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This is one gamble you shouldn't take.


I have a 2003 Ford Explorer Sport Trac with 22,000 miles on it. I took it to my local quickie-lube place for an oil change. They offered to do a free alignment check. My boat-payment antennae went up immediately. They said the lower ball joints were worn and needed to be replaced. It drives like the boat it has always been, and I've noticed no unusual tire wear. How likely is it that the ball joints are worn? Is there any significant risk to not getting them replaced? Would I notice any indications that they're failing? -- John

TOM: Very, yes, and no.

RAY: On a 10-year-old car, I think it's very likely that your ball joints are worn out, John. Even though you have low mileage, the grease inside the joints tends to dry up, and that causes the joints to fail.

TOM: If you don't trust these guys, the easiest way to confirm this is to take the car to another mechanic and ask for a second opinion. If you don't have a mechanic you trust (which everyone should), try searching at That's a nationwide database of good mechanics who have been personally recommended by other readers and listeners of ours.

RAY: It's unlikely that you'd be able to determine, by driving the car, whether your ball joints are bad. You won't feel anything until it's almost too late.

Just before the ball joints break, you may feel a shimmy in the wheel and have time to say, "Hm, what's that?''

TOM: But your mechanic can tell by testing them. He'll put the car up on the lift and grab each tire at 9 and 3 o'clock, and try to push and pull it.

He'll do the same thing at 12 and 6 o'clock.

If the ball joint is good, there should be absolutely no back-and-forth movement in the wheel whatsoever.

If it moves at all, the ball joints are shot and you need new ones.

Got a question about cars? Write to Click and Clack in care of this newspaper, or email them by visiting the Car Talk website at
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Publication:Telegram & Gazette (Worcester, MA)
Date:Sep 15, 2013
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