CAMPAIGN: PARKING BRAKE ASSY. CABLE MAY BE DISCONNECTED
MODELS/YEARS 1988 OLDSMOBILE CUTLASS SUPREME MODELS EQUIPPED WITH MANUAL TRANSAXLE (RPO MG2)
CONDITION
General Motors has determined that certain 1988 Oldsmobile Cutlass Supreme models equipped with manual transaxles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) 105/75, "Hydraulic Brake Systems". In some of these vehicles, the parking brake cable may be disconnected from the left rear brake caliper. With a disconnected cable, the parking brake can not be properly applied, and the vehicle will not meet the grade holding requirements specified in FMVSS 105.
VEHICLES INVOLVED
Involved are certain 1988 Oldsmobile Cutlass Supreme model vehicles equipped with a manual transaxle (RPO MG2) and produced within the following VIN breakpoints:
Assembly Plant Beginning Up To And Including -------------- --------- ------------------- Doraville JD300045 JD384164
A large number of the subject vehicles within the VIN breakpoints listed above were corrected at the assembly plant prior to being shipped to the dealer and will not require correction by the dealer. All subject vehicles which are listed on the dealer's campaign printout will require correction as outlined in the SERVICE PROCEDURE section of this bulletin.
Should a question arise concerning the campaign involvement of a specific vehicle(s) within the VIN breakpoints listed above, dealers should call the Computerized Recall Information System (C.R.I.S.) for verification.
DEALER ACTION
To prevent the possibility of this condition occurring, dealers are to install a retainer on the left rear caliper of those vehicles on which the cable is not already retained with a cotter pin and adjust the parking brake system using the procedure described in this bulletin. In addition, to improve durability of the parking brake pedal assembly, a new one will be installed.
Dealers are to perform this campaign on all vehicles involved at no charge to owners, regardless of mileage, age of vehicle, or ownership, from this time forward.
Whenever a vehicle subject to this campaign is taken into your new or used vehicle inventory, or it is in your dealership for service, dealers are to ensure the campaign correction has been made before selling or releasing the vehicle.
Dealers are to contact owners of vehicles recently sold from your new vehicle inventory and arrange for the campaign correction to be performed.
SERVICE PROCEDURE
1. Replace park brake pedal assembly with new assembly (part number 10130137) per 1988 Oldsmobile Cutlass Supreme Chassis Service Manual, Section 5, Page 5-13.
2. Pull park brake release handle out and hold in release position by tying to steering wheel or clamping vise grip on handle close to dash bracket (see Figure 1).
3. Raise and suitably support vehicle.
4. Install park brake cable retainer (part number 18016553) on left hand caliper lever and park brake cable. If lever has a cotter pin installed, do not install retainer (see Figure 2). Left hand is driver's side of vehicle.
5. To insure proper adjustment, the caliper levers must not move. To insure caliper levers do not move, perform the following:
A. Block left hand lever with either a 5/8" or 3/4" hex nut (see Figure 2). Use nut that fits tightest.
B. Clamp right hand lever as shown in Figure 3.
6. Disconnect equalizer retainer spring (see Figure 4).
NOTICE: Before proceeding, apply lubricant between nut face and equalizer surface to prevent galling of these surfaces (see Figure 4).
7. Hold cable firmly with locking pliers and rotate adjustment nut to obtain a 35 mm (1 3/8") measurement from nut face to swaged end of adjuster rod (see Figure 4).
8. Release clamp on right hand lever only. Also, make sure left hand lever is in fully released position (pulled back against caliper stop).
9. Reverse rotation of equalizer nut until a measured gap of 0.5 mm (.020") is obtained between right hand lever and caliper stop (see Figure 5).
10. Remove hex nut from left hand caliper lever.
11. Reconnect equalizer retainer spring.
12. Release park brake release handle.
13. Lower vehicle and install Campaign identification label.
CAMPAIGN IDENTIFICATION LABEL
Each label provides space to print the campaign number, and the five (5) digit dealer code of the dealer performing the campaign. Insert this information with a typewriter or ballpoint pen. When installing label, clean and dry the surface of the radiator support tie bar and apply the campaign label where it is readily visible.
PARTS INFORMATION
To ensure parts are obtained as soon as possible, order them from GM Service Parts Operations (GMSPO) on a C.I.O. order, with NO special instruction code, but order on an Advise Code (2). Use the following part numbers:
Description Part Number Quantity Per Vehicle ----------- ----------- -------------------- Lever, Park Brake 10130137 1 Retainer, Park Brake Cable 18016553 1
All of the affected vehicles listed in the dealer's campaign printout will require the lever, but it is estimated that only 50% of the affected vehicles will require a Retainer, hence orders should be made accordingly.
WARRANTY CLAIM INFORMATION
Use ONE of the two operations listed below for each involved vehicle serviced:
PC PART-NO. TOT-PTS TC LAB-OP LHRS ST SUBLET -- -------- ------- -- ------ ---- -- ------ Install Park Brake Lever, Retainer and Adjust
96 V4940 1.4* -- ---
Install Park Brake Lever and Adjust
96 V4941 1.4* -- ---
*.l hour for clerical administration may be added to the above operation. Parts allowance: Current dealer price, plus 30 % allowance for handling.
General Motors bulletins are intended for use by professional technicians, not a "do-it-yourselfer". They are written to inform those technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions and know-how to do a job properly and safely. If a condition is described, do not assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See a General Motors dealer servicing your brand of General Motors vehicle for information on whether your vehicle may benefit from the information.
