A/C Bi-Level Mode - Unbalanced Vent Air Flow: Overview

NUMBER: 24-20-99 Rev. A

GROUP: Heating & A/C

DATE: Dec. 17, 1999

THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 24-20-99, DATED OCT. 8, 1999, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE ADDITIONAL PARTS AND PROCEDURES.

SUBJECT:
While In Bi-level Mode, Air Flow From Panel Vents Is Less Than That Of The Floor Vents

OVERVIEW:
This bulletin involves installing a panel-defrost control lever **and a retaining push nut**.

MODELS:
1997 - 2000 (AN) Dakota
1998 - 2000 (DN) Durango

SYMPTOM/CONDITION:
While in bi-level mode, air flow from panel vents is less than that of the floor vents.

DIAGNOSIS:
While in bi-level mode, there should be an approximately 50% air distribution between the panel vents and the heater outlets. Operate the heater A/C system in panel, bi-level, and heater modes. If the air distribution is good in the heater and panel modes, but when in bi-level mode, air distribution to the heater outlets is greater than the panel outlets, perform the Repair Procedure.

PARTS REQUIRED:

1 03847858 Lever, Panel-Defrost Control
**1 06031147 Push Nut**

POLICY: Reimbursable within the provisions of the warranty.

TIME ALLOWANCE:

Labor Operation No: 24-50-33-91 1.4 Hrs.

FAILURE CODE: P8 - New Part