Blend Door - No Heat To Right Front Side
NUMBER: 24-006-01GROUP: Heating & A/C
DATE: May 4, 2001
SUBJECT:
No Heat on Front Right Side
OVERVIEW:
This bulletin involves replacing the blend air door shaft with a new part.
MODELS:
2001 (RS) Caravan/Town & Country/Voyager
2001 (RG) Chrysler Voyager (International Markets)
NOTE:
THIS BULLETIN APPLIES TO LEFT HAND DRIVE (LHD) VEHICLES WITH ZONE CONTROL OR AUTOMATIC TEMPERATURE CONTROL (ATC) HVAC SYSTEMS.
SYMPTOM/CONDITION:
The vehicle operator may complain of no heat in any mode, from the front right side of the vehicle.
DIAGNOSIS:
If the above condition is verified, perform the Repair Procedure.
PARTS REQUIRED:
REPAIR PROCEDURE:
THIS REPAIR IS COMPATIBLE WITH DAIMLERCHRYSLER'S MOBILE SERVICE PROGRAM AND DOES NOT REQUIRE HOISTS OR OTHER FULL SERVICE FACILITY SPECIAL EQUIPMENT.
1. Disconnect and isolate the negative battery cable.
2. Remove the silencer pad from beneath the driver side end of the instrument panel.
3. Remove the driver's side knee bolster.
4. Remove the three screws that secure the heater core shield to the left end of the HVAC distribution housing (Fig. 1).
5. Pull the heater core shield rearward far enough to disengage the two location tabs that position the front of the shield to the receptacles in the two lower finger formations of the heater/air conditioner housing near the dash.
6. Remove the heater core shield from the distribution housing.
7. Remove the two screws that secure the passenger blend door actuator to the distribution housing (Fig. 2).
NOTE:
MARK LOCATION OF PLASTIC EXTERNAL STOP POSITION ON THE BLEND AIR DOOR SHAFT FOR REINSTALLATION.
8. Remove the metal blend air door shaft and plastic external stop attached to the shaft.
9. Install the new blend door shaft through the blend air door and into the housing.
10. Reinsert the plastic external stop to the blend air door shaft in the same position as it was removed. Rotate the blend air door shaft by hand to ensure the plastic door stop stops rotation of the shaft between the stop bumpers in the housing.
11. Position the blend air door actuator onto the distribution housing. It necessary, rotate the actuator slightly to align the splines on the actuator output shaft with those in the blend air door linkage.
12. Install and tighten the two screws that secure the blend door actuator to the distribution housing . Tighten screws to 2 Nm (17 in. lbs.).
13. Position the heater core shield onto the distribution housing. Be certain that the two location tabs on the front of the shield are engaged in the receptacles in the two lower finger formations of the evaporator housing near the dash panel.
14. Install and tighten the three heater core shield screws and tighten to 2 Nm (17 in. lbs.).
15. Install knee bolster.
16. Install silencer pad.
17. Reconnect battery negative cable.
18. Perform the heater-NC control calibration procedure:
a. Turn the ignition switch to the ON position.
b. Simultaneously depress and hold the Power and Recirculation buttons on the heater-A/C control for at least five seconds. The manual heater-A/C control Delay Light Emitting Diode (LED) and Recirculation LED, or the Automatic Temperature Control (ATC) heater-A/C control Delay and Recirculation graphics will begin to flash when the calibration procedure has begun.
c. The calibration procedure should take less than three minutes to complete for the manual system, and less than twenty seconds for the ATC system. When the LED's or graphics stop flashing, the calibration procedure is complete.
d. If the LED's or graphics continue to flash beyond the time stated above, it indicates that the heater-A/C control system has detected a failure and a Diagnostic Trouble Code (DTC) has been set. Use the DRBIII(R) scan tool and the appropriate diagnostic information for further diagnosis.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE: