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Old Jun 18, 2007 | 11:03 AM
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What would cause this?

I have a 07 Expedition with 900 miles on it. After doing some freeway driving I have noticed I can not drive the truck straight. I am constantly making small left and right adjustments to the steering wheel on a perfectly straight road. This is very annoying and makes driving very tiresome. If I let go of the wheel the truck does not pull drastically to one side but will 'drift' to the right with the steering wheel held firmly in the dead center position. Strange. Does anyone have any ideas on this? Thank you.
 
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Old Jun 19, 2007 | 09:59 AM
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Try rotating your tires, it could be tire pull.
 
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Old Jun 19, 2007 | 03:16 PM
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Most flat appearing roads have a slight crown in the middle this could be the cuase
of your slight pull to the right as you say.
 
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Old Jun 19, 2007 | 03:22 PM
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Originally Posted by i1dery
Most flat appearing roads have a slight crown in the middle this could be the cuase
of your slight pull to the right as you say.
Yes, I am aware of this. This is more than the road. Just curious about it. I will rotate the front tires and see what happens.
 
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Old Jun 19, 2007 | 05:41 PM
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When you say rotate the front tires, I hope you mean the front tires with the rear tires. Front ones go on the rear, and the rear ones go on the front. Don't change sides, right front to right rear, right rear to right front, left front to left rear, and left rear to left front. This is a good time to check air pressure too. A low tire will cause it to pull to one side, doesn't matter if the low tire is on the front or back.
 
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Old Jun 19, 2007 | 05:46 PM
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Originally Posted by CampSpringsJohn
When you say rotate the front tires, I hope you mean the front tires with the rear tires. Front ones go on the rear, and the rear ones go on the front. Don't change sides, right front to right rear, right rear to right front, left front to left rear, and left rear to left front. This is a good time to check air pressure too. A low tire will cause it to pull to one side, doesn't matter if the low tire is on the front or back.
Well I am going to first swap the front right to the front left and see how it goes. If it pulls to the left then I know that tire is at fault. If I swap front tires for back tires and the problem goes away, I won't know which tire was causing the problem. Is this correct?
 
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Old Jun 19, 2007 | 06:21 PM
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Well,, I guess you could do that. As a general rule with radial tires, you don't want them rotating in a different direction. If you move them to the other side of your Expedition, it will be rolling in the opposite direction. Check and see if there is anything different in the way the tires are wearing. As I said before, air pressure will do funny things to how a car drives. Check your door and see what Ford says you should say about tire pressure. If it is much different than what the tire says, you might want to go by what the tire says, or at least split the difference. A friend of mine has an early 90's Ford Explorer and the sticker in the door jam says 23psi for the tires, both front and back. He's a tire salesman and he knows that is a big mistake. He runs 35 psi in the front and 30psi in the rear. If he's going to haul a heavy load, he'll put 35 in the rear tires. If you have any questions about that type of stuff, ask your local tire salesman. They will know what's best for you. A dealer will only go by what the factory says.
 
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Old Jun 19, 2007 | 09:41 PM
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Originally Posted by CampSpringsJohn
Well,, I guess you could do that. As a general rule with radial tires, you don't want them rotating in a different direction. If you move them to the other side of your Expedition, it will be rolling in the opposite direction.
John - sorry I have to disagree with you here. Unless they are directional tires there is nothing wrong with rotating radial tires so that they will rotate in the opposite direction. As a matter of fact it is recommended by tire manufacturers to cross rotate your front tires to the back and to move your rear tires straight forward. Check out this link on The Tire Rack for what I am referring to.
 
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Old Jun 20, 2007 | 10:26 AM
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Well I swapped the front left for the front right and it pulls exactly as it did before. I am taking it to the dealer on Friday.
 
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Old Jun 20, 2007 | 10:58 AM
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Originally Posted by Ronin007
John - sorry I have to disagree with you here. Unless they are directional tires there is nothing wrong with rotating radial tires so that they will rotate in the opposite direction. As a matter of fact it is recommended by tire manufacturers to cross rotate your front tires to the back and to move your rear tires straight forward. Check out this link on The Tire Rack for what I am referring to.
I couldn't get the link that you were referring to. Perhaps I have things confused. I was told that when you rotate tires, it depends on what type of tire you have. If you have radial tires, you should rotate them differently than bias-ply tires. I know, today no one uses bias-ply tires any more. What you mention above, makes more sense than either method I learnd growing up. I will do that next time I do a tire rotation. Thanks, John
 
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Old Jun 20, 2007 | 11:50 AM
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berry1234 - sounds like an alignment issue being that you ruled out your tires. Hopefully the dealer will get it sorted out for you especially considering you are still under warranty. Let us know how it turns out.

John - try this link:

http://www.tirerack.com/tires/tirete...currentpage=38

If it doesn't work for you by clicking on it you can cut and past it in your browser. You are correct in that when radial tires first came out you could not rotate them where they would roll in the opposite direction due to the original radial tires would bed in the cords a certain way and then did not like being rolled in the opposite direction. That all changed shortly after the first generation of radial tires hit the market.
 
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