A/C - Insufficient Cooling At Idle
87cadillac8Bulletin No. T-88-42
File in Group 1
Number 45
Corp. Ref. No. 711215
Date Nov. '87
SUBJECT: INSUFFICIENT A/C COOLING AT IDLE
MODELS AFFECTED: 1986 AND 1987 ELDORADOS AND SEVILLES
Some 1986 and 1987 Eldorados and Sevilles may experience a condition of insufficient air conditioning cooling at idle or while driving at low speeds in high ambient temperatures and humidity. This condition may be caused by insufficient air flow across the condenser and a greater than optimal charge level. To repair this condition, install a cooling fan shroud, P/N 22054223, and reduce the refrigerant charge level to 2-3/8 lbs. using the following procedure:
1. Remove A/C compressor hose bracket screw.
2. Remove the air cleaner air inlet duct.
3. Remove two fan bracket bolts.
4. Disconnect electrical connector to fan motor and remove the wire from the two retaining clips.
5. Remove fan and ring bracket.
FIGURE 1 - MARKING FAN/MOTOR FOR REASSEMBLY REFERENCE:
6. Mark fan motor shaft and fan hub as shown in Figure 1 to ensure correct balance upon reassembly.
7. Transfer fan motor, two rubber isolators, and two wire retaining clips to fan shroud, P/N 22054223.
8. Install fan and shroud using original fan bracket bolts.
NOTICE: Ensure spark plug wire is positioned away from fan blade to avoid contact.
9. Connect fan motor wire connector and place wire into retainers.
10. Discharge, evacuate, and charge A/C system to 2-3/8 lbs.
For warranty purposes, use Labor Operation T6248 at .4 hour to install fan shroud. Use add time of .5 hour to evacuate and charge A/C system.