Regal V6-231 3.8L VIN L SFI (1990)
FIGURE 3
If the heater system is operating properly and engine temperature is in the operating range, the cause of the problem may be that the heater core has been
pushed out of its proper position, see Figures 1 and 2. This misposition of the heater core allows the outside cold air to by-pass the core and enter the
vehicle through the heater outlets.
This condition is compounded if the vehicle does not have the latest new heater outlet, as referred to in Bulletin # 89-1-17 and shown in Figure 3 of this
bulletin.
To address this condition use the Service Manual Procedure for the removal of the heater core cover. If the core is out of position as shown in Figure 2
reposition the core and install the heater core cover. If the HVAC module has the old heater outlet, as shown in Figure 3, it would be advisable to install
the new heater outlet as specified in Bulletin # 89-1-17.
Use the applicable Labor Operation and Time.
