vibration while turning
Elder User
Joined: Dec 2004
Posts: 819
Likes: 3
From: Putnam Valley, New York
Vibration
Originally Posted by earl964
When I start to turn from a stop I get a bad vibration I get this when I turn either left or right
Any help would be great
Semper Fi
Any help would be great
Semper Fi
Make sure the truck is not in 4WD.
Mountain Pass
Joined: Aug 2006
Posts: 239
Likes: 100
Does your truck have a limited slip rear axle? If so it might just need some more friction modifier. When I getting ready to change the rear axle fluid on my F-350 my service manual said to add two bottles of friction modifier. When I went to the dealer to get the oil and stuff he said to put in three bottles of the modifier. I bought three but only put in two, then a couple of days later it developed a terrible vibration in the sterring wheel when I turrned, like one of the front wheels was falling off. Everthing else checked out, so I added the 3rd bottle of modifier and the vibration was gone.
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Senior User
Joined: Dec 2005
Posts: 133
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how can I tell if it has a limited slip rear axle? The tires that are on it are new they are Master Craft Courser 2 A/T2 LT285 75 R16
Any suggestions
Any suggestions
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Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
I was worried you had over sized tires causing undue strain on the power steering pump, but that doesn't sound like the case. The friction modifier in a LS won't go bad, so unless you recently changed the fluid I don't think thats it.
Can you duplicate the problem while sitting still? If so I'd stick my head under the hood and front end while someone else turns the wheel and look for anything that doesn't seem right. I assume you have checked the fluid level in the power steering pump.
Can you duplicate the problem while sitting still? If so I'd stick my head under the hood and front end while someone else turns the wheel and look for anything that doesn't seem right. I assume you have checked the fluid level in the power steering pump.
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FTE Leadership Emeritus
Joined: Sep 2000
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From: Stephensville WI
I'd say your power steering pump is going bad. You might also check to see of your serpentine belt is worn.
It isn't a limited slip problem or hubs, you have to be moving for them to be a problem.
It isn't a limited slip problem or hubs, you have to be moving for them to be a problem.
FTE Leadership Emeritus
Joined: Jul 2002
Posts: 42,561
Likes: 423
From: Long Island USA
With the wheels straight ahead, reach around back of the front wheels and turn the u-joint by hand. It should spin not-too-easily, but nice and smooth.
If the needle bearings are bad, the axle will lockup to the wheel bearing/hub and turn with the wheels, giving the feeling that the hubs are locked.
If the needle bearings are bad, the axle will lockup to the wheel bearing/hub and turn with the wheels, giving the feeling that the hubs are locked.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Power steering pump sounds like a problem except for the fact that it doesn't show any symptoms while turning the wheel when parked. Usually a weak pump will exhibit worse problems when the wheels are turned on concrete while not moving than they will while driving.
The next possibilty would be bearings, suspension issues on the front end. Is it more of a slight vibration in the steering wheel or more of a jerking, tugging feeling? A rougher jerk would be front end related.
Since I'm starting to run out of ideas I'll at least check in with stupid comments every once in a while to keep you up near the top until someone who knows what they're talking about comes along.
Semper Fi.
The next possibilty would be bearings, suspension issues on the front end. Is it more of a slight vibration in the steering wheel or more of a jerking, tugging feeling? A rougher jerk would be front end related.
Since I'm starting to run out of ideas I'll at least check in with stupid comments every once in a while to keep you up near the top until someone who knows what they're talking about comes along.
Semper Fi.
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Senior User
Joined: Dec 2005
Posts: 133
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F350-6 and everybody else thank you for all your help . If anybody can think of anything else that would be great. I dont have much knowledge of fixing trucks most of my life I have just been a grunt.
F350-6 I like your last sentence .
we never leave a man behind
Semper Fi
F350-6 I like your last sentence .
we never leave a man behind
Semper Fi
Senior User
Joined: Nov 2006
Posts: 176
Likes: 0
how can I tell if it has a limited slip rear axle?
Check here-
https://www.ford-trucks.com/forums/4...lder_____.html
Semper Fi
Check here-
https://www.ford-trucks.com/forums/4...lder_____.html
Semper Fi
Logistics Pro
Joined: Mar 2002
Posts: 3,881
Likes: 84
From: Wake Forest, NC
While it is true that the additive won't go bad, I have seen that when the clutches wear or the gear oil wears the chatter can increase. It will feel like a vibration especially when taking off from a stop, even taking only a slight turn. Adding more additive can help the problem. Sometimes a fluid change is needed with fresh additive. Sometimes the clutches need to be changed.
This happened with my Eaton. Initially it was smooth. After about 4000 miles it started to chatter. Adding a bottle of Ford additive and it was all good with no reduction in operation.
This happened with my Eaton. Initially it was smooth. After about 4000 miles it started to chatter. Adding a bottle of Ford additive and it was all good with no reduction in operation.