Re: parking brake goes down very easeyfeels like no...
Is the truck manual? if yes there is a recall for it. I can send you that if you need it. if not. So the parking brake pulls on a couple of cables and then pulls on the brake shoe in the drum. I would take the drum off and then have someone push down on the parking brake and then release it while puling back up on the parking brake as you watch what is happening with the shoes. if they stay applied most likely you have a bad cable. disconnect and pull on each cable which ever one does not move is the problem
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Release hand brake. Pull it again. While feeling for the normal tension have an assistant listen at the rear wheels to see if the brakes are moving and releasing when you release the hand brake. Possible causes:
-binding or stuck cable
-broken parking brake handle ratchet mechanism
-seized calipers, or if drum brakes faulty drum brake hardware/springs
Your car should have an E-brake engage/release lever. Please inspect the push button on the end of the lever. Does the button depress and release correctly? My guess is that the lever needs to be repaired or replaced. Maybe the internal spring has broke and the button wont release. If the button doesn't release, the ratchet wont engage. Write back and let me know what you found or if you have other questions, good luck.
Foot Park Brake...
There should be a release lever(not the main release) up at the top of the park brake arm, under the dash. Its small, 1.5 to 2 inches long. I recommend using a screwdriver to "flip It", keeping your fingers and hand and your face for that matter, away from the arm. It is spring loaded and will release/move very fast. Also it could just be that someone unitentionally stepped on the pedal really hard, and it will take the same amount of foot pressure to release it while pulling on the release handle.
Hand Park Brake...
Again the same principle applies. It will take the same pressure applied to release it. Push in ******* the release while pulling up ******* the handle. This one can also be released by using a screwdriver to pop the the locking tab.
Check the parking brake cable to make sure it is moving freely and allowing the brakes to completely release when you pull the release lever. Sometimes dirt and rust will lock the cable. In this case, the parking brake pedal will still sit on the switch even though it is unlocked because the spring can't pull it and the cable back to the off position.
Place parking brake lever in -full released- position.
Raise and support vehicle.
Remove plug in parking brake shoe support to access adjuster star-wheel.
Through the access hole, rotate the adjuster star wheel in the following direction to expand the shoes outward against the drum:
Left brake - Rotate star-wheel toward rear of vehicle.
Right brake - Rotate star-wheel toward front of vehicle.
Using an appropriate tool, turn adjuster star wheel until wheel will not rotate (dead lock).
Back off adjuster six detents (teeth).
Rotate wheel, checking for light drag. If drag is too heavy, continue to back off adjuster one detent at a time until light drag is present. Do not back off star-wheel more than 17 detents from wheel lock.
Install access plug.
Adjust opposite wheel parking brake shoes using same method.
Apply and release parking brake lever once to ensure proper operation of parking brakes.
Removal & Installation
The following procedure may be used to remove shoes on either side of the vehicle.
Lock out automatic adjuster in parking brake lever.
Raise and support vehicle.
Access and remove rear hub and bearing.
Remove parking brake cable bolt at knuckle.
Completely back off parking brake shoe adjustment.
Remove parking brake shoe adjuster spring.
Remove shoe adjuster.
Remove upper brake shoe hold-down clip and pin.
Remove lower brake shoe hold-down clip and pin.
Remove upper and lower shoes with return spring from shoe actuator.
Remove return spring from shoes.
Fig. View of the actuator (1), support (2), adjuster spring (3), return spring (4), caliper adapter (5), shoes (6), hold-down clips and pins (7) and adjuster (8)
Install return spring between upper and lower shoes.
Before installing shoes on actuator, make sure actuator hooked to rear cable is positioned with word -UP- facing outward.
Install upper and lower shoes with return spring on shoe actuator located on parking brake cable.
Install lower brake shoe hold-down pin through rear of support and lower shoe, then install hold-down clip.
Install upper brake shoe hold-down pin through rear of support and upper shoe, then install hold-down clip.
Install shoe adjuster. Place end of adjuster with star wheel upward.
Install parking brake shoe adjuster spring.
Install bolt securing parking brake cable to knuckle and tighten bolt to 21 ft. lbs. (28 Nm).
Using Brake Shoe Gauge, Special Tool C-3919, or equivalent, measure inside diameter of parking brake drum portion of rotor.
