4WD Problems..
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Senior User
Joined: Feb 2005
Posts: 428
Likes: 3
4WD Problems..
'00 Expy EB 5.4
Having some problems and believe it has to do w/ the front 4WD. When accelerating from a stop I feel the truck shuddering but stops once going. Also when I turn sometimes the front wheels feel like they are binding a little. Local oil change place checked the fluid and it appeared fine and not dirty. Where do I start to troubleshoot this? Transmission shifts fine, 4wd appears to function, I can hear a clunk when shifting into 4Lo.
Ideas?
B.
Having some problems and believe it has to do w/ the front 4WD. When accelerating from a stop I feel the truck shuddering but stops once going. Also when I turn sometimes the front wheels feel like they are binding a little. Local oil change place checked the fluid and it appeared fine and not dirty. Where do I start to troubleshoot this? Transmission shifts fine, 4wd appears to function, I can hear a clunk when shifting into 4Lo.
Ideas?
B.
Freshman User
Joined: Feb 2005
Posts: 27
Likes: 0
I think the binding in front when youre turning is some what normal....remember when in 4 wheel drive....the back tires are pushing forward while the front tires are trying to pull to whatever direction youre turning and the back tires are shoving the front tires forward. I guess thats why they tell you to use 4 wheel drive in slippery conditions because there has to be a percentage of slip so the 2 axles don't fight with each other. The clunk you hear when going into 4 wheel low I also think is normal...its the gear box switching to the lower gear ratio. If Im wrong, someone else speak up since Im new to the 4wd world also. This is the general consensus I got when asking similar questions.
Senior User
Joined: May 2004
Posts: 236
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From: Ottawa, Ontario, Canada
Same year, same problem. There are lots of threads on the forum about this. Usually it is a slow turn eaither right or left. I know it feels like it binding in the front, but the source of the problem seems to be the spider clutches in the rear limited slip differential. I changed out the diff fluid in mine and it seems to have made the problem disappear. Remember to add the friction modifier (smells terrible!). This is somewhat expensive since the differential fluid is about $20 a quart. Do a search for more info. Some people use a fluid that is not FORD, and sometimes these manufacturers claim that you do not need the friction modifier with their oil. I think you do and the modifier is the inexpensive part of the fix.
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New User
Joined: Apr 2005
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'99 - 5.4awd, Yesterday I replaced the front Right Tire. Mine too now has this issue. It pulls to the right, and has a slipping in front right. Feels like 4x4 mode is sticking. Also, strange noise/ vibration coming from right wheel. Swapped left and right wheel, no more pulling but noise still present and still sticking or slipping feel. Any guesses? axtell@hotmail.com
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From: Jersey Shore on the Right
Originally Posted by silly34
Just realized something that might be confusing some of yall. This problem is with the switch in the 4AWD not actually set in 4WD.
B.
B.
New User
Joined: Aug 2005
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I have an 01 Expedition. The problem of shuddering occurs when accelerating slowly from up a hill or slight grade. the problem was the rear axle lower contol arms. They were both either (too short or too long,) This affected the pinion angle,this is a known problem. I had it at Ford twice and they kept it for 4 days. They said ford had a batch of the wrong size arms installed from the factory.The dealer had a factory engineer come in to measure the angle. Both arms were replaced under factory warranty.
New User
Joined: Sep 2005
Posts: 2
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From: California
OK..I too have the "Shudder" upon acceleration while turning. I looked in my manual to find which fuse is "104" but I couldn't find that number. The only one that was close was 14. What am I missing??? Can someone direct me in??
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