Range Rover SE (LP) V8-4.0L (1995)
Compressor Clutch: Customer Interest
A/C - ATC Is Intermittently Inoperative
No.: 82/01/99/NAS
Ref:
Issue: 1
Date: 05/21/99
A/C Clutch Link Harness Installation
AFFECTED VEHICLE RANGE:
RANGE ROVER (LP)
MY 1995 up to VIN XA410503
SITUATION:
A/C CLUTCH FAILURE IN SERVICE
If a customer complains that the Automatic Temperature Control (ATC) system operates intermittently and the Handbook symbol on the ATC display is
lit, this may be the result of vehicles in hot climates or under extreme conditions experiencing reduced engagement voltage for the Air Conditioning
compressor clutch. This in turn may lead to clutch slippage and ultimately to clutch failure.
RESOLUTION:
REPLACE FAULTY CLUTCH/COMPRESSOR IF APPLICABLE AND INSTALL HARNESS
To ensure that sufficient voltage (11.5 VDC minimum) is always available for A/C clutch engagement, special wiring harnesses have been developed.
Whenever a failed clutch is replaced or a clutch is adjusted, these modified harnesses should be installed. In addition, due to the possibility of damage to
the compressor clutch, it will also be necessary to confirm the condition of this component by inspecting the clearance as described in the repair
procedure in this bulletin.
PARTS INFORMATION
WARRANTY CLAIMS
REPAIR PROCEDURE:
DETERMINE A/C CLUTCH CONDITION
NOTE:
Prior to beginning work, carry out an initial inspection to confirm that the new link harnesses have not already been installed. Compressor link
harness LRN104310KIT can be identified by the presence of resistor A (Figure 3) Alternator link harness YSB106340 can be identified by
referring to Figure 10 references A and B.