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Unread 11-28-2013, 09:46 PM   #1
DoughBro
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TJ Pulls hard to the left all the time

Lately my TJ has been pulling very hard to the left on the road. Accelerating, at all speeds, in neutral and slowing down. I've had the front aligned and the tires rotated and rebalanced. Today I measured the front again with a tape measure using the front and back of my inner sideways and they were dead on so and I jacked it up and rolled the wheels to see if one was harder to spin than the other. I'm running out of ideas. What is going on here?

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Unread 11-29-2013, 09:29 AM   #2
Loadsmasher
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Wheel bearing/hub? What were the results of your spin test?
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Unread 11-29-2013, 03:23 PM   #3
jeep-drivin-YZ
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Out of round rotors, brake caliper frozen. Something in the brake system
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Unread 11-29-2013, 05:34 PM   #4
Loadsmasher
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Out of round rotors, brake caliper frozen. Something in the brake system
For additional info, discolored rotors or excess heat in the wheel well area might indicate a brake issue.
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Unread 12-09-2013, 11:52 AM   #5
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Iv been getting ready for finals the past week so I haven't played with it any. When its was jacked up I spun the wheels and didn't feel a difference in rolling resistance. I'll check the rotors and brakes after finals. My steering has some play (just a little) that may have something to do with it? I feel like if it was a brake problem I would hear it so I'm thinking i have some worn out bearings or something along those lines
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Unread 12-10-2013, 08:00 AM   #6
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Originally Posted by jeep-drivin-YZ View Post
Out of round rotors, brake caliper frozen. Something in the brake system
I had a similar issue years ago when I had larger tires than current. Kept pulling to the right the whole drive. Well once it pulled me all the way over to the right and I had to remove the wheel and hammer the million degree caliper free and limp into a garage.
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Unread 01-16-2014, 03:15 PM   #7
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Alright so I got under there yesterday and measured my control arms (stock) bracket to bracket. Both upper and lower on the left were shorter by roughly .25-.5 of an inch. Hard to tell with the tight space I was dealing with. Ok so I'm thinking my axle is off by a few degree and not squared with the frame causing the left pull. I'm guessing its probably some toast arm bushings.
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Unread 01-16-2014, 07:10 PM   #8
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Quote:
Originally Posted by DoughBro View Post
Alright so I got under there yesterday and measured my control arms (stock) bracket to bracket. Both upper and lower on the left were shorter by roughly .25-.5 of an inch. Hard to tell with the tight space I was dealing with. Ok so I'm thinking my axle is off by a few degree and not squared with the frame causing the left pull. I'm guessing its probably some toast arm bushings.
Just measuring arm length does not tell you if your axle is square. Diagonal measurements from point on the axle to point on the frame is how to do that.
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Unread 01-17-2014, 08:49 AM   #9
1320yj
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A bad brake hose can cause that problem also, the inner lining of the hose fails allowing fluid to go one direction when brakes are applied but not return when the brakes are released.After they sit a bit the fluid gradually releases pressure and the wheel affected spins freely.
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Unread 01-19-2014, 12:20 AM   #10
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It's not measuring the arm length, its measuring the distance between the axle and frame arm mounts. If those aren't equal then the axle isn't square right? I'll do some more measuring on it soon...I have like a thirty minute gap between getting off work and it getting to dark outside to see what the heck I'm doing hahaha. I'm also trying to justify all the moneys it takes to upgrade arms hahah

1320yj makes a very good point...If that is the problem it wouldn't have shown up during the spin test. how would I do about checking that?
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Unread 01-21-2014, 12:30 PM   #11
longman
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Originally Posted by 1320yj View Post
A bad brake hose can cause that problem also, the inner lining of the hose fails allowing fluid to go one direction when brakes are applied but not return when the brakes are released.After they sit a bit the fluid gradually releases pressure and the wheel affected spins freely.
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Been there.
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Unread 03-21-2014, 01:43 PM   #12
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yea so for an update on this...still haven't fixed it...my tires are wearing evenly as far as I can tell so I'm still aligned ...I think...I'm going to get it aligned again when I put the currectlync in and my new MC CA's should be here today. So if those two upgrades work then yay 3 birds-2 stones. I also have some YJ break lines to put in so if the break hose is the problem that will fix that. If none of that works then I'm just going to live with it.
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Unread 03-28-2014, 05:00 AM   #13
sarkaukar2000
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It does not appear that the brakes have been ruled out. If the brakes on one side is dragging/hanging that wheel will be hotter than the other side. For a quick test drive it for abit then pull over to check the temperature of each wheel. Due to possible hot surfaces use caution
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Unread 03-28-2014, 07:43 AM   #14
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O sorry if I didn't say it before I have done that. No difference in temp. plus I've even been on the interstate for a good 40 minutes without breaking and nothing changes. I'm assuming if they brakes did need to gradually release eventually on the road I would stop pulling. That is not the case
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Unread 05-08-2014, 07:58 AM   #15
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So I redid my lift....new everything. My front adj LCA's are set to the same length...but driver side UCA is way longer than the other side...That was the only way I could get that stuff on there....but it's still pulling to the left really bad. Riddle me that. No abnormal tire wear. Bent axle housing?
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