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Viberation #739542
August 19th 2018 2:59 pm
August 19th 2018 2:59 pm
Joined: May 2007
Posts: 9,769
On Route 66 in Bethany Oklahom...
Uncle_Fester Offline OP
Festerus Vannimus
Uncle_Fester  Offline OP
Festerus Vannimus
Joined: May 2007
Posts: 9,769
On Route 66 in Bethany Oklahom...
Okay, I took a trip down to Dallas Tx yesterday, and found a issue with my van, the 91 B-250, that has me somewhat stumped.
At about 60mph it develops a high pitched viberation that you feel in your feet and seat of the pants, and it goes away after you hit 73-75 mph. I checked the U-Joints, both feel tight, no slop, wiggle, or the like in them. The trans mount did not show signs of slop when I lifted on ithe trans with the jack, and the motor does not torque over showing signs of a bad motor mount . . . . . Did I miss something ? At or above 75 mph, smooth as a van should be at that speed, so I am not sure where to look next.

H E L P !


My van :
1991 Dodge B-250 (Junk Yard Dawg)
5.2 tbi V8, auto trans, and junk yard parts....


Founder & President of Sooner or Later United Truckers and PROUD TO BE A S.L.U.T. ! !
Re: Viberation [Re: Uncle_Fester] #739543
August 19th 2018 3:16 pm
August 19th 2018 3:16 pm
Joined: Jun 2010
Posts: 13,880
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 13,880
Van Diego California
Tire balance....


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Viberation [Re: Uncle_Fester] #739544
August 19th 2018 4:37 pm
August 19th 2018 4:37 pm
Joined: May 2007
Posts: 9,769
On Route 66 in Bethany Oklahom...
Uncle_Fester Offline OP
Festerus Vannimus
Uncle_Fester  Offline OP
Festerus Vannimus
Joined: May 2007
Posts: 9,769
On Route 66 in Bethany Oklahom...
Tires would viberate constantly from XX mpg and up, wouldn't it ?


My van :
1991 Dodge B-250 (Junk Yard Dawg)
5.2 tbi V8, auto trans, and junk yard parts....


Founder & President of Sooner or Later United Truckers and PROUD TO BE A S.L.U.T. ! !
Re: Viberation [Re: Uncle_Fester] #739546
August 19th 2018 5:01 pm
August 19th 2018 5:01 pm
Joined: Jun 2010
Posts: 13,880
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 13,880
Van Diego California
No they generally start about 45 mph


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Viberation [Re: Uncle_Fester] #739551
August 19th 2018 6:39 pm
August 19th 2018 6:39 pm
Joined: Aug 2005
Posts: 3,497
Wichita Falls, Texas
Starlord Offline
pooh-bah
Starlord  Offline
pooh-bah
Joined: Aug 2005
Posts: 3,497
Wichita Falls, Texas
Had one doing that John, turned out to be a caliper causing it.


2005 E350 Turbo Diesel
Why is it that when I press 1 for English, I still can not understand the person on the other end????
Re: Viberation [Re: Uncle_Fester] #739554
August 20th 2018 12:55 am
August 20th 2018 12:55 am
Joined: May 2007
Posts: 9,769
On Route 66 in Bethany Oklahom...
Uncle_Fester Offline OP
Festerus Vannimus
Uncle_Fester  Offline OP
Festerus Vannimus
Joined: May 2007
Posts: 9,769
On Route 66 in Bethany Oklahom...
Thanks guys,

I will go in the AM to the tire shop and get them checked....maybe I threw a weight.

If not that, I will pull the tires off at home and check the calipers for binding on the slide pins, clean and regrease them, and see if that helps at all.....

Beyond that, I don’t know, but I will find it somehow !

Thanks again for the ideas on where to look. I am also gonna give the strut rod bushings a good once over while the front tires are off.



My van :
1991 Dodge B-250 (Junk Yard Dawg)
5.2 tbi V8, auto trans, and junk yard parts....


Founder & President of Sooner or Later United Truckers and PROUD TO BE A S.L.U.T. ! !
Re: Viberation [Re: Uncle_Fester] #739568
August 20th 2018 10:35 am
August 20th 2018 10:35 am
Joined: Aug 2001
Posts: 11,783
Fircrest, WA
Reed Offline
Maniac
Reed  Offline
Maniac
Joined: Aug 2001
Posts: 11,783
Fircrest, WA
I recently eliminated a similar vibration on my 89 Ford. Van drove fine 0-60ish but had a wicked vibration at about 65-75. Above or below that range it was fine. I took a weekend to address a number of deferred maintenance items, including replacing the u-joints. I had no slop in them and I had kept them well lubricated, but it turned out the front u-joint was too tight and was binding. I put in new u-joints, greased them, and the vibration went away.

If the tires and calipers check out OK, check out the u-joints.


Windows- they're what make a van worth owning!
Re: Viberation [Re: Uncle_Fester] #739576
August 20th 2018 1:38 pm
August 20th 2018 1:38 pm
Joined: Jun 2010
Posts: 13,880
Van Diego California
frscke1 Offline
frscke1  Offline

Joined: Jun 2010
Posts: 13,880
Van Diego California
Yep thats another good cause ....


SUNSHINE VANS-VAN DIEGO
ADRENALIN BY THE GALLON & CHASIN RACIN
ONE FOR THE DIRT & ONE FOR THE STREETS
'93 CHEVY G30 454 4X4 SPORTVAN EXT 146" WB
'92 CHEVY G30 454 BEAUVILLE EXT 146" WB
Re: Viberation [Re: Uncle_Fester] #739669
August 22nd 2018 2:01 am
August 22nd 2018 2:01 am
Joined: May 2007
Posts: 9,769
On Route 66 in Bethany Oklahom...
Uncle_Fester Offline OP
Festerus Vannimus
Uncle_Fester  Offline OP
Festerus Vannimus
Joined: May 2007
Posts: 9,769
On Route 66 in Bethany Oklahom...
Tires did check out ok, and have not had a chance to check the calipers yet, but replacing the joints is fairly easy and not to expensive, so will add them to the list to do, as preventive maintenance


My van :
1991 Dodge B-250 (Junk Yard Dawg)
5.2 tbi V8, auto trans, and junk yard parts....


Founder & President of Sooner or Later United Truckers and PROUD TO BE A S.L.U.T. ! !

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