02 5.3L V 8 Problems w/ABS system

biddy

02 5.3L V 8 Problems w/ABS system

Unread post by biddy » Mon Aug 02, 2010 6:35 pm

I just replaced the brake pads, rotors, calipers, hoses, brake pedal switch and every time I step on the brakes, the ABS system kicks in. Does anyone know what else may be causing this?? The mechanic has scanned the vehicle and NO codes are showing up. HELP!!

MeccBoy

Re: 02 5.3L V 8 Problems w/ABS system

Unread post by MeccBoy » Tue Aug 03, 2010 12:11 am

All these parts you replaced have nothing to do with the ABS.
Most likely you have a problem with one of the front wheel speed sensors, or the wiring for a sensor.
Most times these will not set a code, because the fault happens too quickly.
We cant even see it on a live data stream of the front wheel speeds most of the time.
The 2 wires for either front sensor are inside the black plastic shielding. They tend to break. The only way to tell is to cut open the shielding.
This must be done very carefully, because you can cause more damage to the wires inside, and think you found a bad wire- but actually you just damaged it, and it is not the original problem.

Buick1985
Posts: 1
Joined: Sat Sep 05, 2015 1:14 pm

Re: 02 5.3L V 8 Problems w/ABS system

Unread post by Buick1985 » Sat Sep 05, 2015 1:18 pm

The problem is your wheel bearings.
I had change the hub assembly with new after market to ensure bearings are in correctly.

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