2001 Ford Expedition

2001 FORD EXPEDITION
85,700 MILES • V8 • 2WD • AUTOMATIC
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CASTANEDA9
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Can someone help me out. My Expedition makes a thump thump noise on the take off and or at a stop. And also it tends to pull back as well. It sounds like its coming from the back.
Jan 21, 2009 at 5:14 PM
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JACOBANDNICKOLAS
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does it do it at a stop or as you stop?

Joe
Jan 24, 2009 at 4:57 PM
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CASTANEDA9
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It happens coming to a stop and on the take off.

[quote:085e71c00e="Jacobandnickolas"]does it do it at a stop or as you stop?

Joe[/quote:085e71c00e]
Jan 24, 2009 at 7:11 PM
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JACOBANDNICKOLAS
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Hi Again:
Ok... I have a few more questions. First, check the differential fluid to make sure it's full and clean. Next, check the universal joints on the rear drive shaft for play. Finally, check the tires to make sure there are no shifted belts. This may seem basic, but I need to start somewhere.

Let me know what you find.

Joe
Jan 24, 2009 at 9:56 PM
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CASTANEDA9
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I checked the differential fluid it's full not quite sure if it's clean. When I checked the fluid the plug was caked up. I checked the drive shaft for play I really couldn't move it. When I rotated the tires it got worse. The tires are ok granted they are roughly 8 years old and still in my opinion are in good shape.

[quote:9b1bb8c8f5="Jacobandnickolas"]Hi Again:
Ok... I have a few more questions. First, check the differential fluid to make sure it's full and clean. Next, check the universal joints on the rear drive shaft for play. Finally, check the tires to make sure there are no shifted belts. This may seem basic, but I need to start somewhere.

Let me know what you find.

Joe[/quote:9b1bb8c8f5]
Jan 24, 2009 at 11:26 PM
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JACOBANDNICKOLAS
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If the tires are 8 years old, that could be the problem. Rotate the rear ones to the front to see if the sound changes location or sound because of weight differences. Also, what do you mean when you turned the rear wheels, it got worse? Did the drive shaft get tighter?

Joe
Jan 25, 2009 at 1:03 PM
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CASTANEDA9
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before I had the tires rotated it wasn't that bad. One day after I had the tires rotated the thump thump noise got worse. As faar as the drive shaft getting tighter not sure. I just couldn't turn the drive shaft by hand not even a little.

[quote:0f8457af29="Jacobandnickolas"]If the tires are 8 years old, that could be the problem. Rotate the rear ones to the front to see if the sound changes location or sound because of weight differences. Also, what do you mean when you turned the rear wheels, it got worse? Did the drive shaft get tighter?

Joe[/quote:0f8457af29]
Jan 25, 2009 at 7:31 PM