Not even my mechanic can figure this out - video attached

[vmarcial27]

I have a 2003 chevy tahoe with the following problem - the car brakes totally fine with plenty of brake life left. However when ever I am about to FULLY stop (the last 2 or 3 seconds) less then 5mph the car brings to make a noise and looks like the ABS activates. help please winter is around the corner

Video is attached so you can better understand what I am saying....you can hear the noise it makes in the video! helpppp pleases

thanks!

 

[Doubeleive]

get a new mechanic, I am willing to bet it is a bad abs sensor, either scan it for live data on the abs sensors to determine which one or just go buy a abs sensor and swap it out on the front left, if the problem still occurs swap it to the right side.
the sensors run $20-30 maybe less

could also be related to a bad wheel hub. check that by jacking up the front wheels and see if there is any play at 12 & 6 (should be none), there will be a little at 9 & 3 because of the steering.

 

[SnowDrifter]

get a new mechanic, I am willing to bet it is a bad abs sensor, either scan it for live data on the abs sensors to determine which one or just go buy a abs sensor and swap it out on the front left, if the problem still occurs swap it to the right side.
the sensors run $20-30 maybe less

could also be related to a bad wheel hub. check that by jacking up the front wheels and see if there is any play at 12 & 6 (should be none), there will be a little at 9 & 3 because of the steering.

Just adding to this: You can feel the difference between play in the steering vs. play in the hub.

Good way to do this is with 2 people. have one person grab the wheel and give it a light-medium shimmy, while you grab a hold of the cv stub and put your thumb on the spindle. The tactility in your hands far outpaces anything you can see by eye. You'll feel it, even if you don't see or hear it.

That goes for anything in your steering. Put your mitts around it

 

[swathdiver]

Need the proper scan tool to know for sure.

 

[Wylie_Tahoe]

Likely a front wheel speed sensor. Seen a ton of them where the wire strands break inside the insulation at the point they move the most steering and suspension travel. Scan too will let you see which wheel drops to 0 while the truck is still moving.

 

[Jeffwiz87]

Wheel speed sensors in the front are lifting from rust causing excessive gap from the tone ring. Replace front hubs or remove sensors and clean rust from mating surface. I agree. Get a new mechanic. I have done 100’s of these.

 

[usnret]

Had this problem with my Silverado. Speed sensor or corroded connector.

 

[bladenbullet]

usually a speed sensor that drops out to zero at very low speed...monitoring the speed sensors will almost always uncover it...