Defender 90 (LD) V8-4.0L (1997)
Evaporator Case: All Technical Service Bulletins
A/C - Water Sloshing Sound From Heater
No:
80/02/01/NAS
Ref:
Issue:
1
Date:
06/22/01
Heater System Drain Contamination
AFFECTED VEHICLE RANGE:
Defender (LD)
All
SITUATION:
SOUND OF WATER MOVEMENT IN HEATER
A Defender customer may hear the sound of water movement when driving. The customer may also complain that in high humidity and temperature
conditions the heater system can be required to defog the windshield. Water that has been trapped in the heater intake plenum because the intake drain
valve is "stuck" shut or blocked can cause either symptom.
RESOLUTION:
CLEAN VENT AND REMOVE DEBRIS
The surface of the valve can become coated by engine compartment contaminants reducing its flexibility. The valve may also be blocked with debris
from the inside. Clean the drain and remove the blockage to ensure free water drainage.
PARTS INFORMATION:
No parts involved.
WARRANTY CLAIMS:
80.20.89/29
Time 0.25 hrs.
Clean heater plenum drain
FAULT CODE: F
Normal warranty policy and procedures apply.
Material allowance is included in labor operation.
REPAIR PROCEDURE
CLEAN DRAIN FOR PROPER OPERATION
NOTE: