I recently lifted my front wheels and noticed passenger front wheel was dragging/locked, I replaced the caliper and hose, now it spins freely. Here's the kicker now my driver side is locked before it was fine it spun freely but soon as I did the service I mentioned to the passenger side the driver front caliper LOCKED!

So I know it can't be the caliper nor the hose, I am thinking when I bled the brakes dirt must of gotten in the driver side caliper, therefore causing this mishap.

share your inputs please.

 

Did you check the pins for free movement?

 

the drivers side?

if so no, there wasn't a need to because before I serviced the passenger it was fine no drag whatsoever. The drivers side locked after I did the service, I think during the bleeding process gunk caused the driver wheel to lock.

I'm going to re flush all 4 wheels again, if that fails I will get a new caliper.

 

Is it a constant drag or do certain positions drag? I'm asking about rotor runout.

 

the rotor run out is fine.

When I lift the car and suspend the drive wheels, driver front has zero rotation, The passenger front spins without interruption which it should because I sericed it.

The driver wheel only moves when throttle is applied, once I stop it remains stationary

 

Differential bias. Diff transmits power to the wheel with the least resistance, normally if both wheels are off the ground it tends to favor the passenger's side for whatever reason. Now if that caliper was seized it will obviously create more resistance than the other side so it will transmit power to the driver's wheel. Now that the extra resistance isn't there it's transmitting power to passenger's side again.

Put the car in neutral and spin the wheels, if they turn freely then don't worry about it.

 

I did try spinning the driver side wheel and it required much effort to spin.

I think i'll post a video to demonstrate.

here's another thing before I replaced the caliper and brake hose on the right front wheel, I checked again to confirm my suspicions that the right front wheel was dragging and GUESS WHAT! it was spinning freely but last week when I checked it was indeed dragging and I received the same results weeks prior.

 

The only other thing I can think of besides seized caliper or slide pins would be a bad flex hose on that side, sometimes brake fluid gets between the inner and outer layers and does weird stuff like that.

 

I haven't checked to see if my rears are also dragging, let's hope they aren't.