Question for you all

[Tomringler]

We'll just got it back they could not find anything wrong it would never due it it for them. But when I got it I drove from where I live to nashville and had no problems with brakes or anything but now I get it back from the shop that the dealer uses and when I go about 50 mph the vechicle has a shake that can be filled in the steering wheel

 

[Tomringler]

We'll it ended up at a different shop cause it was still doing it. The shop has had it for about three weeks until they decided to rebuild the front diff, then they said they took the expy for a test drive and said it was still doing it. So I told them what you all said about the iwe solenoid and they said it worth a try so hopefully today 2-25-2014 I get told they have it fixed






I am just glad it's under warranty!!!!

 

[Tomringler]

We'll just checked with shop they said they replaced the part and the problem is still there. And they are going to look into the rear diff and see if that's the problem

 

[Tomringler]

Well I don't think they know anything. I think they are just replacing parts. Do you all have any suggestions what could be the problem? I am wanting my expy back

 

[ExpeditionAndy]

You may have to bite the bullet and take to the dealer and let them figure it out.

 

[Tomringler]

That's what I am thinking


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[Tomringler]

Update
We'll thwart shop told me they took the rear diff out and looked at it and said the clutches are burnt. So now we are waiting for those parts

 

[soundtransmissi]

Several responses back, I stated that I was experiencing the same problem that you were having. Last week, I found out too that it was my rear differential clutches. The dealership diagnosed it, and I took it to my normal mechanic to do the work. With taxes, the bill turned out being $1,506. That was for a whole new differential - clutches, gears, spring. Drives like new now!

 

[Tomringler]

I hope to have mine back in a couple of days but the weather has made it hard for the workers of the shop


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[steelnewfie]

I have same symptoms. 06 EB 4x4 w Limited slip, 3.73's. Changed rear diff fluid added one bottle (all motomaster) friction modifier. No change in symptoms.

 

[Tomringler]

It might be to late

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[gulfman]

Had a similar problem the last few weeks after I changed the rear end gear oil. I have limited slip so you must use an anti-friction additive. I bought Mobil 1 synthetic with a friction modifier additive already added. That sounded good since I would not have to put in 2 separate bottles of straight additive. Wrong!!!!!!!!!!!!!! Several days later, the wheels felt like they were skidding on the pavement when I would accelerate in a turn. It was as if I was in 4 wheel drive on hard pavement. I went to the a dealer and he took a test drive with me and one of the first things he asked was if I had changed the rear gear oil. I said yes and told him I used Mobil synthetic gear oil with a friction modifier already added. He said you must add 2 bottles of the proper friction modifier first, with a limited slip rear, and then fill the rest of the rear with the proper gear oil. The expedition has a large rear.
He drained out enough gear oil to add 2 bottles of additive. He said it would take up to 100 miles to correct itself. the guy was right on the money. It has been about 6 days and 95 miles and the problem is gone. This could be your issue??