Brakes work, but booster doesn't
Brakes work, but booster doesn't
When I brake while driving, the booster starts, but gives out almost immediately, so I have to basically stomp on the pedal to actually stop. I tested the hose going to the booster, there's no leak.
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FLXC90
- Posts: 1132
- Joined: 18 August 2014
- Year and Model: 98 V70 T5
- Location: Florida Panhandle
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sitting still do you hear a big chuff of air when you push the pedal?
normal failure mode is a hole in the diaphragm. Other way is hole in the outer housing, like rust-through.
normal failure mode is a hole in the diaphragm. Other way is hole in the outer housing, like rust-through.
Current Volvos:
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)
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Clemens
- Posts: 1934
- Joined: 3 September 2015
- Year and Model: 96 855 R + 94 855 T5
- Location: Austria
- Has thanked: 474 times
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Just out pf curiosity: is it a gas powered volvo or one with the audi diesel? The diesels have a vacum pump that goes bad. I just had that on my VW Multivan.
Summer: 1996 855 R
Winter: 1994 855 T5M
Donor: 1995 854 10V
Winter: 1994 855 T5M
Donor: 1995 854 10V
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FLXC90
- Posts: 1132
- Joined: 18 August 2014
- Year and Model: 98 V70 T5
- Location: Florida Panhandle
- Has thanked: 16 times
- Been thanked: 45 times
If you have a helper, one press brake, one listen for where the squeaker is. use a length of tubing as a stethoscope if necessary, to really nail it down, unless it is obviously inside the can. (booster)
Current Volvos:
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)
1998 V70 T5, 112k sat 5 years, still in mechanical coma (finally at the top of the pile )
2004 XC90 T6 AWD: 186k, 60 on transaxle ( traded in )
1998 POS70 N/A: DD/training aid, 236k but really about 240k, I think...ABS module( passed on to son who sold it)
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