Mystery “Clunk”, ABS Light flashes, brakes lock briefly?

cognus

New member
I have a very strange problem that has occurred maybe five times in the last year or so but two were in close sucession about a week apart. All incidences had pretty much the same setup. Vehicle is parked, I hop in, start, backup out of parking area, apply brakes, shift to “D” and apparently when I release brake pedal the T4R bangs to a full hard stop with a scary “CLUNK!”, The ABS/Traction lamp goes on briefly, I hear a ticking sound like ABS released, then goes normal. This all happens in about one long second, maybe 2. It’s so startling that I have a hard time remembering back through that second of event to try guessing the cause.

I figure I’m not alone, so if you know the cause, pls share.

This has happened both on cold start first of day, and warm later in day

??
 
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ABS wheel speed sensor?? Does this happen irrespective of weather conditions?


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I’ve had similar issues in the past usually while turning out of a parking space or while starting to back up while turning. I unplugged wheel sensor kind of cleaned it out then plugged it back and the issue stopped for a long time but now it’s back just haven’t replaced the part yet.
 

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