further feedback from a tech. I've read some general posts about alarm systems (doesn't apply to me) and horn issues (but those were horn constantly blaring... not the intermittent horn blasts of a "panic alarm sounding."
I've heard that the GEM and clockspring could be an issue, but I have to look more closely at the associated problems (like recheck to see if the cruise works... door windows go up/down like some threads have mentioned...). I have also read that the door ajar sensor switches attached to the automatic locks could be culprit, as they may "work" when pulled out, but not work when they're installed in the vehicle.
Ultimately, what the cause to the panic horn beeping, dome light and door ajar instrument indicator being on.
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My pickup has 316,000 miles on it. It's a 2000 ford f250 7.3 powerstroke. I have always bragged how my truck can pull anything because it has alot of power. Yesterday when pulling a 28' travel trailer up an incline I noticed I didn't have much power and it steadily got worse. Now I'm at a crawl when I hear a noise sounding like it lost air compression for a few minutes then the noise stopped. I stopped and looked to make sure everything under the hood was still attached and everything seemed fine.
I got back in and continued very slowly a few more miles home. Gauge were all good, never got hot. I put a scanner on it and it threw two codes. P1247 and P1248. I haven't noticed any unusual smoke. This is my second ford I've owned and know that when weather gets cold you may have to plug it in. But this truck it doesn't matter if it's 100 outside it will not start without plugging in for at least 1 hour. I've replaced all glow plugs hasn't worked. So I am assuming this break down now has something to do with it. I really am starting to not like fords!
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Heading back up to get the last load of antique tractors from the show and something seemed funny. 2 miles later turn into a side Road less power. Pull over. Oil everywhere. Shut it down. Nut completely unthreaded.
Get it on and tighten as best I could with a pair of channel locks one size too small. Dump in a gallon of oil. Now it is just on the stick. Start it and sounds good. Still leaking.
Called a buddy to see if he can get me. Yep sure but his wife is not happy. Something about him going to Texas at 7 am for work for a week..... Give him directions hoping he makes it since he has no sense of direction.
Obs 7.3 stops. Talk to him. He doesn't have anything better for tools on him but lives a mile down the road. Drop the trailer on the side of the road. Drive to his farm and got some better fitting pliers. Either I got too heavy handed or I cross threaded it. Stripped the nut. The flange threads look good.
Drive back to the trailer and sit intersection so my buddy doesn't miss it. Hook my trailer to his truck and get mine loaded. In the end it turned out as best as it probably could have. Pictures to follow when the sun comes up. Time to read up on the dipstick flange. Hoping a new nut and o-rings will fix it.
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While headed back to town my 2000 f350 7.3 with 444,650 miles (I'm original owner) and have performed maintenance and repairs since mile 3. Truck started to loose power and eventually stalled, was able to restart several times to limp home 7 miles in one hell of a snow storm. Very confused, replaced cam position sensor ( keep one in jockey box ) replaced fuel filter truck starts then stalls out. Don't know if a bad HPOP would allow start up at all. Fuel pump???
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Just bought a 1999 F250 7.3 cab and a half standard 266k miles. The steering wheel is really loose. Not loose as in turning the wheel to turn the tires but like moment up and down and side to side. Are there bearings to replace?
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Ive had plenty of brake issues with this truck since I've owned it and I finally got to inspect a brake i knew was having issues. The outside pad was metal on metal. The inside pad was gone and the one piston was extended completely open while the other one was closed. So to the question. Ive bled it like i do any other caliper and no luck. I went an bled all the other calipers and still no luck. The brakes seem to be working ok even though i never really tested them super hard but the pedal is far lower then it was before.
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I started noticing a problem with my steering on my 2000 Excursion, a couple of days ago. when I make left or right turn, the wheels seem to want to continue in the direction of the turn even as I am straightening up the steering wheel. I have to over compensate on the steering wheel to straighten the wheels it seems. It does it when I make a left or right turn, but seems to be worse when turning left. Also I noticed that if I'm driving on pavement that has ruts from heavy traffic, the front end seems to pull to one side then the other.
I've had the truck for 7 years and this is the first time this has happened to it. Is it an alignment problem or is there something else that I need to consider? I jacked it up today to check the tie rods and drag link, everything seemed ok
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Are we supposed to put anti sieze on the turbo to pedestal bolts. They were really hard to break loose when I pulled it Cheater bar tight. 18 ft. lbs sound right ?
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Over the past few months I have been hearing a low sounding vibration that seems to be coming from the drivers side front. It only seems to happen when I am driving on a straight road, but not on the highway. Recently, I have been hearing the sound more frequently and within the last month the front end has been shaking. I took it to a mechanic and he told me that the front sway bar links were broken and the rotors were warped. He said replacing both of these (and the front brake pads) would eliminate both problems. $700 later and not 5 minutes down the road, the low sounding vibration came back! I've been paying attention to when I hear it and it happens on a straight road just as I am approaching 40 mph.
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The truck is a new to me 99 f250 7.3. The problem occurred before doing the brakes, and after. The front brakes had new pads and calipers(rotors appeared to be in good condition) while the rears got New rotors, calipers, pads. The persisting problem is a really bad brake shudder that seems to be getting worse. It only occurs below about 5-10mph when braking. on this trip back to school there is a hill with a stop sign at the bottom where i should have rolled forward when i let my foot off the brake. This didn't happen.
