626 L4-1998 cc 2.0L SOHC FE (1987)
Evaporator Core: All Technical Service Bulletins
A/C Evaporator - Freezes Up
Category 16
Applicable Model/s 1986-87 626
Subject EVAPORATOR FREEZE-UP
Bulletin No.
043/89
Issued
12/29/89
Revised
DESCRIPTION
Some reports have been received regarding the A/C evaporator on 626 vehicles which "freezes-up" and causes insufficient cooling performance. In most
cases, this condition is caused by a defective thermistor and/or a thermistor that is incorrectly installed in the evaporator. If a customer complains about
insufficient cooling performance, follow the procedures below in order to diagnose and repair evaporator freeze-up vehicles.
REPAIR PROCEDURES
1.
Diagnosis
If the following conditions occur on the vehicle, which may be caused by the evaporator freeze-up, proceed to Step 2.
^
Insufficient cooling from center louver.
^
Compressor does not cycle properly. (Magnet clutch is engaged all the time.)
^
Air volume from vents is reduced noticeably.
