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2012 300 BASE, RWD. When I brake relatively hard but not panic braking, say like coming to a stop at the bottom of a hill, when I release the brake pedal, I hear a "DOINK" or a moderate "whack" like the sound of a golf ball hitting the undercarriage.
It happens every time I release the brake after a moderate to hard stop, so I'm wondering if it's a component that could go at any brake application and send me into cross traffic.
Plunger? Pressure equalization valve?
Thanks as usual, for any and all replies.
Have a GREAT and SAFE 4th!
Frank
 

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First thing I'd check would be the caliper guide pins and bushings.

If the car's a keeper, though, and it's anywhere near needing brakes, I would take this as an opportunity to upgrade to BR5 (R/T & 300C) front brakes. Not a whole lot more labor than replacing the caliper pins, and the parts cost is very reasonable.

It's a solid performance jump, from single pistons with 210 sq in of swept area, to dual pistons and 249 sq in.
 
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