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What am I missing???

1.7K views 14 replies 6 participants last post by  Bon  
It totally depends on the car. My '08 Sienna was a pain only because, first, I couldn't get the cotter pin out of the castle nut. Go figure! I never had a problem like that before. And both right and left sides were the same fight. Oh, second, there simply wasn't any 'effen way to get anything suitable onto the ball joint nut to break it loose. Sooooo, I got out my grinder and ground off a chunk of the nut to release it. It then spun off without much of a fight. Everything else went smoothly. I have air, an impact wrench and a grinder so no bloody knuckles.

I don't know what the setup looks like on earlier models so I can't comment directly on your '04.
 
Interesting. The additional adjustment might help. I guess since my alignments have been pretty much spot on would this provide any additional advantage? I am also thinking, again due to alignment being pretty good, that even replacing the ball joints would be negligible.

Would the alignment tech advise you if there was a ball joint issue? I am taking it to Firestone so there is a creditability question, yet knowing how these guys want to sell ice to Eskimo I can't see them passing on an opportunity to sell you something.

Frustrating.
No, no and no. All my cars were perfectly in alignment. Over and over. No tech caught it. Ball joints on my Sienna and my SC430 all bad. Replaced by me. End of problem. I agree that they'd just about sell you anything but two different shops would just hand me the alignment before/after fancy color printout and take my $79-$89 and they'd offer me road force balancing etc but never mentioned the ball joints. Heck, when I removed them I thought I was wasting my time. But the road test afterward blew my mind. They were the culprit. The Sienna @ ~110k and the SC430 @ ~ 60K miles.
 
Chronic under inflation is the usual culprit. Tire pressure recommended by the manufacturer is just a starting point. Usually it's tilted toward a softer ride which means lower pressure. Increasing tire pressure naturally makes them balloon and therefore bulge more in the middle which is what you apparently need.

Now it's different if the inner and outer edges of your tires are not simply worn smoothly. If you can run your hand along the tire tread (lets say clockwise) and feel edges (it's call feathering) and then run your hand in the other direction (lets says counter clockwise) and it feels smooth then your have other problems. You might also feel a slow waviness and that is also an indicator of a suspension problem.

But if it's simply a greater wear rate on the edges versus the middle then I'd just pump 'em up. I usually run around 34 psi.
 
Lower ball joints. Toyota's are hard on them as they are highly stressed (undersized?). You only have lowers; no uppers. I've replaced some at 60K miles and it made a world of difference. By looking at them you'd swear they're fine. Mine didn't groan, squeak, rattle, or have any outward signs of being bad. After going trough the entire front end I replaced the ball joints on my '08 Sienna with 110K miles. It's been perfect ever since. Good luck with yours.