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Help! Car's going "CLUNK, CLUNK" !

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Old 10-11-05, 11:31 PM
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Help! Car's going "CLUNK, CLUNK" !

Okay, before anyone starts flaming because there's already topics on this, I would just like to say that I have read about 10 threads on this issue, but I'm still not exactly sure what the problem is. It could be the Toe Links, Trailing Arms, the rear 6 Pillow bushings, or the control arms.

The Problem:

Whenever I brake (medium to hard) or shift (while applying the gas medium speed or fast speed after the shift) the back of the car goes "CLUNK-CLUNK" and the back jerks back and forth REALLY REALLY hard.

What I've learned:

What I've learned is that it could be the rear toe links that's worn or the infamous pillow bushings in the back. After sifting furthur through the forms, I found out that these symptons could also be the trailing arms or the control arms.

Result:

Now while I limited the list of possible problems, I really can't afford at this point to fix all of them nor do I really want to.

Pillow Bushings would be 350 or so
Toe Links would be 250 (rotary extreme)
Trailing arms 200
Control arms 250 per side

Yikes!

Question:

1)So, I would really like to pinpoint the problem and fix just the problem now and save up and replace the rest of the parts at a later date. Based on the symptons, what do I do and what/how should I check to find the precise problem??

2)How reliable are used trailing arms, toe links, and control arms?? Some people sell used one for pretty cheap, but is it worth the risk?


ANY help would be appreciated. Thanks!
Old 10-11-05, 11:40 PM
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If you don't know what to look for, take the car to an alignment shop. Most places will give you a free estimate.

You really need to get under the car to find the problem. People here can only guess, while you can get under there, and be sure.

Just do it
Old 10-11-05, 11:43 PM
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For my case it was the diff mounts and trailing arms.
Old 10-12-05, 02:19 AM
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"REALLY REALLY hard" sounds pretty severe. Like a broken PPF or something. Did this just start?

The rest of the stuff you just have to dig in and diagnose. Jack up a corner, try to wiggle the wheel around in different directions. Use your eyes and hands to really figure out what's loose.

Alternately, just replace the most likely culprits as you get the money. There is a very good chance that you need new toe links (stock last the longest, BTW) and some pillow ***** anyway.

See what you have in there (all stock? some aftermarket stuff?). Aftermarket stuff typically wears out faster than the stock parts.

-Max
Old 10-12-05, 02:44 AM
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I'm actually all stock right now. I bought the car a week ago, so I'm not sure what's wrong with it.

It has 130K on the body, so I'm just going to assume that none of the suspension parts have ever been replaced.

Do you guys know if Rotary Extreme does free inspection for suspension or do i just take it to any random alignment place? Didn't know alignment places do all this fancy suspension work, but I guess hey have to if a car doesn't align right.
Old 10-12-05, 12:24 PM
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had similar problem and i replaced the pillow bushings. that fixed the clunk for me. i will probably upgrade the trailing arms and toe links down the road, but the pilloball bushings were great!! good luck.
Old 10-12-05, 04:41 PM
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Does it even make sense to get used stock toe links and trailing arms? Or should I just go for new ones from RotaryExtreme?
Old 10-12-05, 05:40 PM
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with that many miles on the chassis, I bet is the pillow ball bshings and the PPF.
Old 10-12-05, 06:05 PM
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What's a PPF?
Old 10-12-05, 06:43 PM
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Originally Posted by teflon
What's a PPF?
Power Plant Frame -- It's a black brace that runs from the end of your transmission to your differential.
Old 10-13-05, 01:29 AM
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So did you guys just get new trailing arms and toe links? Or used one with low miles okay too?
Old 10-13-05, 03:19 PM
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If your toe link bearings are bad, just get new ones from Mazda, and have them pressed into your existing arms.
Old 10-15-05, 04:50 AM
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Is your shifter moving around alot at the same time? If so It is definatly your Power Plant Frame. You probably have a crack, most likely near the transmission side of the brace.
Old 10-15-05, 02:17 PM
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Sorry if this adds to your confusion, but I actually got rid of a majority of my clunking by replacing the diff bushings. The rest went away when I got my mits on jimlab's low mileage, polished arms and had his nylon bushings pressed in. Having said that, I would just get new bushings. There are few on this forum that I would trust to buy used bushings off of. There really is no need to replace the arms themselves, unless you suspect or can verify they were damaged in an accident, etc. I just happened to get a terrific deal from Jim.
Old 10-17-05, 04:50 PM
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Does the differential bushings come with the 6 pillow bushings? Or is that something else entirely?
Old 10-17-05, 06:47 PM
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Originally Posted by teflon
Does the differential bushings come with the 6 pillow bushings? Or is that something else entirely?
They are totally different.
Old 10-18-05, 01:30 AM
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So i shoud replaced the 6 pillow bushings, toe links, trailing arms, AND differential bushings? =T
Old 10-18-05, 01:26 PM
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Originally Posted by teflon
So i shoud replaced the 6 pillow bushings, toe links, trailing arms, AND differential bushings? =T
You will have to see how much you are willing to spend. See if any of the bushings have freeplay prior to spending ~$800 in parts.
Old 10-18-05, 04:21 PM
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That is something else entirely.

I recommend getting a picture of the suspension so you can see what bushings go where.

-Max
Old 10-18-05, 04:32 PM
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you know, it would probably be cheaper to take your car to a rotary specialist and get a professional opinion on what is wrong. i doubt they would charge you more than an hour's worth of labor to look the suspension over and that is a helluva lot cheaper than just buying **** and slapping it on hoping it might fix the problem.

it doesn't sound like you know what to look for or how to look for it. it's a bit difficult to learn that solely by reading about it here.

you can find a rotary specialist by going to the regional forums for your area. considering you are in the bay are, it should be easy. I think Rick's Rotary is up by you.
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