How does one adjust the park brake on a 2003 Duramax 2500HD. All four wheels have disk brakes. I have traced the cable out and there is no adjustment on the cable except possibly within the rear brake assembly itself or at the emergency brake peddle in the cab of the truck.
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There is a cable that you adjust. If you pull the boot down around the base of the hand brake you will find that there is a cable with a threaded rod, turn the nut on the rod clockwise to tighten the brake, the proper adjustment is to have the brake handle start to engage the park brake when it clicks three times, if you are unable to reach this then you may have to adjust the part brake shoes at rear, there is a small slot at the backing plate of the brake at each well, there is be a little oval rubber plug in it, remove the plug and look inside you will see a little wheel with teeth on it, move that wheel with a flat blade screwdriver in a downward clockwise direction, with the wheel off the ground and the park brake off, when you fell just a little drag on the wheel the adjustment is correct, then recheck park brake adjustment as outlined above
You cannot adjust the cables on a minivan manually. the tension is
automaitcally adjusted by the self adjuster on the pedal release.
The park brake cables on this vehicle have an automatic self adjuster
built into the park brake pedal mechanism. When the foot operated park
brake pedal is in its released (upward most) position, a clock spring
automatically adjusts the park brake cables. The park brake cables are
adjusted (tensioned) just enough to remove all the slack from the
cables. The automatic adjuster system will not over adjust the cables
causing rear brake drag.
Due to the automatic adjust feature of the park brake pedal, adjustment
of the parking brake cables on these vehicles relies on proper drum
When the park brake pedal is applied the self adjuster is by-passed and the pedal operates normally to engage the park brakes.
When a service procedure needs to be performed on the park brake pedal
or the park brake cables, the automatic self adjuster can be manually
locked out by the service technician.
you mean parking brake cable? loosen parking brake cables put drums on , and adjust shoes till they lightly drag, now apply brakes a few times and check the adjustment again, if all ok, now adjust park brake cables, you want to adjust so park pedal goes 5-8 clicks till the wheels are "locked up" and the wheels spin free with the park brake off
The adjuster is just like on a car with drum brakes. It can be adjusted with the wheels still on the truck, but if yours is out enough that it doesn't work, an inspection is warranted. Axle seal failure is common and will soak the shoes.
Jacked both rear wheels off ground, and while slowly spinning wheel, tighten the star-wheel adjuster until you just hear and feel brake drums rubbing, then loosened slightly. There's a plastic dust cover about 1/4" X 1" that you remove, and use a drum brake adjuster tool.
The driverside access hole is below axle, easily accessable. To tighten driver side rear parking brake, turn star-wheel adjuster down.
The passengerside access hole is found above axle, and difficult to see. Removed pass side wheel and used an inspection mirror. To tighten passenger side rear parking brake, turn star-wheel adjuster up.
Good luck and hope this helps. Oh and the other thing to is that if you do smell axle fluid around the wheels and see oil leaking from the drum area. Then you have a axle wheel seal and or bearing gone bad too.
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.
Ahh they are a real pain in the **** you need to remove the rear wheels calipers caliper anchors then the rotors and then you can adujust the park brake shoes up just untill you feel a bit of drag on the rotor then back them off a bit. Other wise you need to buy the tools to check the adjustment bottom line they are a pain