I just changed my brake pads but they are still making noise when i pull off what can the problem be

check that the outside pad is still in the correct position as they can become dislodged when putting over the disc rotor.

Did it make the noise and THEN you changed the pads? Or did you change the pads and then it started making the noise?

If it started after changing the pads, try sanding the pad surfaces lightly with sandpaper. If they are too smooth, it will cause a squeak.

It's most probably the wear indicators on the brake pads. They make an irritating low pitched intermittent squeal or groan each time they contact the turning rotor. The noise goes away when you step on the brakes. Check the pad wear by pulling off a wheel and looking through the slot on the circumference of the caliper. You should have even wear on both pads, and at least an eighth of an inch of pad left. If not even you'll need to pull the caliper, and clean and lube the pins it slides on. If worn or uneven, replace them; it doesn't pay to try and wait for pads to wear down any farther, because you'll probably end up scoring the rotor.

Are your brake pads worn? They will have a small metal tab on one of the pads on each side. These are referred to squeeker tabs. They let you know when your pads are worn enough to need changed before you get metal to metal part failure. They are designed to barely scrape against the rotor when the brakes are not applied and make an annoying noise. I would look again and make sure all rear pads are in good shape. If they are you might clean the brakes, sometimes a piece of dirt or debris can make the same noise. If you have one pad that is worn more than the rest make sure you clean and grease the caliper slide pins when you change the pads. Actually, you always want to make sure you clean and grease the slides when you do a brake job.

When you step on the brakes, the pads vibrate. It may be you didn't put the little gaskets, or anti-squall stuff on the BACK of the pads.
If your "kit" didn't include it, get some copper lube and apply to the back of the pads.
I know, means you have to pull the pads but it's either that or live with the noise.
Have fun:
Rick

When worn out brake pads have a piece of metal contacting the discs to indicate that you need to change your brakes.

Just look for worn pads, I bet you'll need to change your front brakes .

Did you bump the ABS pickup at the wheel hub when you changed the brakes? Or are the wires maybe nicked? The noise is normal and might go away depending on the brake pad type you replaced with. The ABS problem might be caused by you.

your brakes are not adjusted or the brake pads are worn out. check and adjust.

it could be because they are dirty. also the noise could be the back brakes. if its a squeaking noise it could be that they are dirty or that they are cheep brake pads and for the first couple of weeks they squeak. also when you got your breaks changed did the break shop cut the rotors because that cleans them up and makes the rotors like new.

Some noise is normal for all disc brake system, they have wear indicators that touch the rotor and make a very loud and annoying noise, if this is your case then you need new pads, remember to have the rotor checked for thickness and abnormal wear, all of that can cause brake abnormal noise, if you do replace the pads use quality parts from Know suppliers such as WAGNER and BENDIX, use there new quiet line of brake pads, they produce far less squeak than cheap no name pads that many chain parts stores sell, remember that safety is an issue when changing brake pads, use jack stands and block the wheels.