rear end leaking oil - Ford Powerstroke Diesel Forum

6.7 Drivetrain Problems 6.7 Drivetrain Problems

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post #1 of 11 Old 05-17-2013, 02:22 AM Thread Starter
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rear end leaking oil

Just wondering if this is a common problem, I have oil leaking out of the front of my rear diff, where the driveshafts comes in. I noticed it leaking when i was pulling my trailer last night. looks like it it getting worse as there it a ton of oil already thrown all over the under side of my bed and exhaust. I haven't had a chance to call the dealer yet, they don't open for 4 more hours.. If i remember right isn't there a seal in the front yoke park of the rear end? It wasn't leaking when i first bought it, the truck only has 9500 miles and just bought in back in october.. it's a '12 crew powerstroke fx4.
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post #2 of 11 Old 05-17-2013, 02:43 AM
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I noticed mine doing this as well the other day while I was swapping out my 4" exhaust for 5". Truck only has 54000 miles on it too, warranty better cover this!


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post #3 of 11 Old 05-17-2013, 04:05 AM
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Yes there is a seal there. You would have to remove the pinion nut and pull the half shaft off to replace the seal. Now I'm going to have to check mine this shouldn't be happening with that kind of mileage.

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post #4 of 11 Old 05-17-2013, 04:36 AM Thread Starter
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Yeah, I am not happy with the quality of the new ford at all so far.. been to the dealer for 3 different problems.. All covered under warranty but still. for a truck that has that few of miles i'm there way to often. When i called the dealer they were like yeah it's the front seal no big deal we will get one ordered and call you when it's in and we will get it fixed.. Also, truck seems to "forget" what gear it's in when coasting and get back in the gas, having dealer look at this, also seems to not be near as peppy as when I bought the truck. We have a second one on the farm and that one is more "peppy" that mine is now..
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post #5 of 11 Old 05-19-2013, 06:09 AM
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Mines been in the shop for two weeks Monday, no fix in-sight

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post #6 of 11 Old 05-20-2013, 04:57 AM Thread Starter
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Originally Posted by Profish00 View Post
Mines been in the shop for two weeks Monday, no fix in-sight
What's your in the shop for?
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post #7 of 11 Old 05-20-2013, 06:19 AM
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The rear end leaked then after they repaired it the rear end went out a few days later.

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post #8 of 11 Old 07-06-2013, 06:59 PM
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Any of you guys who had a leaking rear end, have you noticed a high pitched whining noise when you're cruising at lower speeds?


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post #9 of 11 Old 07-07-2013, 08:31 AM
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Mine has had a Gear Whine, and seapage for quite a while. I'm at 125K now and about to do a Brake job. Considering changing pinion seal while in there. (Have to remove axle and hubs to turn rotors), Also debating about draining oil and changing to synthetic, but not sure if Fords use any kind of additive.

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post #10 of 11 Old 07-07-2013, 11:03 AM
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Mine has had a Gear Whine, and seapage for quite a while. I'm at 125K now and about to do a Brake job. Considering changing pinion seal while in there. (Have to remove axle and hubs to turn rotors), Also debating about draining oil and changing to synthetic, but not sure if Fords use any kind of additive.
Overall, how many issues have you had to date with those many miles???

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