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Old 10-14-2012, 04:59 PM   #1
whynotthinkwhynot
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Wobbly caliper (not a Focus)

So the wife's van (02 Windstar) has been making a rattling sound from the suspension when hitting bumps for a while. I was certain it was sway bar end links. When I went to replace these, I found that I'd already replaced them some time before, and there was no problem with the end links.

What I found might be making the noise was the caliper, as I wiggled on it, it made the same sounds. The bracket is tight, but for some reason the floating caliper is moving around too much. I do expect some movement from a floating caliper, but not this much. The brakes aren't installed incorrectly, and I do have shims installed- I assume correctly.

Does anyone know if the guide pins go bad and cause the caliper to move around too much? As far as I can tell these are the factory parts at 110k miles and 10 years.


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Old 10-14-2012, 05:09 PM   #2
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Both sides of the car are like this? If it were me I'd take the guide pins out and inspect those first and then take off the floating part of the caliper and see how it all fits together. My concern would be having to replace the floating part of the caliper, it sounds like those guide pin bores are now bigger than they should be.
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Old 10-14-2012, 05:21 PM   #3
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I would try pulling them out and greasing the pins up nice and good before I condemn them. I've heard of pins going bad but mostly from extreme rust and corrosion issues basically making them stick (sometimes permanently) in their bores. Some Subarus i've encountered will make a clicking sound going over bumps with new calipers we put on that don't have enough lube on the pins. Lube em up and the noise goes away.
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Old 10-14-2012, 05:28 PM   #4
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That's a thought. I have plenty of brake caliper grease. I've already ordered new pins from RA along with some other parts she needed. Firestone wanted $250 for the tie rod ends, I ordered a caliper hardware kit, 2 pin kits, sway bar bushings, 2 control arms, and 2 tie rod ends for $160. If that doesn't fix everything in the suspension for the next 100k, I'll shoot myself.

I'll have to shoot myself in the next 50k if the springs go out. Maybe someone will hit her before then.
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Old 10-14-2012, 05:31 PM   #5
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Pins usually get too tight from rust when the boots give up & the grease washes away.....

But they're easy to take out, inspect, & re-grease....

Suppose with an old beast like yours they could have passed that point and worn loose...

(grin)

Only pics I could pull up didn't show any shims, just the pads clipping to the outside ears and clipping into the piston.

Ends of pads would be supported from turning with the rotor by the bracket, a loose fit there would "click" a bit (rattle).

Luck Bud, wish I could see it from here, or better yet be there to share a beer & figure it out....

(grin)

Take Care...
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Old 10-14-2012, 06:14 PM   #6
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check the bores for out of round too if new pins don't fix it. its not common to see but it could be possible.
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Old 10-14-2012, 06:16 PM   #7
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LOL I barely have time to look at it myself. By the time I wake up on a Sat, I have like 2 hours to look/repair her van before she has to go to work. I'm lucky to get anything done at all!!
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Old 10-15-2012, 12:58 PM   #8
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Squeezing in time for ANYTHING is a PITA right now, haven't had a regular 2 day weekend in months to get anything done. (On the road the rest of the time)

With the Wife out on Comp. from an injury at the hospital, and some apparatchnik figured her monthly benefits using WEEKLY pay numbers, things have been "interesting"....

It's sad how things take MONTHS to get any care after a workplace injury, when otherwise having a busted up back requiring spinal fusion surgery would be a bit of an emergency....

Luck with keeping the Windstar going!

I'm hoping to get the ESSENTIALS done B4 Winter weather hits for real....

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