A/C - Temperature Control Hard to Operate/Inoperative
88pontiac17Bulletin Number: 88-1-10A
Reference Number: 831205R
Publish Date: 9/88
Subject: TEMPERATURE CONTROL HARD TO OPERATE/INOPERATIVE
Models
Affected: 1988 LeMANS
"This bulletin supersedes bulletin 88-1-10, dated 3/88. This bulletin is being revised to clarify the description of the air mix control switch in paragraph 3."
Some of the subject vehicles may experience a hard to operate or inoperative air temperature control for the air conditioner/heater system.
This condition may be caused by binding, or an excessive force requirement, in the bowden cable (part of the air mix control switch) which links the temperature control knob to the A/C underdash unit.
The air mix control switch, P/N 90244577 has been revised to incorporate a new improved bowden cable and is available from GMSPO. The revised version of this part is recognizable by the black outer casing to the bowden cable (original design parts have a white casing) and rivets holding the control halves together.
Parts are currently available from GMSPO.
Corrective action for vehicles exhibiting this condition is to replace the air mix control switch, using the above part number and following the service manual procedure.
WARRANTY INFORMATION
Labor Operation: D0360 and D0447
Labor Time : .9 Hours