ATC System - Erratic Operation

88ford2

AIR CONDITIONING - AUTOMATIC TEMPERATURE CONTROL (ATC) - ERRATIC OPERATION - VEHICLES BUILT BEFORE 10/05/87
Article No. 88-2-3
LINCOLN-MERCURY: 1986-88 LINCOLN TOWN CAR
ISSUE: Erratic operation of the ATC system may be caused by a loose vacuum hose at the vacuum motor. The loose hose allows vacuum to leak causing the vacuum motor to divert the A/C output to the defroster nozzles instead of to the instrument panel registers. The vacuum hose may loosen if it rubs on the left and right lower instrument panel insulators.

ACTION: To correct this, rework the right and left lower instrument panel insulators using the following service procedure.

FIGURE 11:

1. Rework left insulator by trimming a 3" x 1" notch along the shaded edge as shown in Figure 11.

2. Rework right insulator by trimming the shaded corner as shown in Figure 11.

NOTE: The 45 degree trim line is located 1.5 inches from corner of insulator.
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty Coverage
OPERATION: 880203A
TIME: 0.3 Hr. DLR. CODING: Basic Part No. 7004320
Code: 35