Pontiac Problems? Ask a Mechanic for Answers ASAP
Hi Im David, thanks for visiting the site and sorry you're having these issues. the Pontiac Torrent and Aztec are in the top 10 list of worst vehicles ever so I feel your pain. let me pull up information for you and we will try to get this figured out.
This is almost always caused by an erratic signal from one of the wheel speed sensors.. usually one of the front ones. Inspect the harnesses near each wheel hub. Turning the wheel all the way to each side when inspecting will help. I've seen the harnesses come out of the retainer and rub on the wheel hub causing this. The only other way is with a scan tool while monitoring wheel speed sensor data and looking for an erratic signal.
do you still need assistance?
unless you have a scan tool that can read live abs data then you wont be able to do it yourself.a tire shop is not the place to go. you will need to take it to a repair shop.
without the proper tools/equipment no one can help you with the vehicles problem. take care and good luck to you.