Place Gauge over parking brake shoes at widest point.
Using adjuster star wheel, adjust parking brake shoes until linings on both park brake shoes just touch jaws on gauge. This will give a good preliminary adjustment of parking brake shoes, before a final adjustment is made at end of this procedure.
Install hub and bearing with wheel speed sensor as well as all components necessary to access it.
Unlock automatic adjuster in parking brake lever.
Perform final adjustment of parking brake shoes
This vehicle is equipped with permanently sealed rear wheel bearings. There is no periodic lubrication or maintenance recommended for these units.
Removal & Installation
Raise and support vehicle.
Remove wheel mounting nuts, then tire and wheel assembly.
If equipped with AWD:
Remove cotter pin, nut lock and spring washer from half shaft.
While a helper applies brakes to keep hub from turning, remove hub nut and washer.
Remove brake caliper and rotor from hub and bearing assembly.
Fig. Hub assembly
Disconnect vehicle wiring harness connector at wheel speed sensor connector.
Unclip wheel speed sensor connector from spare tire mounting support.
Disconnect two sensor cable routing clips on rear suspension crossmember.
Disconnect two sensor cable routing clips along toe link.
Disconnect sensor cable from bracket on brake support.
Completely loosen, but do not remove four bolts fastening hub and bearing in place. Once loosened from threads in hub and bearing, push bolts up against rear of hub and bearing to keep brake support plate in place when hub and bearing is removed.
Fig. Rear hub and bearing mounting bolts
Pull hub and bearing off knuckle and half shaft (if equipped with AWD), then thread wheel speed sensor cable through hole in brake support plate as it is removed with hub and bearing.
Position hub and bearing bolts though rear of knuckle and parking brake support just enough to hold support in place as hub and bearing is installed.
Install hub and bearing by first feeding end of wheel speed sensor cable through hole in bottom of parking brake support. As this is being done, if equipped with AWD, slide hub and bearing onto half shaft. Place hub and bearing through brake support, onto knuckle, lining up mounting bolt holes with bolts and placing wheel speed sensor head at bottom.
Install four bolts fastening hub and bearing in place. Tighten mounting bolts to 60 ft. lbs. (81 Nm).
Place wheel speed sensor cable routing grommet into bracket on parking brake support.
Route wheel speed sensor cable along toe link and rear suspension crossmember connecting routing clips where shown.
Connect vehicle wiring harness to wheel speed sensor connector.
Install brake rotor and caliper.
If equipped with AWD:
Install washer and hub nut on end of half shaft.
While a helper applies brakes to keep hub from turning, tighten hub nut to 180 ft. lbs. (244 Nm).
Install spring washer, nut lock and cotter pin on end of half shaft.
Install tire and wheel assembly. Install and tighten wheel mounting nuts to 100 ft. lbs. (135 Nm).
Raise and support the vehicle and remove the wheel and brake drum from the wheel to be worked on.
If you have never replaced the brakes on a van before and you are
not too familiar with the procedures involved, only dissemble and
assemble one side at a time, leaving the other side intact as a
reference during reassembly.
Install a clamp over the ends of the wheel cylinder to prevent
the pistons of the wheel cylinder from coming out, causing loss of
fluid and much grief.
Contract the brake shoes by pulling the self-adjusting lever away
from the starwheel adjustment screw and turn the starwheel up and back
until the pivot nut is drawn onto the starwheel as far as it will come.
Pull the adjusting lever, cable and automatic adjuster spring
down and toward the rear to unhook the pivot hook from the large hole
in the secondary shoe web. Do not attempt to pry the pivot hook from
Remove the automatic adjuster spring and the adjusting lever.
Remove the secondary shoe-to-anchor spring with a brake tool.
(Brake tools are very common implements and are available at auto parts
stores). Remove the primary shoe-to-anchor spring and unhook the cable
anchor. Remove the anchor pin plate.
Remove the cable guide from the secondary shoe.
Remove the shoe hold-down springs, shoes, adjusting screw, pivot
nut, and socket. Note the color of each hold-down spring for assembly.
