Technical Procedure, Label, Parts, & Warranty Information
TECHNICAL PROCEDURECAUTION: Before disconnecting any hydraulic lines, hoses, or fittings, be sure that the accumulator is fully depressurized. Failure to depressurize the hydraulic accumulator may result in personal injury or damage to painted surfaces.
The following steps are to be used to replace the left front brake pipe assembly. Vehicle should be located over a hoist:
1. With the ignition off, depressurize the hydraulic accumulator by pumping the brake pedal a minimum of 25 times using a pedal force of approximately 50 lbs. When a definite increase in pedal effort is felt, stroke the pedal a few additional times. This should remove all hydraulic pressure from the system.
2. Raise hood and install left fender cover.
3. To provide access to the brake pipe, remove all electrical connections to the hydraulic brake unit.
FIGURE 1:
FIGURE 2:
FIGURE 3:
4. Loosen the left front brake fitting at the hydraulic brake unit. The left front brake pipe assembly is the forward most pipe on the bottom of the brake hydraulic unit. (See Figure 1)
5. Remove the left front tire and wheel assembly and wheel covers, if so equipped. To provide adequate clearance, turn the front wheel to the left.
6. Loosen the left front brake line fitting at the hose end. (See Figure 2)
7. Remove the left front brake pipe assembly. The brake pipe is attached to a clip which is held in place at the engine compartment frame rail (See Figure 3). Remove the clip with the brake line assembly and attach it to the replacement brake pipe assembly (part number 3521577).
8. Route the new brake pipe assembly into position and finger tighten the fitting at the brake hydraulic unit. Verify that the left front brake pipe assembly is properly positioned before tightening.
9. Tighten the brake fitting at the left front wheel 15 N-m (11 lb. ft.).
10. Tighten the line at the brake hydraulic unit 12 N-m (9 lb. ft.).
11. Secure the left front brake pipe clip into the inner fender in the engine compartment.
12. Verify that brake lines do not contact the cruise control servo bracket or cruise cable. Verify that all brake pipes do not contact each other in the area of the brake hydraulic unit and cruise control servo bracket. Bend brake pipes away (rearward) from the left front pipe to maintain a minimum of 15 mm (.6 in.) clearance, if required.
13. Replace all electrical connections.
14. Bleed left front brake circuit. Follow proper bleeding procedure in Section 5E of the Service Manual.
15. Turn ignition on, check for leaks, and proper brake pedal "feel" and effort.
16. Replace left front tire and wheel assembly and wheel cover, if so equipped.
17. Install Campaign Identification Label and remove fender cover and close hood.
18. Verify that brake system is operating properly.
CAMPAIGN IDENTIFICATION LABEL INSTALLATION
Each label provides a space to include the CAMPAIGN NUMBER, the five (5) digit dealer code of the dealer performing the campaign service, and the date vehicle was campaigned. This information may be inserted with a typewriter or ballpoint pen. When installing label, clean the surface of the radiator support tie bar and apply the campaign label where it is readily visible.
DISPOSITION OF PARTS
Replaced parts must be held for disposition by Buick Zone or Branch contact personnel. Parts must have a claim tag attached showing the repair order and the VIN of the vehicle from which they are removed.
WARRANTY INFORMATION
FAILED OTHER SUBLET
PART PART PARTS FAILURE LABOR LABOR LABOR DEALER
OPER COUNT NUMBER ALLOW CODE 0P NO HOURS HOURS MTL TWG
* Replace Left Front Brake Pipe Assembly
1 3521577 ** 96 V5340 .9 .1 ***$2.86
* 0.1 hour administration.
** List current dealer price of parts, plus 30%.
*** $2.86 represents the allowance for 1 pint of DOT 3 Brake Fluid,
GM part number 1052535.