Weird brake behavior 1998 Dakota

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dapecota - 20 Jan 2006 11:31 GMT

Hi,

My Dakota's ABS brakes have the following odd behavior:

When the vehicle is about to stop the brakes rapidly pulse, click, drop
pressure, which is quickly recovered when a servo motor kicks in with a
loud buzz. It only happens when you are just about stopped (very low
speed). The brakes are smooth and stop normal at all other times. It
cannot be normal operation for a brake system. No warning lights come
on at any time.

Has anyone had this behavior before? Any ideas on what is wrong?

Dean

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TBone - 20 Jan 2006 13:30 GMT

That sounds like a possible failing wheel sensor making the ABS believe that
you have a wheel locking up.

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> Hi,
>
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>
> Dean

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Frank Boettcher - 20 Jan 2006 16:35 GMT

>Hi,
>
[quoted text clipped - 10 lines]
>
>Dean

Yes. It was a failed speed sensor located on the differential
housing, however for confirmation you can have the dealer put it on
the diagnostic and it will confirm that as the problem rather than any
other component of the anti-lock brake system.

Is your speedometer becoming somewhat erratic? no indication at low
speed then jumping up to the correct speed? Another sympton of the
sensor failure.

Frank

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dapecota - 21 Jan 2006 00:18 GMT

I did not really look at the speedometer. I will now.

Thanks,

Dean

> >Hi,
> >
[quoted text clipped - 21 lines]
>
> Frank

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mr burns - 21 Jan 2006 04:36 GMT

if it is the sensor, you should be able to pull the fuse for the abs
and the problem will go away. I did this when the sensor ring split
on my voyageur van. the brakes preformed as normal brakes without the
abs after removing the fuse.
try at your own risk thou, i don't know what will happen if you pull
it on your truck. I would try it slowly in my driveway first.

good luck
mr. burns.

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