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Sway bar / stabilizer bar rattle

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

2001 - 2007 V70
2004 - 2007 V70 R
2001 - 2007 XC-70
2001 - 2009 S60
2003 - 2007 S60 R

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Paul_okie
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Sway bar / stabilizer bar rattle

Post by Paul_okie » Wed May 24, 2017 8:10 pm

2001 v70 xc.
I've had a front end rattle for many months that has been driving me nuts. Replaced several parts to no avail. Finally fixed and wanted to share in case it's your problem too.

First, what I learned in my research: 2001 XC has sway bar bushings that are vulcanized to sway bar. Stock bar is 22.7mm. "By the book" fix for sway bar bushings is to replace the whole sway bar. If you search "2001 V70 sway bushing" you'll find write ups on cutting off bushings and installing new ones on existing sway bar.

My bushings had been previously replaced so it was much easier to put new bushings on. I ordered energy suspension 9.5115R (G will work too, black instead of red color) from Amazon. These are 23mm bushings which I had read from someone else that they would use if they did again. Well, I'd order 22mm ones if I did this again.

My symptoms: fine on large bumps, speed bumps. But on minor road imperfections, like going down a regular asphalt road or old crappy concrete I had horrible rattle. I was able to move the sway bar by hand from side to side and could see where bar was hitting lower control arm (don't jack up the car to check this. Any "twist" in suspension puts force on the sway bar and makes it tight).

In the end, I don't really think the bushings solved my problem. I added hose clamps over bicycle inner tube on each side of sway bar just outside the bushings to stop any lateral movement.

Getting the 14mm bolts off the bushing brackets is an exercise in patience. But with the right combo of box ends, ratchet wobble extensions, and regular ratchet extensions it can be done without dropping subframe.

Things I searched for and never found: Volvo sway bar hitting lower control arm. Volvo stabilizer bar hitting LCA. Volvo front end rattle on bad roads. 2001 V70 XC sway bar bushing replacement.

In the pics - new bushings are red, old bushings are black.
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Last edited by Paul_okie on Thu May 25, 2017 7:58 am, edited 2 times in total.
2000 V70 XC 153k (sold)
2001 XC V70 162k

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vtl
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Re: Sway bar / stabilizer bar rattle

Post by vtl » Wed May 24, 2017 8:13 pm

Right answer is: new XC90 sway bar! :)
05 XC70 260k, 16 XC60 40k, 19 Tundra 1k

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oragex
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Re: Sway bar / stabilizer bar rattle

Post by oragex » Thu May 25, 2017 6:11 am

Interesting repair, you say you've just tossed the bar on each side without removing it from there?
You may also want to start shopping for a control arm as well, the rear bushing it's cracked quite a bit ;)

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Paul_okie
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Re: Sway bar / stabilizer bar rattle

Post by Paul_okie » Thu May 25, 2017 6:42 am

Tossed the bar? No, I just replaced the bushings. And added the clamps to keep the bar from sliding through the bushings side to side.
2000 V70 XC 153k (sold)
2001 XC V70 162k

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Paul_okie
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Re: Sway bar / stabilizer bar rattle

Post by Paul_okie » Thu May 25, 2017 7:41 am

also, just noticed that several of the pics are upside down on the preview...if you click on them they are correct. So, not sure why that is, but if things aren't confusing enough already. The bushings sit ON TOP of the subframe, and the bracket bolts go down.
2000 V70 XC 153k (sold)
2001 XC V70 162k

jonesg
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Re: Sway bar / stabilizer bar rattle

Post by jonesg » Thu May 25, 2017 4:28 pm

I'm having the same problem now, replaced driver side ball joint and tie rod end, but still get a knock on small bumps at low speed,
strut top seats are good. So I'll take a look at this next.

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vtl
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Re: Sway bar / stabilizer bar rattle

Post by vtl » Thu May 25, 2017 4:53 pm

Did you check sway bar end link?
05 XC70 260k, 16 XC60 40k, 19 Tundra 1k

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