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You may be low on brake fluid or the parking brake linkage needs adjusting.
The Parking Brake
It is a mechanical means of holding the vehicle from moving. The parking brake system is separate from the hydraulic service brakes.
The parking brake pads are the same brake pads that stop your vehicle when you apply the brake petal. This is a mechanical system instead of a hydraulic one and so, yes, the parking break is needed in the event that the hydraulic system fails or in case you should have to change the tire. The last thing you want is to park on a hill and come out and find your vehicle at the bottom. Get it fixed at a reputable brake repair shop.
Get under the driver side of the suburban by the driver door and their should be a linkage that you can loosen
Chevrolet Blazer parking brake can be adjusted with the adjustment screw on the parking brake pad. The parking brake can also be adjusted with the parking brake cable.
how do you adjust parking brake
You don't necessarily have to check anything before attempting to adjust the parking brakes, but parking brakes usually need adjustment because something is wrong so here's a list of thing to check. 1st - Check that the parking brake really needs adjusting. It only has a small fraction of the effect of the service brake. If it performs as described in the owners manual, there is no need to adjust it. 2nd - Verify that the actuator (handle or pedal) operates correctly, and that the cables and the mechanical linkage appear to be intact. 3rd - Check cables for "stretched" cables with notable slack when the brake is released. Significant stretching often indicates that the cable strands are broken internally. 4th - Check for frozen mechanical linkage. Free or replace as necessary. 5th - Check for rust and debris in the drum - especially if the vehicle has rear disc brakes, and the parking brake is the miniature drum-in-hat arrangement. Clean rear discs/drums and replace as a pair if necessary. 6th - Check for missing friction material on the brake shoe. If rear disc brakes with miniature drum-in-hat parking brake shoe friction is normally very thin. Replace if shoe has no friction material. 7th - Check for broken or missing springs and hold downs. There should be springs on the brake shoe retaining pins holding the shoes to the backing plate. There should be springs on the brake shoes top and bottom to pull them together to release the brake, there may be a separate spring to release the linkage, there should be a return spring on the actuator handle or pedal to return it to the released position, it may be a wind-up spring. Replace any broken or missing springs and shoe retainers before attempting to adjust the brake. 8th - Check for a frozen brake adjuster. If the adjuster won't turn you won't be able to adjust the parking brake. Clean/replace as required. A service manual for your vehicle should include necessary information and diagrams to properly service the parking brake.
You can adjust your parking brake by turning the parking brake adjustment bolt. The parking brake adjustment bolt is located on the parking brake pad assembly.
Parking brake
The 1998 Chevy Corvette parking brake can be adjusted with the parking brake adjustment bolt. You can also adjust the parking brake cable.
The 2000 Chevrolet Impala parking brake will have an adjustment bolt on the parking brake assembly. Turn the adjustment bolt to loosen or tighten the parking brake.