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2012 S60 brake pedal no pressure Topic is solved

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cuhfs
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2012 S60 brake pedal no pressure

Post by cuhfs »

Need advice on whats wrong with brakes. Brake pedal went to floor and master cylinder reservoir was loosing fluid. I now just replaced the Brake Master Cylinder and replaced the Brake Booster too. Bled the brakes and no improvement on the pedal. The Booster I removed had brake fluid in it so I assume the master cylinder was leaking. Any advice on next items to check or replace. ?
04 C70 Convert Auto
06 XC90 Auto (ORE) #401/800
06 S80
05 S80
12 S60
04 XC70 Auto (Parts car)
96 850 Wagon Manual Trans & 98 V70 (gone)
95 850 Sedan Auto Trans (gone)
04 XC70 Auto (gone)
04 C70 Convert (gone)
01 C70 Convert Manual Trans (gone)

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volvolugnut
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Post by volvolugnut »

Did you bleed the master cylinder before installation? It may still have air in the master cylinder.
volvolugnut
The Fleet:
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
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cuhfs
MVS Moderator
Posts: 645
Joined: 31 August 2011
Year and Model: 850,XC70,XC90,S60,80
Location: New Jersey
Has thanked: 17 times
Been thanked: 28 times

Post by cuhfs »

I may not have bled the Master Cyl correctly. Just took the car out and it seems to have worked itself out, Brakes feel great now.
04 C70 Convert Auto
06 XC90 Auto (ORE) #401/800
06 S80
05 S80
12 S60
04 XC70 Auto (Parts car)
96 850 Wagon Manual Trans & 98 V70 (gone)
95 850 Sedan Auto Trans (gone)
04 XC70 Auto (gone)
04 C70 Convert (gone)
01 C70 Convert Manual Trans (gone)

User avatar
volvolugnut
Posts: 6222
Joined: 19 January 2014
Year and Model: 2001 V70
Location: Oklahoma USA
Has thanked: 927 times
Been thanked: 999 times

Post by volvolugnut »

if the master cylinder did have air in it, and it worked out, you will want to check the brake fluid level again. It may be low.
volvolugnut
The Fleet:
Volvo: 2001 V70 T5, 1986 244DL, 1983 245DL, 1975 245DL, 1959 PV544, multiple Volvo parts cars.
Mercedes: 2001 E320, 1973 280, 1974 280C, 1989 300E, 1988 300TE, 1979 300TD, parts cars.
2009 Smart Passion
Ford: 1977 F350, 1964 F150 (2), 1938 Tudor Sedan
Farmall tractors: 1956 400 Diesel, 1946 A
And others.

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