Go Back   Ford Expedition Forum > Ford Expedition Forum > Transmission & Drive train

Sponsored Ads
Register to remove these ads.


Transmission & Drive train

2000 4x4 vibration under heavy accel.


This is a discussion on 2000 4x4 vibration under heavy accel. within the Transmission & Drive train forums, part of the Ford Expedition Forum category!
Register to remove these ads. It's free! ok, first off, 2000 EB expediton, 4x4, 5.4l. When in A4wd it has ...



Reply
 
LinkBack Thread Tools Display Modes
Old 12-18-2009, 11:21 AM   #1 (permalink)
Full Access Members

 
Join Date: Dec 2009
Location: Caseyville, Il (near STL)
Posts: 171
Default 2000 4x4 vibration under heavy accel.


Register to remove these ads. It's free!
ok, first off, 2000 EB expediton, 4x4, 5.4l. When in A4wd it has a grinding/vibration noise definatly from the front side only during heavy acceleration. when I put it in 4hi, the sound is cut in half..maybe more, in 4 lo, its non existant....The vibration is felt only in the floor, and can be heard, pedels and steering wheel are smooth. Anybody had this happen and resolved? I searched and found one person with the same issue, but the advise was to disconnect the brown wire...

Last edited by outkast; 12-18-2009 at 12:29 PM.
outkast is offline   Reply With Quote
Old 12-20-2009, 10:39 AM   #2 (permalink)
Full Access Members

 
Join Date: Dec 2009
Location: Caseyville, Il (near STL)
Posts: 171
Default

bump.........
outkast is offline   Reply With Quote
Old 12-20-2009, 10:58 AM   #3 (permalink)
 
Stoned06's Avatar
Full Access Members

 
Join Date: Apr 2008
Location: Milwaukee
Age: 44
Posts: 988
Default

No expert advise here, but it sounds as if your transfer case may need some repair. I know there is a fuse that can be pulled that essentially does the same thing as the brown wire mod, so you may want to try that and see if it really does help.
Stoned06 is offline   Reply With Quote
Old 02-16-2010, 01:49 PM   #4 (permalink)
Registered User

 
Join Date: Feb 2010
Location: boston ma
Posts: 10
Default

Originally Posted by outkast View Post
ok, first off, 2000 EB expediton, 4x4, 5.4l. When in A4wd it has a grinding/vibration noise definatly from the front side only during heavy acceleration. when I put it in 4hi, the sound is cut in half..maybe more, in 4 lo, its non existant....The vibration is felt only in the floor, and can be heard, pedels and steering wheel are smooth. Anybody had this happen and resolved? I searched and found one person with the same issue, but the advise was to disconnect the brown wire...
mine does the same thing, dont know what it is , but pull fuse 104 under the hood and its fine no more noise.
frankiep is offline   Reply With Quote
Old 02-17-2010, 01:09 PM   #5 (permalink)
Full Access Members

 
Join Date: Feb 2010
Location: Springville, IA
Posts: 1,631
Default

i wouldnt recommend just "pulling fuses to get rid of the noise". thats not normal, therefore something is wrong. i would take it in to the shop and find out before repairs get too costly. gotta take care of your vehicle if you want it to take care of you.
nvycrmn is offline   Reply With Quote
Old 02-17-2010, 08:13 PM   #6 (permalink)
 
KWT2000's Avatar
Full Access Members

 
Join Date: Feb 2010
Location: NINE MILE FALLS
Age: 32
Posts: 2,376
Default

it sounds like the bearngs in the electronic clutch for the auto 4WD by pulling the fuse you can buy some time by disableing the clutch my advice is to have it fixed and not use the auto setting ford and gm alike
KWT2000 is offline   Reply With Quote
Old 02-22-2010, 03:58 PM   #7 (permalink)
Registered User

 
Join Date: Feb 2010
Location: South Bound Brook NJ
Posts: 1
Default

your not alone. I have the same exact problem. I pulled the 104 and it went away but Im blaming mine on mismatched tires F&R (same size / Diff brand)
Nutzy19 is offline   Reply With Quote
Old 02-23-2010, 07:57 AM   #8 (permalink)
Registered User

 
Join Date: Feb 2010
Location: Maryland
Posts: 7
Default I just started getting the rumbling noise.

It happened when I changed wheel/tire profile on my 2000 Expy. I'm getting the idea that it's related to the vehicle management computer managing the AWB, based on wrong tire profile/circumference. I'm going to get my comp reflashed (or, maybe buy/borrow a programmer) with the new profile and I'm hoping it'll go away. I'll keep you posted.
takem01 is offline   Reply With Quote
Old 02-25-2010, 08:00 AM   #9 (permalink)
Registered User

 
Join Date: Feb 2010
Location: Maryland
Posts: 7
Default I found my problem.

Was getting a rumbling from the TC under heavy acceleration. Went to Ford and the shop manager (a real nice guy) diagnosed the problem right away. At no cost. Seems that the new tires I put on the front had a different profile than those on the rear (about 20000 miles on them by my estimate), even though they were the same profile (255/75R17).
Guy says 'you're not going to fix the rumbling/thumping by reflashing for tire size, and explains that a difference of as little as 1/8" in profile results in enough mismatch in RPMs to mess up the control equations for the A4WD. He says you have to replace all 4 tires at the same time, etc., of you're going to get this kind of a problem. I went back to the 16's (all 4 new). problem solved. Once I get enough $$ to buy 4 17's, I'll go back.
takem01 is offline   Reply With Quote
Old 02-25-2010, 09:59 AM   #10 (permalink)
Full Access Members

 
Join Date: Dec 2009
Location: Caseyville, Il (near STL)
Posts: 171
Default


Register to remove these ads. It's free!
yes, computer only allowes a 3% difference front to rear.
__________________
2000 EB,5.4 ,aw4x4, 20inch AR's,275/55/20,custom duals 2.5 with 3 inch rolled angle tips,altezza tails,
outkast is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




GM Truck Forum
Ford Raptor Forum
Chevy Tahoe Forum
Chevy Cobalt Forum
Chevy Camaro Forum
FJ Cruiser Forum
Ford Truck Forum
88-98 GM Truck Forum
73-87 Gm Truck Forum
Dodge Ram Forum
Chevy Equinox Forum
Chevy Cruze Forum
Jeep Liberty Forum
Jeep Forum
Dodge Ram SRT10 Forum
Chrysler 200 Forum
Scion xD Forum
Scion xB Forum
Dodge Challenger Forum
Scion FR-S Forum
Softball Forum
SRT Forum
Nissan Titan Forum
Buick Enclave Forum
Cadillac Forum
Cadillac XTS Forum