A/C Control Knobs - Fall Off
90pontiac24Bulletin Number: 91-1-4
Reference Number: 031212
Publish Date: 11/90
Subject: HEATER AND/OR A/C CONTROL KNOBS MAY BE LOOSE OR FALL OFF (GLUE KNOBS IN PLACE)
Models
Affected: 1988-91 LEMANS
Instead of replacing the entire heater and/or A/C control head for loose mode select or temperature control knobs, it is possible to glue the knobs in place.
Repair Procedure:
If either the mode select or temperature rotary control knob is loose, remove it from the shaft by grabbing the raised portion of the knob and pulling it horizontally rearward. Place a small drop of Loctite
(R) # 290 Super Bond, or equivalent, in the hole on the backside of the knob and replace it back on the shaft. Allow the glue to dry before cycling the controls.
Labor Operation Number: D0100
Labor Time : 0.2 Hours