Heater - Insufficient Heat Distribution, Low Air Flow
File In Section: 1 - HVACBulletin No.: 63-11-04
Date: February, 1996
Subject:
Insufficient Heat Distribution or Lack of Air Flow from Heater Outlet (Install Additional Heater Duct)
Models:
1992-96 Cadillac Eldorado, Seville
1994-96 Cadillac Concours, DeVille
with 4.6L, 4.9L Engines (VINs B, Y, 9 - RPOs L26, LD8, L37)
Condition
Some owners may comment on insufficient heat distribution or lack of air flow from the heater outlet causing the driver's foot to become cold.
Correction
Install an additional heater duct, P/N 25646109, that directs air toward the driver's foot and increases air flow. This duct is installed to the left side of the air distributor below the mode valve actuator. Figure 1 shows the location point of the template used for cutting the hole for the additional duct. The template rests on the lower edge of the air distributor where the floor outlet assembly attaches to the air distributor. Figure 2 is the actual size of the template necessary for installing the duct. The duct is retained to the air distributor with an interference fit and a screw, refer to Figure 3.
Parts Information
Parts are currently available from GMSPO.
Warranty Information
For vehicles repaired under warranty, use:
Labor Operation Labor Time
D1586 0.4 hr