It almost seemed as if the tires(meaty 35in dick cepek crushers) where rubbing and catching on something. but we checked and it didn't seems as if they were, though they do come somewhat close to the bumper. Im not even sure if its brakes or what it is, a friend of mine said possibly the hubs, but what can i do to pinpoint it? I wanna try loading down the front with something to simulate the drop when braking and see if the tires do indeed hit as when going to a rolling stop with only a little braking it doesn't do it. Any other things to check?
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2001 F250 7.3 4x4 330000
So weird noise while breaking but only right at the very end of the breaking cycle or if breaking hard. As soon as you come of the breaks it stops. Changed out front rotors and pads last night thinking that was it but its not. I'm inclined to think it could be the driver rear side by having someone else drive and brake whilst stood by it - rear rotors and pads changed 18 months ago and quick visual check appears they are ok. Just can't work it out - any thoughts? Caliper seemed ok on the front left, but would probably need doing in the next 6 months
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I have a shaking issue only at 40 mph + only while i am braking. I thought warped rotors, but the pedal isn't pulsing and if they are warped, wouldn't it do it every time regardless of the speed??
My second thought was the center support bearing. It had some movement so I replaced it tonight. Now there isn't any movement in the drive line. After a test drive, it hasn't gone completely away. It is still barely there.
I am not sure where to go next.
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I am having problems with my steering being all over the place. I noticed it at first when braking. It would pull to both sides. At a stop light holding the brakes my steering would randomly pull. I replaced the power steering pump. It didn't fix it. Now just driving it pulls all over. I was thinking steering box?
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I have a 4r100 on in a 99 7.3 4x4. The shifting problem I have appears to be intermittant. it seems loose after warm up especially at the 4th shift overdrive and passing gear. possibly due to low presures ? sometimes (lately more often than not) hunts back and forth between 4th and o.d when passing or hill climbing. Under normal driving it shifts somewhat firm with 4th being an exeption.I have changed my crank position sensor filters and fluids which had turned dark and improved slightly. When I pulled the pan and replaced the filter the pan was spotless. No residue or signs of plates or debris. There is about 100,000 miles on the tranny and 350,000 on the truck. Questions: Is there a tcm for this transmission and if so could it cause these problems? I'm considering a purchase of an unlocked 1705 superchip to change the shifting but unsure if this will work for my issues...
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I'm in the process of replacing my HPOP lines and fittings and after I got everything removed and started cleaning the threads before re-assembly I noticed this green wire (located above the fuel filter assembly) that apparently I pulled out of its socket.
What is it for? Can I just push it back in its sleeve right below the red wire??
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1999 7.3/4r100 4wd with the rattling torque converter.
I bought this truck 10-11 years ago to use as a tow rig for my landscaping company. It has been a great problem free truck, I have done brakes a few times, a water pump, ball joints but no issues with motor/drivetrain.
I don't know the history of the trans before I purchased. Ford didn't have history of it being replaced and even now it still has all the labeling on the case. I would have thought it would have been washed off in a rebuild. Again I don't know. When I bought the truck it shifted nice and crisp, having owned trucks before it made me think it had been rebuilt but this was my first and only 4r100. Other trucks are ZF6 manuals.
Anyway 10 years and 100,000 miles later it still shifts very crisp and fluid, has been changed a couple times, is nice and cherry red. I added a 6.0 cooler, temp gauge and filter. Never see the temp rise and haven't seen much in the filter.
About 25,000 miles ago the TC started to rattle, a known 99 problem. I figured surely the trans would go and I would do a rebuilt from Ford. It keeps going though so being a work truck I have kept running it.
A couple weeks ago the starter just spun and wouldn't engage. I pulled the inspection cover and noticed some missing teeth on flex plate. Got it to start my turning crank bolt a bit to good teeth and the starter caught. Now we are carrying a breaker bar and socket. It has happened a few more times so I need to replace flex plate.
Question is, since I need to pull trans to replace flexplate, should I replace TC (I would like to get rid of the noise)? Some people have said I will be replacing trans in a couple months if I mess with it. They say just spend $3000 on a rebuilt now with a converter. Not trying to be cheap but hate to just dump this trans that is still working great and has served me well.
I have replaced many transmission and done clutches in many trucks so I am familiar with the steps of removal and installation, just stuck on what I should do.
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My '01 f350 up and running the last 5 years. The truck has 130,000 miles on it and the transmission quit on me two weeks ago. My mechanic pulled the tranny and sent it to a very reputable rebuilder for a complete rebuild. My mechanic then reinstalled the tranny. I picked up the truck and when I paid the bill my mechanic told me that the rebuilder provided a new 4-plate torque convertor and that I would hear it rattle when I was at stop signs, stop lights etc. and that this was normal for these types of torque convertors. I have searched this forum and found all kinds of reasons for this rattle. None of which tell me this noise is normal or should be expected. I have no problem going back to my mechanic and discussing flex plate cracks, engine/tranny misalignment or any of the other causes...
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99.5 F-250 4 wheel drive. I have a rattle near the firewall in the shift mechanism. If I hold lever the noise stops. What is required to fix?
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