A/C - Uneven Temperature Between L/R Heater Outlets
NO.: 93-T-11DATE: March, 1993
GROUP: HVAC-01
CORP.NO.: 381102
SUBJECT:
Uneven Air Temperature Between Left and Right Heater Outlet Ducts
(Install New Heater Core Cover)
MODELS AFFECTED:
All 1991-1992 Saturns built before, and including VIN NZ147087.
CONDITION:
Some owners may notice a difference in air temperature between the air coming out of the left and right heater duct outlets.
CAUSE:
Cold and warm air moving through the HVAC module is not mixing completely.
CORRECTIVE ACTION:
Install a new heater core cover P/N 52454598 that has molded-in baffles according to the following procedure. This will mix the warm and cold air in the heater duct before it exits the outlets.
PROCEDURES
Removal
1. Remove left and right lower trim panel extensions by disconnecting lower Velcro(TM) fasteners and pulling out at upper clip locations.
2. Remove screws on lower heater duct.
3. Drop heater duct straight down and carefully slide out sideways.
NOTICE:
Take care not to damage heater duct-to-rear floor heater duct seal.
4. Release temperature cable hold down clip from lower heater core cover by carefully lifting up on plastic tab, while pushing down on top of cable.
5. Squeeze temperature valve pin and pull temperature cable straight off.
6. Remove screws and heater core side cover.
7. Remove screws and lower heater core cover.
Installation
IMPORTANT:
New heater core cover has molded-in baffles to mix air in heater duct. Make sure the heater core cover to be installed has these baffles.
1. Install new lower heater core cover and screws.
2. Install heater core side cover and screws.
3. Push temperature cable over temperature valve pin and snap temperature cable hold down clip over temperature cable holder.
4. Install heater duct by carefully sliding in sideways and up into position.
Notice:
Take care not to damage rear floor heater duct seal.
5. Install screws on lower heater duct.
6. Install left and right lower trim panel extensions.
PARTS REQUIREMENTS:
52454598 Heater Core Cover
CLAIM INFORMATION:
To receive credit for this repair, submit a claim through the Saturn Dealer System. See illustration.