2006 torrent brakes make a howling or chattering noise however you want to say it at slow stops only on dry pavement feels like antilock issue but light not coming on .Brakes only 6 months old.it is very annoying the only thing i notice is vehicle doesnt quite stop right 4 the 2 or three seconds it is doing this.By slow stops i mean abt. 5 mph or less. Thanks dave

The symptoms you are describing sound like the brake system is going into antilock mode. If you are driving under wet or slick conditions, this is normal operation and it may not "feel" like it to you, but you are actually stopping in the shortest distance possible for the conditions.

On the other hand...If it is doing this on dry pavement and you are not driving like a maniac, this would be what is commonly called "FALSE antilock mode". This happens when the antilock brake computer "thinks" that one of the wheels is locking up when it is very apparent to the vehicle operator that there is no way a wheel should be locking up or skidding. This ia almost always caused by a weak or defective wheel speed sensor.

I have had a couple of cases on Ford trucks where the front wheel bearings had been changed with aftermarket bearing assemblies and this is when problem either started, or got worse. Upon inspection of the vehicle I found that these new bearing assemblies came with a new wheel speed sensor already installed. For some reason, the manufacturer installed the sensor with a spacer under it??? (like a metal gasket) Removing the sensor and discarding the spacer fixed the vehicles.

put on computer to find out what is the problem could be wheel speed sensor

Linda, if the wheels where on something slippery, even gravel, they may have triggered the antilock brakes system. When this happens, you will get a short sensation of "the brakes not grabbing".
the noise it makes is a chattering and you will fell a rapid pulsation in the brake pedal. you will feel this more if you Hit the brakes pretty quick or pretty hard. It is normal operation of the antilock brakes.

Mine is doing the same thing!! I am having so many issues with that, gas sloshing, not cranking on the first try and odometer light going out!

It Sounds Like Your ABS Channels, Its A Separate Hydraulic Circuit That Feeds Out To One Or More Wheel Cylinders Or Caliper Pistons.Anti-Lock Brake Systems Can Have From One To Four Channels.

They are doing their job. They are designed to prevent skidding, either in summer or in snow.

First, is the ABS light on? Does it come on when it's doing it? Make sure the brake fluid is full, and the brakes are still servicable, ie, pads still have meat on them. If so, the abs control module or a speed sensor might be on the way out. This is a safety issue, and I would recommend getting the truck to a good mechanic to have it checked out.

plug it back in and bleed your brakes dude.

You have a speed sensor with excessive air gap. More likely a front one. Is it 2 or 4 wheel drive?

it would not hurt to check rear tire wear due to misalignment
cupped tires will cause a faulty bearing type noise or humming.