ABS Working?

Yes it is. The ABS system keeps the wheels at the braking threshold, just between locked up and not locked up. In these instances, did your brake pedal pulse like crazy?

Doc

I would bet you are hearing more of a rapid "chirp" than a squeal. The on and off pulsation may do that if the brakes are jammed hard enough.

Yes, I am getting a 'pulsation' when braking hard for an emergency stop. I assume that this is normal and that keeps it on the border line of brake lock up and not. And, Yes, what I am hearing is closer to a rapid 'chirp', then a 'squeal' I assume this is normal and my ABS is functioning properly?

My Z71 acts the same way, I assume also because it's light in the rear with out a load in the bed.

Brian

If you ever drive with someone who knows how to use real brakes they can achieve this too. You will go and look and there will be a super light tire mark with the shape of the tread on it, not just straight lines. This is because in most instances 5% of "slip" the most "grip" you can get. IE driving your tires at 105% their acceleration rate it the fastest you can get up too speed, 105% of the "maximum" braking force, turning force..... After that you are just wasting energy as you spin yer tires.

GMC Gremlin

Oh come on Gremlin, even you know better than that. A human could never do what ABS does, abs basically pumps your brakes at 1,000 times a second, no human could possibly ever do that, unless its "flash".

Kiel Uyttenhove

The Gremlin can!

Brian

lol, everytime I think of "Gremlin" I think of the movie, I hated that movie, as a kid it scared the hell out of me except for the part when they drink all these different drinks and makes them act weird. Oh well, that was off the wall, dont know why I am even posting it. Stupid........

Actually, someone who can use their brakes can stop faster without ABS than ABS can stop them. It isn't in PUMPING. You never apply your brake to the point where it locks up and you have to release.

Not that it's something *I* can do, but there are people out there good enough that clutches are just for starting the vehicle moving!

GMC Gremlin

Never been in a race car have you. It is VERY easy to learn brake modulation IF you have half a brain. Done properly you can stop shorter than ABS. ABS only helps in areas that aware and responsible driver would have avoided anyway namely, panic stops and driving faster than conditions warrant. It is a crutch, like the soccer moms who buy a 4X4 so they are "safer" in the winter. They don't know how to use it and are told that it will still allow you to take little Johnny to the game at

In short all the gadgets you can stuff in a vehicle make no difference if the person behind the wheel is an idiot.

Yes, I don't think I have ever heard it put better Steve. Gremlin I agree there are people out there, I like abs on wet roads and gravel, snow and ice its not worth a s*it. But atleast my vehicle wont skid out of control. Parents have a 04 Denali Serria with stability control, works like a charm in addition with the Quadra steer. My moms Yukon had the option I believe, but it doesnt have it since all their vehicles they buy are bought as "Demos" from the local dealership. Its hard to whip donuts with it turned on, I've also ridden in a Cadillac Eldorado with it. it does what no human could ever do, or atleast what I have seen a human try to but cant. You would need 4 different brake pedals to do so. I have always thought though with a 4x4, if you need to slow down and have it in 4WH, you can downshift the transmission into a lower gear and all 4 wheels will help slow you, where on a 2wd rear drive truck, the sob will just swing out from behind you because you only have 2 wheels slowing instead of 4. I havent tried it yet, my 4x4 has never seen a winter, maybe this year it will. Michigan winters suck!!

I would agree with you if you are talking about a consistent surface at each wheel. But if you are talking about split surfaces, like two wheels on the gravel and two wheels on the pavement...no human can modulate the two right wheels differently then the two left wheels.

Like Kiel says, you need to try a vehicle sometime that has Stabilitrak. It's quite amazing in low traction conditions and when you try to spin the vehicle around on purpose.

Ian