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SIUlero · 08-20-2011, 06:29 PM

The pulsation she's feeling is most likely the ABS pump kicking in because of faulty readings from the wheel speed sensor. It will only do it when the SVS, ABS and Trac light are not on, so if those come on before you can reproduce the symptom, you'll have to restart the car. With the radio off, you should be able to hear the ABS pump running when you feel the pedal pulsate. Also, try turning the wheel a little while braking if you can't get it to do it straight-line.

Like others have said, check your wiring first, and if that's all good, figure out which sensor it is and replace that hub.

08-20-2011, 06:29 PM	#10
SIUlero GL Member Join Date: Apr 2007 Location: Olney, IL Posts: 306	The pulsation she's feeling is most likely the ABS pump kicking in because of faulty readings from the wheel speed sensor. It will only do it when the SVS, ABS and Trac light are not on, so if those come on before you can reproduce the symptom, you'll have to restart the car. With the radio off, you should be able to hear the ABS pump running when you feel the pedal pulsate. Also, try turning the wheel a little while braking if you can't get it to do it straight-line. Like others have said, check your wiring first, and if that's all good, figure out which sensor it is and replace that hub. __________________ '01 Alero GL '72 Cutlass Supreme http://www.cardomain.com/id/CrazyOldsGuy Last edited by SIUlero : 08-20-2011 at 06:32 PM.