Ford 6.7L Power Stroke Diesel :: Pinion Seal Leak And Now Shudder When Not Under Load
May 16, 2015
Recently had a rear pinion leak and replaced the seal and nut. I jacked up the truck, took off wheels and felt the drag so I could duplicate once i had the new seal as I tightened the nut. I've done this only once before on my F150 years ago, but when I put the driveshaft back on and test drove it, i had shudder when not under load. So when I let off of the accelerator, it had shudder and more the faster I was going.
Obviously thinking this is a preload issue with the rear axle but would this be caused by tightening too much or too little. I had no issues before so I would think that the driveshaft itself is not the issue. I can't confirm that I got it bolted up in the exact same manner as before in relation to the flanges but still wouldn't think that to be the issue.
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I was getting ready to replace the carrier bearing and noticed the rear pinion seal is leaking. Before attempting the replacement myself, I would like some opinions on the noise in the video below. Is this normal? I am confidant I can replace the carrier bearing and pinion seal, but not sure I have the tools for anything else.
YouTube ...
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New issue this week - truck developed a leak from the pinion seal. I'm not sure how much has leaked out, so I would like to top it off before limping to the dealership.
From the manual: "Motorcraft SAE 75W-140 Rear Synthetic Axle Lubricant" There is also a footnote for friction modifier required for a Trans-Loc rear diff. Assuming that footnote refers to an LSD and NOT the E-Locker, should be able to top off with just the fluid, correct?
I am a die hard for Truck fan but am really disappointed with the overall quality of the truck. I bought it new and now with 30k, I've had it in twice to have rotors turned, once for transmission getting stuck in 5th and needed a new molded leadframe assembly, and now the pinion leak. All fixed under warranty, however really unacceptable for a truck with this low of miles and an easy life.
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I suspect I have a turbo seal leak. My 2004 E350 6.0 smokes like crazy. The smoke is white and smells like you poured raw oil on a hot manifold. Definitely not diesel smoke. How can I tell if it's my turbo without tearing it out?
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I was looking underneath the truck yesterday and saw that the rear end pinion seal was leaking. Looked like it had been for a while. Truck has 35,850 miles on it. Unscrewed the fill plug and a lot of pressure is released. So I'm assuming the breather is clogged somewhere along the line. I have an appointment at the dealer on Friday to see whats wrong. What is supposed to be at the end of the breather tube? Mine has a barbed 45ish degree fitting on the end of it. Its a SRW by the way.
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Got a shudder noise similar to an exhaust leak on my Excursion V10. I have no codes ... engine idles and revs fine.. Only hear noise when under load. Goes away when you let off the gas.
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Took the torque converter cover off and this is what I see. Before I took it off the cover looked oily. Prev I replaced the EGR valve and some other sensors and there was oil on top of the engine. Does this look like a rear main seal or oil dripping from the top of the engine?
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So I have just over 14k on my 2015....... I love the truck but have had a few small issues. I had a water leak coming in from the roof that would leak through the grab handle. Nothing major dealer replaced one clearance light seal and they said the windshield needs to be re sealed.
Then I had a god awful irritating squeak in the dash..... It only does it late In the day when it's been hot. The dealer said it was a loose air bag. I have had the truck back a week and it's doing it again.
Those are little issues that will get resolved...... I hate having problems with a brand new vehicle but I understand it happens and that's what warranty is for.
I also reported a bad shake to the dealer...... The truck will shake very violently and have a very loud "diesel" sound. It's very specific at when it occurs. It has only done 4 times in the past 6 weeks including today. The odd thing is the 4 times it has done it has been the same time of day in the exact same spot on the exact same road!!!!
Basically I leave my office sit in some traffic and by the time I get to the parkway it has been35 minutes or so. Only happens in 6th at 60 which is roughly 1,400rpm a slight load due to a small incline and it shakes real bad! The typical "diesel" sound you get when under a load is very pronounced almost to a knock. It will continue to do this as you slowly increase throttle until it down shifts and then goes away. I also caught it doing it and I manually shifted to 5th and it went away.
Because of the rpm at which it happens with slight load only doing it in 6th I lean to a Trans issue and more so a converter problem. It feels like converter shutter. I just don't understand the engine sound.
I gave very descriptive info to the dealer..... Several techs drove it and could not duplicate. I just picked the truck back up last Thursday and the dash squeak is back and the shake happened yesterday and again today. So I am a bit irritated to say the least.
I really hate the fact that I know there is a problem but I also understand if a tech can't duplicate it he can't diagnose it. However today I did get a video of it with my phone so they will know I'm not making this crap up!
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2011 F-350 CC, 45k miles... Found out yesterday mine is leaking. Way to early for these issues to pop up.
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Had oil seal failure on the rear differential at 35,000 miles?
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I changed my rear axle grease a couple of weeks ago and now I see some fluid coming out of the pinion seal. Do you think I overfilled it or do I need a new seal?
How hard is it to replace the pinion seal, will I need a new crush washer and will it knock out the preload?