To remove the hold-down springs, reach behind the brake backing plate
and place one finger on the end of one of the brake hold-down spring
mounting pins. Using a pair of pliers, grasp the washer type retainer
on top of the hold-down spring that corresponds to the pin which you
are holding. Push down on the pliers and turn them 90° to align the
slot in the washer with the head on the spring mounting pin. Remove the
spring and washer retainer and repeat this operation on the hold down
spring on the other shoe.
Remove the parking brake link and spring. Disconnect the parking brake cable from the parking brake lever.
After removing the rear brake secondary shoe, disassemble the
parking brake lever from the shoe by removing the retaining clip and
Assemble the parking brake lever to the secondary shoe and secure it with the spring washer and retaining clip.
Apply a light coating of Lubriplate®, or equivalent, at the points where the brake shoes contact the backing plate.
Position the brake shoes on the backing plate, and install the
hold-down spring pins, springs, and spring washer type retainers. On
the rear brake, install the parking brake link, spring and washer.
Connect the parking brake cable to the parking brake lever.
Install the anchor pin plate, and place the cable anchor over the anchor pin with the crimped side toward the backing plate.
Install the primary shoe-to-anchor spring with the brake tool.
Install the cable guide on the secondary shoe web with the
flanged holes fitted into the hole in the secondary shoe web. Thread
the cable around the cable guide groove.
Install the secondary shoe-to-anchor (long) spring. Be sure that
the cable end is not cocked or binding on the anchor pin when
installed. All of the parts should be flat on the anchor pin. Remove
the wheel cylinder piston clamp.
Apply Lubriplate®, or equivalent, to the threads and the socket
end of the adjusting starwheel screw. Turn the adjusting screw into the
adjusting pivot nut to the limit of the threads and then back off 1
Interchanging the brake shoe adjusting screw assemblies from one
side of the vehicle to the other would cause the brake shoes to retract
rather than expand each time the automatic adjusting mechanism is
operated. To prevent this, the socket end of the adjusting screw is
stamped with an "R" or an "L" for "RIGHT" or "LEFT". The adjusting
pivot nuts can be distinguished by the number of lines machined around
the body of the nut; one line indicates left-hand nut and two lines
indicate a right-hand nut.
Place the adjusting socket on the screw and install this assembly
between the shoe ends with the adjusting screw nearest to the secondary
Place the cable hook into the hole in the adjusting lever from
the backing plate side. The adjusting levers are stamped with an R
(right) or a
(left) to indicate their installation on the right or left-hand brake assembly.
Position the hooked end of the adjuster spring in the primary
shoe web and connect the loop end of the spring to the adjuster lever
Pull the adjuster lever, cable and automatic adjuster spring down
toward the rear to engage the pivot hook in the large hole in the
secondary shoe web.
After installation, check the action of the adjuster by pulling
the section of the cable guide and the adjusting lever toward the
secondary shoe web far enough to lift the lever past a tooth on the
adjusting screw starwheel. The lever should snap into position behind
the next tooth, and release of the cable should cause the adjuster
spring to return the lever to its original position. This return action
of the lever will turn the adjusting screw starwheel one tooth. The
lever should contact the adjusting screw starwheel one tooth above the
centerline of the adjusting screw.
If the automatic adjusting mechanism does not perform properly, check the following:
Check the cable and fittings. The cable ends should fill or
extend slightly beyond the crimped section of the fittings. If this is
not the case, replace the cable.
Check the cable guide for damage. The cable groove should be
parallel to the shoe web, and the body of the guide should lie flat
against the web. Replace the cable guide if this is not so.
Check the pivot hook on the lever. The hook surfaces should be
square with the body on the lever for proper pivoting. Repair or
replace the hook as necessary.
Make sure that the adjusting screw starwheel is properly seated in the notch in the shoe web.
Heavy Duty Systems
Raise and support the vehicle.
Remove the wheel and drum.
Remove the parking brake lever assembly retaining nut from behind the backing plate and remove the parking brake lever assembly.
Remove the adjusting cable assembly from the anchor pin, cable guide and adjusting lever.
Remove the brake shoe retracting springs.
Remove the brake shoe hold-down spring from each shoe.
Remove the brake shoes and adjusting screw assembly.
Disassemble the adjusting screw assembly.
Clean the ledge pads on the backing plate. Apply a light coat of
Lubriplate®, or equivalent, to the ledge pads (where the brake shoes
rub the backing plate).