ABS kicks in at low speed, dry pavement, 95 Tahoe 4x4

[MotoCARR]

Just picked up a new to me 1995 Tahoe with 205k.

Example scenario: Coming to a stop at a light, 100% dry pavement, about 5mph mark.

If I brake early and apply light pressure, ABS does NOT kick in.
If I brake late and apply heavy pressure, ABS does NOT kick in.
If I brake at medium/normal pressure, ABS does kick in a few clicks.

I was told that the front wheel bearings had been replaced. Looking at Chilton manual online, I didn't see anything ABS related in the removal/installation process, but they only had 2WD listed.

Is there a difference when doing them on a 4x4 and or is it possible to just replace a sensor? Unfortunately the online manual only has text descriptions and no pictures!

 

[OR VietVet]

See answer in Tahoe Forum

 

[Jerky Arm Ape]

The 2wd has bearings in the brake rotor that slide onto a spindle.

A 4wd actually has a hub bearing assembly that is a seperate unit.

There is a wheel speed sensor that bolts into the bearing assembly so the abs module can read and compare the speed of each wheel in the front.

 

[Not_Reqd]

Mine does this.

"No abs signal left or right front" Sooo I need a pair of hubs.

 

[OR VietVet]

Or sensors or tone ring problem causing what you feel.