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I have a 2006 F350 Superduty hd 4x4 6.0 Diesel. When it begins to start pulling from a standstill, it will not build power to untrack the load. Once it gets going the turbo will build boost and pull fine. Checked Boots on tube from turbo to intercooler for possible leaks. Replaced tube from intercooler to intake. Made sure map sensor tube was clear of soot (none at all in there). Air Cleaner is in good shape. Im a little Frustrated.
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I am tearing down my junkyard engine to prep it to put into my truck and I came across this on the rear main seal... is this a wear ring?
It kinda looks like a oil slinger. My new seal is on the way so I have nothing to compare it to.
I don't want to be yanking on it if it's supposed to stay.
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Couple weeks ago found some oil drops in the drive way so I got Underneath to see this disappointment. Hope the pictures come through for you all to see. She's been in the shop since Monday.
front crank case seal gone bad! what a mess.
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I took the front axle shafts out a couple months back and remember NOT seeing any differential fluid in the axle shaft housing. But then when I took the tire off tonight.. I noticed diff fluid leaking from from the axle shaft dust seal ?
1. I didn't think diff fluid flowed up near those front dust seals ?
2. That's a brand new dust seal so I'm guessing some debri must be in the connection causing the leak ?
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I have an '03 powerstroke 6.0, 4 inch turbo back exhaust. truck had lost boost and would cut in and out if i got on pedal and now a little bit of oil is collecting at tip, could this be because of bad turbo seals? And could the turbo still be alright? Another thing, I'm losing coolant, and I have noticed when I took the EGR out and cleaned it, the valve itself was the powdery black carbon, the cooler was wet, and I know it's not supposed to be like that. I am not thinking head gaskets yet, cause if it had a blown head gasket, I wouldn't be able to drive it. It is currently sitting, and I'm just trying to fix it. Would I be able to fix the turbo seals myself?
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I posted earlier about a whistle that appeared when I was towing my old travel trailer (6000 pounds). It only happened a couple of times, and I had a hard time replicating it, so I elected not to waste any money with the deductable, and possible additional costs for a non-covered issue at the stealership.
Now, I am towing a larger 5th wheel trailer (11000 pounds), and am experiencing this whistle on every steep grade, while towing. Below are a couple of things I noticed, that had to be, before I would get the whistle:
* It only seems to happen while the cooling fan is engaged, and also only when the rpms reached 2800 and above.
*If the fan was on, but the rpms were turning below 2800 rpms, then it would not whistle. It would, however, after the transmission downshifts, bringing the rpms back up, while climbing.
*If the engine was spinning at 2800 rpms, and the engine fan was not engaged, then it would not whistle, until the fan would kick in.
* It only seems to occur when I am climbing a steep grade, on a warm day. Although, I haven't experimented on steep grades on a cold day...
It sounds to me like there is an issue with the engine fan system, but I thought I would put it out there, just in case any of the diesel guru's out there might know of something else that would cause a whistle like this, i.e., turbo?
Oh by the way, I also think that I have a performance reduction lately. However, I can't know for sure, as I have never towed this much weight with my truck before. I just kind of expected that I would be able to pull to the top of these grades, with a little extra peddle to spare. I have to floor it, just to "try" and keep up with traffic. And I haven't calculated my fuel mileage while towing this beast yet, but WOW, that fuel gauge needle sure does drop like a rock!
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My 6.0 stalls out when under load above idle intermittently. When it stalls, if I release the gas pedal and tap it, it usually catches again but not always. ICP is strong and doesn't seem to waiver when it stalls. Engine runs much better when oil comes up to about 180. Oil / water temp spread about 5 degrees.
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After replacing both heads with remanufactured heads from ford along with new egr and oil cooler a month ago, she still overheats when pulling a load. While normal driving and not towing, no problems. In the last 5,000 miles since work was done and while towing approx. 15,000 lbs (load and trailer weight) she got hot once, slowed down, temp retreated got home - she has not overheated since then pulling 4-5 loads over the next 2,500 miles. Today at about 75 degrees only 4 blocks after picking up a load at about 12,000 lbs she started getting hot again. After I let her cool down and got on the Freeway the temp went down, appears she's not staying cool in the city with a load on. With all the work and new parts I had installed, what the problem might be?
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So I have had this happen 3 times so far. As I am driving, and step on the accelerator, I get a very bad shudder in the engine. The whole front of the truck is jumping up and down. Once I slow down it stops and is fine.
It has happened on the following three occasions but it is intermittent and does not do it all the time:
1. driving up a long grade at 45 mph for 5 minutes. I stepped on the accelerator to speed up and it happened.
2. Getting on the highway from 45 to 70 fairly quickly.
3. Once I got on the throttle heavy and got up to 80 MPH. I laid off the throttle to slow down and when I stepped on the accelerator again it happened.
I was not towing at any of these times. I do have warranty still but since I cannot always replicate it, I have not taken it to the dealer yet.
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The past month or two, my garage-kept 2011 F350 6.7 with 38K miles will shudder on startup for a second or two or three then runs normal. What would be causing that? She is my every day driver, but I don't drive her every day. Seems that the longer she sits, the rougher the startup. Last time I drove her was Monday. Started her up tonight to run to the store and she shuddered for about three seconds.
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