Service Procedure, Parts and Warranty Information
PRELIMINARY INSPECTIONBrake Pedal:
1. Inspect the left side of the brake pedal assembly to verify the stamping number (Figure 1). If the number 698 (Figure 1) is stamped into the pedal assembly no further action is required. Install a "Campaign Identification Label" and submit a Warranty Repair Order as described in the WARRANTY INFORMATION section of this bulletin.
2. If the number 698 is not stamped into the brake pedal assembly, it will be necessary to replace the brake pedal assembly with the correct assembly. Continue to the SERVICE PROCEDURE for instructions on replacing this assembly.
SERVICE PROCEDURE REMOVING THE STOP LAMP SWITCH
1. Disconnect the negative battery cable.
2. Remove the lower steering column trim panel.
Stop Light Switch:
3. Disconnect the electrical connectors from the stoplamp switch (Figure 2).
4. Remove the stoplamp switch from the retainer.
REMOVING THE BRACKET AND THE BRAKE PEDAL ASSEMBLY
Note:
The bracket and brake pedal assembly must be removed as a complete assembly.
Brake Pedal:
1. Remove the retainer, the two washers and the pushrod from the brake pedal pivot pin (Figure 1).
Steering Column Brace:
2. Remove the capsule nuts from the steering column brace and let the steering column rest on the seat (Figure 3).
3. Remove the relay from the left side of the brake pedal bracket.
Booster Bracket:
4. Remove the 4 nuts from the vacuum booster studs (Figure 4).
5. Remove the two bolts from the dash crossmember (Figure 4).
6. Carefully remove the brake pedal bracket assembly.
Brake Pedal:
7. Remove the brake pedal retaining pivot bolt from the brake pedal bracket assembly and remove the pedal (Figure 1).
8. Remove the existing thread locking compound from the pivot bolt threads.
9. Coat the pivot bolt threads with Medium Strength Thread Locking Compound (P/N 12345382).
10. Install the correct brake pedal into the bracket assembly (P/N 15641698) and torque the retaining pivot bolt to 40-55 N-m (30-41 lbs.ft.).
11. Reinstall the brake pedal bracket assembly onto the vacuum booster studs.
12. Reinstall the 4 nuts and torque them to 29 N-m (21 lb.ft.)
13. Reinstall the 2 bolts into the dash crossmember and torque the bolts to 12 N-m (16 lb.ft.).
Use Figure 1 for steps 14 thru 19.
14. Reinstall the washer, the pushrod and the washer on the brake pedal pivot pin.
15. Reinstall the retainer into the pivot pin.
16. Reinstall the stoplamp switch into the retainer on the brake pedal bracket.
17. Connect the stoplamp switch connectors to the stoplamp switch.
18. Adjust the stoplamp switch.
The stoplamp switch will self adjust the first time the brake pedal returns to its "stopped" position after the switch is installed.
A. Apply the brake pedal and press the switch in until it firmly seats in the retainer.
Note:
"Clicks" can be heard as the threaded portion of the switch is pushed through the retainer.
B. Pull the brake pedal against the pedal stop until the click can no longer be heard.
Note:
Electrical contact should be made when the brake pedal is applied 11-24 mm (0.45-0.95 in) from the fully released position.
19. Install Campaign Identification Label, on the radiator core support.
PARTS INFORMATION
Due to the small quantity of parts that are estimated to be required (10%), it is important to inspect the left side of the brake pedal assembly to verify the stamping number prior to ordering parts. It is estimated that the possibility of vehicles requiring the brake pedal assembly is extremely remote.
Parts are to be obtained from General Motors Service Parts Operations (GMSPO). To insure that these parts will be obtained as soon as possible, they should be ordered from GMSPO on a C.I.O. order with no special instruction code but order under advise code (2).
WARRANTY INFORMATION
Dealers should submit a warranty claim on each vehicle completed under this campaign.
For dealer to receive Administrative Time Allowance associated with this campaign. add 0.1 hour to the Labor Operation Time Allowance.
CAMPAIGN IDENTIFICATION LABEL
Each vehicle corrected in accordance with the instructions outlined in this Product Campaign Bulletin will require a "Campaign Identification Label." Each label provides a space to include the campaign number and five (5) digit dealer code of the dealer performing the campaign service. This information may be inserted with a typewriter or ball point pen.
Each "Campaign Identification Label" is to be located on the radiator core support in an area which will be visible when the vehicle is brought in for periodic servicing by the owner.
Apply "Campaign Identification Label" only on a clean, dry surface.
ADMINISTRATIVE PROCEDURE
Procedures covering this campaign are outlined in Section V of your dealership's "GM Truck Claims Processing Manual" # P9119.