How can I quickly tell whether or not I have ABS brakes? It's an '04 3800 series 3. Isn't it usually on the center of the hub, between the lug nuts, ABS, if it definitely has ABS brakes? Or can I tell by looking at the master cylinder? Thanks.
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03-19-2011
How can I quickly tell whether or not I have ABS brakes? It's an '04 3800 series 3. Isn't it usually on the center of the hub, between the lug nuts, ABS, if it definitely has ABS brakes? Or can I tell by looking at the master cylinder? Thanks.
03-19-2011
put key in ignition, turn to ON< watch lights come up on dash, look for ABS light, if its on your car the light will come on.
03-20-2011
The only models 04+ that don't have ABS as far as I know were the base models.
Originally Posted by W-Body Store
03-20-2011
Thanks. It's my daughter's car, so I'll have to wait till I see her again to check. It's an '04 grand prix gt 3800 series 3. So, I don't know if that's the base model or not. But I'll check that light. I noticed that her brakes needed changed, so I wanted to know before I started the job.
03-20-2011
pop the hood.
look at the brake booster, then the master cylinder.
if the brake lines come out of that and into another box then you have ABS, if they just head on under the car, no abs.
having ABS wont change the brakes that came on it.
03-20-2011
It won't change the brakes, but it will change how they're bled, won't it?
03-20-2011
not really.
you shouldnt have to bleed the ABS module unless you are removing the steel brake lines.
03-20-2011
Dont open the bleeders then you dont have to bleed the brakes.
03-20-2011
Ok. so after you depress the brake cylinders with a c-clamp, change the brake pads, pump the brake pedal until it's firm, and you're good? Car has disc brakes on front and back, not that it matters. By the way, if they happen not to be ABS, I will have to bleed them, right? On my other cars I did. Was I wasting my time?
Last edited by quickster; 03-20-2011 at 09:52 PM. Reason: left something out
03-20-2011
Yup, dont have to open the bleeder.
03-20-2011
Sorry TheOtherNick, I edited. Did you see it?
03-20-2011
If you never opened the bleeder you should be fine.
03-20-2011
yeah dont open the bleeder and push the pistons in. Also note the rear pistons screw in on 04 plus cars.
03-20-2011
Thanks for staying with me on this. Don't mean to drag this on, but when I do the rear brakes, do I then screw in the pistons instead of depressing them? This is an '04. Also, how does the parking brake work on disc brakes, and does anything have to be done to these when changing brake pads, adj., etc. ?
Last edited by quickster; 03-21-2011 at 11:55 AM. Reason: left something out
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