| Subject: | Parking Brake May Not Hold (Reconnect Parking Brake Cable at Rear Brake Assembly) |
| Models: | 2005 Chevrolet Silverado 1500 Series Pickup |
| 2005 GMC Sierra
1500 Series Pickup |
| with Rear Drum Brake System (RPOs JF3, JF7) |
Built Prior to VIN Breakpoint :
Assembly Plant
| VIN
|
Oshawa
| 51124736
|
Fort Wayne
| 5Z126828
|
Pontiac
| 5E113531
|
Condition
Some customers may comment that the parking brake may not hold under extreme
use.
Cause
The right rear parking brake cable may not be fully connected at the rear drum
brake assemblies.
Correction
Follow the service procedure below for diagnosis and repair of this condition.
DO THIS
| DON'T DO THIS
|
Reinstall the rear parking brake cable into the rear parking brake assembly.
| DO NOT replace parking brake system components.
|
- Park the vehicle on level ground with the engine off and the key removed
from the ignition.
| • | Vehicles with automatic transmissions, place the shifter in the PARK position. |
| • | Vehicle with manual transmission, place the vehicle in GEAR. |
- Fully apply and release the parking brake cable 6 times. Leave the parking
brake in the released position.
- Locate the parking brake equalizer on the left (drivers) side outboard
frame rail.
Important: If the equalizer plate is vertical or near
vertical as shown above, both parking brake cables ARE correctly installed at the
rear brake assemblies and no further repair is required with this bulletin.
- If the equalizer plate is vertical or near vertical as shown above, both parking
brake cables ARE correctly installed at the rear brake assemblies and no further repair
is required with this bulletin. For additional diagnosis of the rear parking brake
system, refer to Park Brake System Diagnosis w/Rear Drum (SI Document ID #1471452).
- If the equalizer plate is NOT or near vertical and
is tilted/slanted one way or the other as shown above, then one parking brake cable
is not connected correctly at the rear brake assembly. If the above is found, one
of the cables will have little or no tension. The cable with little or no tension
is the disconnected cable.
- Disconnect the no tension cable from the equalizer plate.
- With either hand, grab the disconnected cable and rapidly push the cable
back into the cable housing. This will allow the parking brake cable to attach at
the rear brake assembly.
| • | When the cable is properly attached to the rear brake assembly, there
will only be a small amount of slack or play in the cable. |
| • | If the cable can still be moved fore and aft like before, the cable is
not connected correctly. Repeat the above step until the cable is properly connected
with only a small amount of slack or play. |
- Reconnect the brake cable to the equalizer plate by grasping the single
park brake cable coming from the front of the vehicle and pulling rearward.
- While the single front cable is pulled rearward, insert the end of the
disconnected cable into the opening on the equalizer plate.
- Fully apply and release the parking brake 6 times.
- Inspect the equalizer plate and verify that it is vertical or near vertical
as shown in the first graphic above. If the equalizer plate is not or near vertical,
repeat steps 6 through 11 above.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation
| Description
| Labor Time
|
H9705*
| Parking Brake Cable - Inspection
| 0.2
|
H9706*
| Parking Brake Cable - Inspection and Repair
| 0.3
|
*This is a unique labor operation for use only with this bulletin. This number
will not be published in the Labor Time Guide.