My 99 Expy has a booming driveline vibration that started at 7k miles at 68-72 MPH. It got worse as the spectrum moved to 55MPH-85MPH. The dealer added a vibration damper to the rear axle and changed the drive shaft to the single cardon kind found on the LLS models. That took care of 90% of it. Now at 25K miles its coming back little by little. I'm afraid after its out of warrenty I'll get stuck with a real problem. I noticed ford has issued another TSB since I had mine fixed in 9/99. Its 99157 and also possibly 12572 as well as 99-13125.


DOES ANYONE KNOW WHAT THESE SAY??????

Especially the first one. Could one of you ford technicians look it up or relate your experiences here???

This is the only real problem I've had (so far).

Any help would be greatly appreciated.

PS I know there are many people affected by this. The damper fix was originally for F150s.


Thanks Bob

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99 EB Expedition 5.4L with all the perks,3.73 LS,Heated Mirrors and Seats. Everything but sun-roof. Rhino Step Bar, Ford Bug Shield,More to come...


[This message has been edited by ExpyBob (edited 03-08-2000).]

[This message has been edited by ExpyBob (edited 03-08-2000).]

 

Anybody know what these TSB's are, my 2000 navigator has similar problems, and I would like these bullitins to take to the dealer.

 

Stop and pick up a couple those heavy duty black bungie cords that truckers seem to throw all over the highway -- and strap them around your exhaust pipe in a couple of locations pulling it stiff in the most convenient directions.

If that solves your vibration, find a way to change the frequency of the pipe by strategically adding clamps or weights.

Please post your results.

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Y2K™ Jim

Toreador Red, Keyless XLT SC SB 5.4L E4x4 4wDisc/ABS, 3.73LS, Skid, HD 7700# Towing, LT-245's on Chrome, Tube-Steps, Captain's, 6CD, Tonneau, named: "Nick"

 

There is a resonance in the cab of the EXP. You are luck if you don't have it. It goes away if you have luggage in the back. Learn to live with it when you are empty. Just think of it as your EXP saying hello.

Oh yea, it could also be a tire out of balance in the rear.

 

You could try putting some dynomat under the rear carpet....if it stops with the rear loaded,it could be the rear floor resonating. just a thought. ,,,98

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98 F-150 4.6 Litre XLT2wd Ext. cab
prarie tan/tan int.
K/N gen.II fipk
custom dual exh/gibson rectangle tips/rear exiting.
color matched snuglid
Superchip!!!
Westin nerfs blk .powdercoat
Clear front corners
Cobra 75WXST cb w/weather alert
Kenwood cd w/Radio Shack speakers,don't laugh it sounds pretty good
Viper 500HF Security system
On the way/wheels,tires,air dam, etc..etc.......
doin the monochromatic boogie
on the front end.Billet grilles on order
www.my-f150.com
Fender Guitars,ROCK!!!




[This message has been edited by 98SCREAMER (edited 04-14-2001).]