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Q: I didn't bleed the brakes before i removed the bolt

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I was changing the brake pads and i cant put the bolt back in the caliper. Theres a cylinder that won't retrack.
My car has an automatic transmission.

Your front brake calipers would need the piston pushed back using a C-clamp and the old brake pad. If the piston will not push back relatively easily, then you may have a seized caliper piston, or a bad flexible brake hose attached to it which is not letting brake fluid return to the master cylinder.

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