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Brake pedal still soft after replacing everything

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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yanga001
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Re: Brake pedal still soft after replacing everything

Post by yanga001 »

Calipers would engage but never disengage properly on the front. Would require significant force but my tubes were toast.
1998 S70 N/A Auto (Parts car)(planned to be harvested)
1998 V70 N/A Auto New full restoration project (Water pump thrown at 404K Km)
1998 V70 N/A Auto (Workhorse) (Tree to driver B pillar :( )
1999 S70 T5 Auto(Project) (planned to be fixed)
2000 S70 SE M Learning platform (planned to be driven one day)
2008 S60 2.5T Auto (Sold)
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scot850
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Post by scot850 »

When the hoses get old they start to collapse internally causing it to work like a one way valve. The FWD cars have I think 2 or 3 hoses at the rear, 1 at each wheel and 1 that is a devil to access on top of the rear axle.

There are likely aftermarket hoses out there of a decent enough quality. Check the usual sources.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
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FireFox31
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Post by FireFox31 »

Thanks, this is good info. I'll increase priority of replacing the remaining brake hoses.

I recall being able to access the axle one by removing the exhaust. The ends were horribly rusted though. I might have to run new metal brake line if the fittings won't come off. On one of my cars, a shop had done just that, deleting that center hose.
FireFox31
Blue 2000 V70 NA manual, "the V70" - died, reborn, totaled, donated, stripped
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scot850
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Post by scot850 »

I can't recall why that center hose was there. I'll check the stash as I think I may have aftermarket hoses that may give you an alternate part number to chase.

Neil.
2006 V70 2.5T AWD Polestar tune
2000 V70 R - still being an endless PITA
2006 XC70 - Our son now has this and still parked in our garage
2003 Toyota 4Runner V8 Limited
2015 Kia Sportage EX-L - Sold
1993 850 GLT -Sold
1998 V70 XC - Sold
1997 Volvo 850 SE NA - Went to niece in California - Sold
2000 V70 SE NA - Sold

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atucker1
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Post by atucker1 »

If you’re going to replace the brake hoses FCP carries them! They have OEM options but I went with the Techna-Fit stainless lines when I had my brakes done, since they were about the same price. The quality is fantastic and I think they did slightly improve the brake feel.

Double check these are right by plugging in your VIN or trim but these should be the right and left rears:
https://www.fcpeuro.com/products/volvo- ... el-9492354
https://www.fcpeuro.com/products/bmw-vo ... less-steel

Not sure about the correct part for this third rear hose mentioned above though, I’d have to take a deeper dive in the parts diagrams.
1995 850 Turbo, Sedan
1996 850 N/A, Sedan

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abscate
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Post by abscate »

Remember Ni-Copp is incredibly cheap and easy to fit and flare. Bend it around a radius item to fit like a beer can (remove beer first for safety), a hockey puck, a socket, a large sombrero.

Do your DIN bubble flare practice, then cut it off, put the flare nut on, repeat. Now cut it off again, and put the nut on the right way. Make sure your nuts are near the flare before you bend it.

That sounded too personal
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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