Mustang parking brake won't release tension on rear brakes
I replaced both rear disc brake assemblies. After engaging parking brake, it won't release at rear brake assembly when you release hand brake tension. I have to manually go under car and hammer pivots to let brakes release. The release springs are brand new on both assemblies. Any idea why they won't release?
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Re: Mustang parking brake won't release tension on rear...
Since the new pads are alot thicker than the old ones,the brake needs to be set properly.
something is not right for sure.
the retainer for the park brake cable may be not in the right spot.there is two places it can fit.
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if its rear drum brakes, you probably have a sticking wheel cylinder. or a brake adjuster that's adjusted too tight. If its four wheel disc brakes it's probably the emergency brake cable/ tension mechanism not releasing.
Okay, this is the step that says how to REMOVE the cable:
Remove retaining clip from the parking brake rear cable at the disc brake caliper. Release the tension from the parking brake cable and disengage the cable end from the parking brake lever on the brake caliper.
And this is the step that says how to INSTALL the cable:
Connect the end of the parking brake cable to the parking brake lever on the disc brake caliper.
YOU NEED TO ADJUST REAR PARKING BRAKE AT THE LEVER.FIRST OF ALL YOU NEED TO BLOCK FRONT WHEELS.THEN RAISE THE REAR OF THE VECHICLE.SUPPORT WITH JACK STANDS.MAKE SURE YOU ARE ON HARD LEVEL SOLID GROUND WHEN USING JACK STANDS.AFTER RAISING THE CAR SET PARKING BRAKE 1 CLICK TOWARD ENGAGEMENT.REMOVE FLOOR CONSOLE.TIGHTEN THE ADJUSTING NUT UNTIL THE PARKING BRAKES DRAG SLIGHTLY WHEN THE REAR WHEELS ARE TURNED.RELEASE THE PARKING BRAKE COMPLETELY.CHECK IG PARKING BRAKES DRAG WHEN REAR WHEELS ARE TURNED.READJUST IT NECESSARY UNTIL THERE IS NO BRAKE DRAG FROM THE PARKING BRAKES.
Rear Disc Brake Caliper
Rear Disc Brake Rotor
Push Nut (2 Req'd each side)
Rear Brake Anti-Lock Sensor Indicator
Nut (4 Req'd)
Rear Wheel Disc Brake Adapter
Inner Wheel Bearing Oil Seal
Bolt (4 Req'd)
Rear Wheel Bearing
Disc Brake Caliper Locating Pin
Tighten to 27-54 Nm (20-40 Lb-Ft)
Tighten to 26-35 Nm (19-26 Lb-Ft)
The automatic (vacuum) release-type is standard equipment on all vehicles.
The automatic vacuum-type parking brake system contains the following features:
A parking brake release control motor (2A843) with mounting bracket bolted to the parking brake control .
The vacuum-actuated diaphragm within the parking brake release control motor which is connected by a rod to the upper end of the parking brake release vacuum hose (2B653) .
The parking brake release vacuum hose which connects the parking brake release control motor to the engine manifold through a vacuum release switch at the steering column tube (3514) .
The parking brake release control motor which is actuated to release the parking brake whenever the engine is running and the transmission is in a forward-driving gear.
The automatic parking brake control which has a manual release feature that releases the foot parking brake control by applying force to the parking brake control pedal in the "apply" direction to the point of initial application.
The parking brake control will return to the full-release position after removing the force.
Hope this helps. This is out of the factory manual. Let me know if this works for you.
NOTE: Tensioner adjustment is only necessary when the tensioner, or a cable has been replaced or disconnected for service. When adjustment is necessary, perform adjustment only as described in the following procedure. This is necessary to avoid faulty park brake operation.
Fully back off cable tensioner adjusting nut at equalizer to create slack in cables.
Remove rear wheel/tire assemblies. Remove brake calipers and rotors.
Verify park brakes are in good condition and operating properly.
Verify park brake cables operate freely and are not binding, or seized.
Check park brake shoe adjustment.
Reinstall rotors and make sure rotors turn freely.
The parking brake cables may be stretched and in need of adjustment. Follow the cables along to a nut. Then you can tighten the adjusters up on both sides until you have the proper tension. Also make certain none of the brackets are bent or broken that the cables ride through.