I've got a 1998 f-150 2 wheel drive 4.6 triton. My right front brake was dragging due the caliper not releasing. The guy put a new caliper on the right front, a new rotor on the right front and new pads on both fronts. I drove my truck for about a week and it was fine. No isses. But the last few days it has been pulling to the right really bad when I'm braking. When I put it into reverse i can feel the left front brake sticking. And when I make a complete stop I can feel it sticking a little when I accelerate again. Is my left caliper bad now? My buddy mentioned a brake line that runs to the caliper could be bad? How do I know if its the caliper or the line? I'm not a mechanic and know very very little about brakes. Also my brake pedel feels very stiff. Right after the guy fixed the right brake drag my brakes loosened up but now they are tight again.

 

Chances are the left front caliper is bad... sometimes what happens when you compress the pistons back in to accommodate new pads in an old caliper housing, there may be debris in the caliper housing that is disturbed and may or may not freeze up the piston(s) from moving in or out...

If you pull the caliper and depress the brake lightly (don't over extend the piston(s)) you'll probably notice the piston(s) is frozen... or you'll have a hard time pressing the piston(s) back in it's probably bad...

The rubber line collapsing creating a directional "check valve" is another story, if the piston doesn't appear frozen from moving out but pressing in is tough, disconnect the rubber brake hose or open the bleeder and see if pressing in is WAY easier (obviously it'll be bit easier not pushing fluid back through the system), if it is, then you may have a bad rubber brake hose... if it presses in freely but won't move out, you may have a bad hose.... it's pretty simple to check...

Steer clear of cheap calipers, yeah VatoZone has a lifetime warranty, but I've replaced 4 frozen calipers (same left side front) in the girls Subaru in a year, that's all good and well for free but do they replace the warped rotor for free? Or the smoked pads? No, unless you buy them from them as well...

You should always open the bleeder when pressing pistons back in, though most don't, but it allows the caliper to expel any debris that might hinder proper functionality of the caliper rather than push it back into the system to later be worked down to moving parts

 

I had my truck in park and It wasn't running or anything and I grabbed the left front tire and started moving the tire forward and backward causing the truck to move. I could hear the brake sticking. I did the same to the right front tire and heard no noise at all.

 

Usually when replacing brakes I always replaced both rotors at once so nothing is uneven, like A7X said, your left caliper is probably bad and possibly the rotor as well

 

Thanks guys. I'm gonna see if the guy can put a new caliper and rotor on the left side this weekend and see if it works. Thanks again!

 

It ended up being a collapsed brake hose that goes into the caliper. I just went ahead and replaced the caliper as well since I put a new one on the other side.

 

When you tore one shoe, didn't your mama always buy you two, always try and do things in pairs just to save yourself the headache of what the OP is dealing with now.