Expedition 2003 EB - Grinding noise during turns
#1
Expedition 2003 EB - Grinding noise during turns
Hi,
I have a 2003 Expedition 4X2 EB and love it. However, lately, I've been hearing a grinding noise during turns if and only if I accelerate. If I just turn at normal speed without pressing the gas pedal, no noise is coming. I'm not sure if it's coming from the back or the front. Some folks mentioned bearing hub and my son also researched it and found out that I should change the differential oil.
I changed the gear box oil last year but what the heck is the differential oil? The transmission oil has been changed recently.
Any help is greatly appreciated.
Warmest Regards
Al
I have a 2003 Expedition 4X2 EB and love it. However, lately, I've been hearing a grinding noise during turns if and only if I accelerate. If I just turn at normal speed without pressing the gas pedal, no noise is coming. I'm not sure if it's coming from the back or the front. Some folks mentioned bearing hub and my son also researched it and found out that I should change the differential oil.
I changed the gear box oil last year but what the heck is the differential oil? The transmission oil has been changed recently.
Any help is greatly appreciated.
Warmest Regards
Al
#2
#4
Do you have a limited slip differential (LSD)?
I'd say it's the clutch packs in the rear differential. If that is the case it is a relatively easy fix, and you need to make sure you add the friction modifier during the change. If over 100k miles consider adding 2 modifiers. The rear diff fluid should be chaged every 30k if you LSD.
I'd say it's the clutch packs in the rear differential. If that is the case it is a relatively easy fix, and you need to make sure you add the friction modifier during the change. If over 100k miles consider adding 2 modifiers. The rear diff fluid should be chaged every 30k if you LSD.
#5
#6
You just need to change the fluid, not the clutches. The clutches are binding because the fluid has lost it's lubricating properties. There is a drain plug in the middle of the pumpkin that alloro described, and the fill port is a square drive plug on the driver side on the opposite side of the pumpkin (towards the front). Make sure you can get the fill plug out before you drain.
#7
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#8
I'd stop calling it a gear box or they will be looking at your transmission.
Assuming you have the LSD and that the clutches are binding, you want the rear differential fluid changed. That should include 1 bottle of modifier as standard practice for LSDs. My dealer puts two bottles in trucks over 100k, and I have been doing the same for around 65k miles now on one of my Expeditions. The fluid change is around 2 quarts, the modifier is just a few ounces per bottle.
Assuming you have the LSD and that the clutches are binding, you want the rear differential fluid changed. That should include 1 bottle of modifier as standard practice for LSDs. My dealer puts two bottles in trucks over 100k, and I have been doing the same for around 65k miles now on one of my Expeditions. The fluid change is around 2 quarts, the modifier is just a few ounces per bottle.
#9
Do you have a limited slip differential (LSD)?
I'd say it's the clutch packs in the rear differential. If that is the case it is a relatively easy fix, and you need to make sure you add the friction modifier during the change. If over 100k miles consider adding 2 modifiers. The rear diff fluid should be chaged every 30k if you LSD.
I'd say it's the clutch packs in the rear differential. If that is the case it is a relatively easy fix, and you need to make sure you add the friction modifier during the change. If over 100k miles consider adding 2 modifiers. The rear diff fluid should be chaged every 30k if you LSD.
thanks again,
Ali
#10
2003 Ford Expedition EB 4x4
I have the same grinding noise when turning, they told me it was the tires so I change them and continue to do the same noise, they told me it was the axle, so I change both and still the same noise when turning I also did the change in the oil and still the same noise. Can someone help me!
#11
I have the same grinding noise when turning, they told me it was the tires so I change them and continue to do the same noise, they told me it was the axle, so I change both and still the same noise when turning I also did the change in the oil and still the same noise. Can someone help me!
This grinding noise, is it in the front or the rear?
#12
fixed it Liz
Hi Liz,
Just change the oil tin the gear box to the one dealer uses and ask them use double viscosity. My problem went away. all done. Forget the rubbish others are posting.
#13
2003 Ford Expedition EB 4x4
The grinding noise is when you turn on the front, they also told me to change the back tires to see if that will stop the noise, but, my thing is the noise is in the front every time I turn or if I'm in a complete stop and turn.
#14
I have the same grinding noise when turning, they told me it was the tires so I change them and continue to do the same noise, they told me it was the axle, so I change both and still the same noise when turning I also did the change in the oil and still the same noise. Can someone help me!
How do you know it is the same sound?
This is the rubbish you should not listen to.
Continue to work through the problem with the people who are helping you, as many are professional mechanics.