I have noticed in the last few days that at least one time per driving, the brake pulsates (seems like abs is kicking in) when going over bumps. This has never occurred before. Does anyone have any idea what could be causing this. There are no codes coming up. Any help is much appreciated.
Thank you.
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1996 850R intermittent brake pulsation over bumps
- bmdubya1198
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Re: 1996 850R intermittent brake pulsation over bumps
My '98 has done that too. How do your brakes perform otherwise? I always associated it with pads that are too hard, and don't seem to grab very well.
Otherwise, it would be a good idea to check your brake fluid to make sure it's at the proper level.
Otherwise, it would be a good idea to check your brake fluid to make sure it's at the proper level.
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Re: 1996 850R intermittent brake pulsation over bumps
If the wheels are losing traction on a bump, the traction controls (TRACS or STC) uses ABS to control wheel spin - that might be it.
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Re: 1996 850R intermittent brake pulsation over bumps
Just strange that all the sudden this started happening
- WhatAmIDoing
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Re: 1996 850R intermittent brake pulsation over bumps
It is more likely for your wheels to lock up when braking on a rough surface, because there is more rolling resistance. I know on my last trip through PA, every braking event set off ABS because the roads are nothing but potholes.
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Re: 1996 850R intermittent brake pulsation over bumps
start by turning tracks off, also may be the insulation is gone on the pump wires and they are arcing.
Re: 1996 850R intermittent brake pulsation over bumps
I just noticed now, that the TRACS OFF Light is permanently illuminated. Does this help any in the diagnosis of the issue?
Thank you
Thank you
- bmdubya1198
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Re: 1996 850R intermittent brake pulsation over bumps
Nothing changes when you hit the TRACS button? That could be indicative of a failing ABS module, or other ABS/TRACS issues. You can't get flash codes on a '96, right? You probably need Vol-FCR or 850-OBD2 on Android to read ABS codes.
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Sold-
00 S70 GLT Mystic Silver/Taupe 253k
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98 S90- Silver/Gray 207k
95 850 GLT Tropic Green... crushed
01 S60 2.4T Black/Black 230k
88 744 Turbo M46 Beige Metallic/Beige 188k
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