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can bad or failing master cylinder trigger ABS/Tracs light? S70 1998

I had the ABS/Tracs light come on and sent the module out to Vic Rocha for a rebuild. I am not questioning his workmanship due to all the reviews he has received here. So after correctly reinstalling the module, I still get an ABS light. Following his instructions, I also checked for a broken wire(s) at the ABS sensor at the wheel. I made one wire repair. The other wires were not obviously broken. Still have ABS light on.
Here's another brake issue which might be related: When I brake, the car slightly swerves to the left with the steering wheel turning just a bit like it is turning right. It's not alarming as much as it is annoying at this point. The car has had an alignment two months ago. The guide pins for the brakes have also been regreased. I do have to pump the peddle just a little to get the peddle to feel hard once again, though nothing that is something like slamming the peddle to the floor. Does this sound like the brakes need to be bleed or does it sound like the master cylinder is going bad? If it is a bad master cylinder, could this trigger the ABS/Tracs light?
Happy Easter.
George






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New can bad or failing master cylinder trigger ABS/Tracs light? [S70][1998]
posted by  GeorgeSignal  on Sun Apr 8 15:16 CST 2012 >


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