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Vibration and Resistance while Driving

Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

Friedtrout
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Friedtrout

Vibration and Resistance while Driving

Post by Friedtrout » Fri Apr 15, 2016 8:29 am

Hi All,
Love this site but dont post much as I've been able to fix and learn a ton here. On my fourth Volvo (XC-90, V-70T5, 960 and now V70R) and really enjoy them.
Anyway, my 2K V70R AWD (185k miles)developed a low speed vibration (@30-40mph) and a resistance after a long 130 mile trip. Glad I was close to home where i limped it into the garage. I thought perhaps the emergency brake was on and confirmed it wasnt but there was an odor of mechanical heat. No rear drive shaft installed at the moment (replacement on hand). Slight leak at the angle gear which was my first concern that it was out of fluid and starting to bind but no whining noises.
But I also saw something on this site about de-lamination of the emergency brake shoes. Is this a common problem? No brake issues and disk pads have plenty of life left.
Any other ideas?
Thanks in advance.

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abscate
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abscate

Re: Vibration and Resistance while Driving

Post by abscate » Fri Apr 15, 2016 11:31 am

It's pretty common . They are 16-17 years old.

You have to remove the rear calipers and rotors to inspect them, replace and adjust

I'm not quite sure when the break occurred but on m y 1999 you adjust them with star wheels in each where, on my 2005 they adjust at the inside lever.

Be careful searching for hot stuff with your fingers.
Empty Nester
A Captain in a Sea of Estrogen
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Clemens
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Clemens

Re: Vibration and Resistance while Driving

Post by Clemens » Fri Apr 15, 2016 11:43 am

Yeah, and remember: If you can locate the part that smells burnt, you don´t have to touch it. It IS hot ;-)
Summer: 1996 855 R
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scot850
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scot850

Re: Vibration and Resistance while Driving

Post by scot850 » Fri Apr 15, 2016 1:58 pm

Also check the rear calipers are not seized. Another issue. If they are, and you have the vented rear rotors, the calipers are obsolete. You may be able to find a pair of re-manufactured ones if you are lucky. Volvo offers a replacement 'kit' which uses a different caliper, mount, pads and rotor. The 2000 V70R was a 1 year model for the rear brakes. Rear rotor back-plates are also obsolete.

Another point to check is the rear parking brake cables are free to move. They tend to seize as most folks think they are a non-service part, but I suggest stripping the rear parking brake system at least ever other year and cleaning and greasing. Check the cables where they mount to the rear shock-absorber mount. When they seize at the rear drum, they tend to break at that point.

Neil.
2000 V70 R - still being an endless PITA
2006 XC70
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - New project and test bed - Sold

Friedtrout
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Friedtrout

Re: Vibration and Resistance while Driving

Post by Friedtrout » Sun Apr 17, 2016 1:41 pm

Right rear wheel totally frozen. Starting to take it apart. Thanks for the responses.
Joe

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