A/C - Vacuum Hose Leakage

Bulletin No. T 87-62
File in Group 6E
Number 39
Corp. Ref. No. 616509
Date Jan. '87

SUBJECT: VACUUM HOSE LEAKAGE

MODELS AFFECTED: 1986 DE VILLES AND FLEETWOODS

Some 1986 De Villes and Fleetwoods may experience any or all of the following conditions:

^ Air conditioning discharge air diverted to the lower vents.

^ Automatic parking brake release inoperative.

^ Brake warning light illuminated due to low booster vacuum level.

^ Cruise control inoperative.

^ Reduction in power brake assist.

Figure 1 - Vacuum Source Hose:

These conditions may be caused by a vacuum source hose leak. To correct this condition, inspect for improper connections or splits in vacuum source hoses (Figure 1). The hoses marked A and B in Figure 1 should be inspected thoroughly. Replace any vacuum source hoses that are split (do not trim off split portion of hose).