Firebird V8-305 5.0L VIN F FI (1987)
Expansion Block/Orifice Tube: Customer Interest
A/C Compressor - Repititive Failures
Number
87-1-2
Date
11/86
Subject:
REPETITIVE INOPERATIVE AIR CONDITIONING COMPRESSOR AND FLUSHING WITH REFRIGERANT 12
ALL WITH AIR CONDITIONING
The use of air conditioning flushing to prevent a repetitive inoperative condition of the compressor after an internal compressor malfunction has received
recent attention.
After a compressor has become inoperative internally, the expansion (orifice) tube assembly should be removed and checked for contamination of the
filter screens. If contamination is noted, flush the system with refrigerant 12 (R-12), following the procedure outlined in the 1987 Service Manual on
page 1B-20.
On cars where the expansion tube assembly is remote from the evaporator inlet, the same flushing procedure should be followed and the expansion tube
assembly checked for contamination. Repeat the flushing procedure, if required, until the screens on the expansion tube assembly do not indicate new
contamination. An in-line filter is being developed for use with remote expansion tube assembly locations.
