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93 Maxima - ABS Chatter

I wonder if anybody has any suggestions about a problem I'm having with my 93 Maxima (85K miles).

When I come to a stop the brake pedal pulsates, pushing back against my foot. This happens only during the last couple of seconds of the stop, when I am going very slowly and subtly *reducing* pressure on the brake pedal. As your foot comes up off the pedal and you are just about to stop the pedal starts pulsing and pushing back at you. The car still stops, but it's very disconcerting. The ABS light does NOT come on.

I assume that the ABS is being triggered, and *perhaps* there's something wrong with the sensor or its alignment. This began to happen after I had a front brake job, but whether the two are related I don't know.

My mechanic has taken the front brakes apart and put them back together and sees no problems. We've also disconnected each of the front ABS sensors in turn. Unplugging either one solves the problem, and causes the ABS light to come on.

I also note that the brakes typically chatter a little bit during the first stop of the day. This is intermittent and has been going on for years. But it's only during that first stop.

Thanks VERY much to anybody who can shed any light on this.

Steve

Reply to
splicehere
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one of the wheel speed sensors is bad, a good technician that knows how to read a service manual and use a volt/ohm meter can isolate the malfunctioning sensor.

Reply to
NissTech

Thanks very much for your help. My mechanic, who specializes in Zs and Maximas, can't figure out which sensor it is. Keep in mind that the ABS light does not come on, and the light on the ABS box next to the speakers in the trunk does not flash.

You can make the problem go away by disconnecting either of the front sensor cables. That turns the ABS light on. But disconnecting either sensor cable works equally well, so that doesn't narrow the problem down.

The problem only occurs in the last second or so of a stop, when you are releasing pressure on the brake pedal.

Thanks very much again, Steve

Reply to
splicehere
*reducing* pressure on > the brake pedal. As your foot comes up off the pedal and you are just > about to stop the pedal starts pulsing and pushing back at you. The > car still stops, but it's very disconcerting. The ABS light does NOT > come on. > > I assume that the ABS is being triggered, and *perhaps* there's > something wrong with the sensor or its alignment. This began to happen > after I had a front brake job, but whether the two are related I don't > know. > > My mechanic has taken the front brakes apart and put them back

ABS sensors in turn. Unplugging either one solves the problem, > and causes the ABS light to come on. > > I also note that the brakes typically chatter a little bit during the > first stop of the day. This is intermittent and has been going on for > years. But it's only during that first stop. > > Thanks VERY much to anybody who can shed any light on this. > > Steve

Hi,

Did you get your brakes to stop doing this? I have the exact same problem on my 93 Maxima. The pedal pushes back on my foot at the very end of a stop.

The ABS light on the dash is not on, and the led on the ABS box in the trunk is not blinking either.

It has done this a few times over the span of a couple years but then usually goes away after a day or two.

Thanks

Reply to
kirlax09

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